Littérature scientifique sur le sujet « Geological bar »
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Articles de revues sur le sujet "Geological bar"
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Luo, Chao, Ailin Jia, Jianlin Guo, Wei Liu, Nanxin Yin, Cen Chen, Junlei Wang, Xuanbo Gao et Zhiqiang Guo. « Modeling of dense well block point bar architecture based on geological vector information : A case study of the third member of Quantou Formation in Songliao Basin ». Open Geosciences 13, no 1 (1 janvier 2021) : 39–48. http://dx.doi.org/10.1515/geo-2020-0222.
Texte intégralRésumé :
Abstract Although stochastic modeling methods can achieve multiple implementations of sedimentary microfacies model in dense well blocks, it is difficult to realize continuous convergence of well spacing. Taking the small high-sinuosity meandering river sediments of the third member of Quantou Formation in Songliao Basin as an example, a deterministic modeling method based on geological vector information was explored in this article. Quantitative geological characteristics of point bar sediments were analyzed by field outcrops, modern sediments, and dense well block anatomy. The lateral extension distance, length, and spacing parameters of the point bar were used to quantitatively characterize the thickness, dip angle, and frequency of the lateral layer. In addition, the three-dimensional architecture modeling of the point bar was carried out in the study. The established three-dimensional architecture model of well X24-1 had continuous convergence near all wells, which conformed to the geological knowledge of small high-sinuosity meandering river, and verified the reliability of this method in the process of geological modeling in dense well blocks.
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Sinaga, Goldberd Harmuda Duva, Agoez Loeqman, Ruben Cornelius Siagian et Mardame Pangihutan Sinaga. « Analysis of Coulomb Stress Changes in Aceh Earthquake on Sibayak Volcano ». Jurnal Pendidikan Fisika dan Teknologi 8, no 2 (21 décembre 2022) : 217–27. http://dx.doi.org/10.29303/jpft.v8i2.4409.
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Based on geological conditions, Indonesia is located between the Indo-Australian plate, the Eurasian plate, and the Pacific plate, making Indonesia prone to tectonic earthquakes. However, since the big earthquake that occurred in Aceh on December 26, 2004, the geological conditions in Sumatra have undergone significant changes marked by stressful situations in the western to southern regions of Sumatra, especially on Sibayak Volcano. This study used data from BMKG and Global CMT, which included magnitude (Mw), depth, earthquake coordinates (longitude and latitude), type of earthquake, strike, dip, and rake. From the analysis using Coulomb 3.3, the highest coulomb stress value of Sibayak Volcano was obtained in 2015 with an average change in coulomb stress of 0.235 bar, shear 0.1909 bar, normal 0.1106 bar. However, the lowest coulomb stress value occurs in 2021 with a moderate shift in coulomb stress of 0.0593 bar, shear 0.0251, normal 0.0849 bar.
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Neuhoff, P. S., et D. K. Bird. « Partial dehydration of laumontite : thermodynamic constraints and petrogenetic implications ». Mineralogical Magazine 65, no 1 (février 2001) : 59–70. http://dx.doi.org/10.1180/002646101550127.
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AbstractLaumontite is a common zeolite mineral indicative of low-grade metamorphism of lavas and volcaniclastic sediments. Stoichiometric laumontite (CaAl2Si4O12·4.5H2O) dehydrates in air at 298.15 K, 1 bar to leonhardite (CaAl2Si4O12·3.5H2O) via loss of water from the W1 crystallographic site. Consideration of reported X-ray diffraction and calorimetric data indicates that the standard molal volume and entropy for dehydration of laumontite to leonhardite + liquid water are ∼13 cc/mol and ∼8 cal/molK, respectively, at 298.15 K, 1 bar. Equilibrium between laumontite and leonhardite occurs at 70 to 80% relative humidity at 298.15 K, 1 bar, corresponding to a standard molal Gibbs energy and enthalpy of reaction of ∼170±40 and ∼2630±100 cal/mol, respectively. Calculated univariant equilibrium for this reaction is nearly linear from 46±3°C at 1 bar to 235±3°C at 5000 bar. Comparison of geological observations with these results suggests that laumontite forms as ‘leonhardite’ during metamorphism and diagenesis. Consideration of ‘leonhardite’, instead of laumontite, in low-grade metamorphic phase relations facilitates prediction of the relative stabilities of zeolites in natural and geologic systems, where calculated entropies of reaction incorrectly predict that assemblages bearing fully hydrated laumontite are stable at lower temperatures than the zeolites heulandite and stilbite.
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Qi, Ren Li, Kai Yuan Chen, Bo Niu et Zhan Tao Xing. « The Depositional System of Dongying Formation and Subtle Reservoir Exploration in Sha’nan Structural Belt Qikou Sag of Bohai Bay Basin, China ». Advanced Materials Research 616-618 (décembre 2012) : 32–37. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.32.
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The subtle reservoir has become an important exploration target within the Bohai Bay Basin, especially in the Qikou sag. In order to guide subtle reservoirs exploration in offshore area geological analysis to Sha’nan structural belt is carried out in this paper. Qikou sag has large thickness, high abundance, ideal type hydrocarbon source rock. By unconformity recognition technique and paleotectonic analysis technique, results show that tectonic uplift had provided sedimentary source to the depression around it after Es1. By 3-D seismic interpretation technique and Seismic facies analysis, the sedimentary facies was confirmed. Geological analysis results show that sand bar, subaqueous fan is developed around it in Ed3. With the new geological analysis data sedimentary model of Sha’nan structural belt has been built in this paper. The sand bar and subaqueous fans showed a good reservoir potential, which are advantageous to oil accumulations. The southern part of Sha’nan structural belt has good hydrocarbon exploration potential.
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Lee, J. B., P. R. Osborne, J. C. Williams et A. S. Woodyatt. « Airborne spectral sensing of hydrothermal alteration minerals ». Exploration Geophysics 20, no 2 (1989) : 81. http://dx.doi.org/10.1071/eg989081.
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Remote sensing infrared spectrometer data were collected with the Geophysical and Environmental Research Corp. 64 channel scanning spectrometer. These have been used to delineate geological units and, subject to some ambiguity, identify their mineralogy. Results are given for a survey area near Coppin Gap in the Pilbara region of Western Australia. Here, clear distinction was obtained between the sericite mineralogy of the Hardey Sandstone and some members of the Marble Bar belt, and the carbonate or epidote/chlorite mineralogy of the Kylena Basalt and other units in the Marble Bar belt.From the airborne spectrometer data it was also possible to identify and map the occurrence of the mineral pyrophyllite. Analysis of field samples confirmed the identification and provided evidence that the technique was indeed mapping the occurrence of this mineral.The applicability of this technique has been assessed from other surveys in Australia, and it appears to require good geological exposure and sparse vegetation. There is some scope for extension of its applicability through further instrumental developments.
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Tong, Rui Ming, Xian Long Lu et Wei Feng Zheng. « Experiment Study on Bolts Foundation of Large-Jointed Rock Mass in Transmission Lines ». Applied Mechanics and Materials 256-259 (décembre 2012) : 344–49. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.344.
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Large-jointed rock mass is the main geological condition of transmission lines of Qingyuan Regions in Guangdong Province. The bolt foundations haven’t be studied and applied in this geological condition. Static load tests of 15 single-bolt foundations and 8 group-bolt foundations were carried out. Experiment study shows that the mechanical characteristics of bolt foundation are suitable for transmission lines in large-jointed rock mass. The design parameters of anchor bar in large-jointed rock mass are derived from the measured data:τa>2359kPa, τb>618kPa, τc>42kPa.
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Aleksandrov, Vadim, Marsel Kadyrov, Andrey Ponomarev, Kirill Galinskij et Sergey Aleksandrov. « Genetic Zoning of the YUV1 Productive Horizon Deposits within the Tagrinsko-Yarainersky Bar ». Key Engineering Materials 785 (octobre 2018) : 140–45. http://dx.doi.org/10.4028/www.scientific.net/kem.785.140.
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The developed litho-sedimentological model of deposits of the YUV1productive horizon makes it possible to choose the most effective technique for supplementary exploration of a natural reservoir and improve the quality of geological justification for its subsequent development. The research objective is to carry out paleogeographic and paleostructural reconstructions, to identify facies complexes in the Upper Jurassic productive deposits, and to identify zones for the development of improved reservoir units. With the help of paleogeographic and facies methods, the geological regularities of the development of the territory encompassing the Tagrinsko-Yarainersky Bar in the Late Callovian-Oxfordian Stage were studied.
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Li, Wanbing, Shaohua Li, Quangong Qu, Huafeng Zhang, Junying Zhao et Mengjiao Dou. « A Modeling Approach for Beach-Bar Sand Reservoirs Based on Depositional Mode and Sandbody Volume ». Minerals 12, no 8 (28 juillet 2022) : 950. http://dx.doi.org/10.3390/min12080950.
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Beach-bar sand in lacustrine facies represents one of the most significant reservoirs. Depending on the depositional characteristics, it can be further divided into two different sedimentary microfacies, beach sand and the bar sand. Favorable reservoirs are often developed in bar sand. The lower section of the upper part of the 4th member of the Shahejie Formation in the Gao89-1 block is a typical nearshore shallow water beach-bar deposit. Oil distribution is influenced by lithofacies and physical properties. In order to better characterize the heterogeneity within beach-bar sandbodies, a modeling method based on the depositional mode and sandbody volume is proposed. Firstly, a sandbody model is established. On this basis, an algorithm for distinguishing between beach and bar sand based on vertical thickness is proposed. The model is post processed based on the sandbody volume to remove unreasonable sandbodies. The method allows for a more realistic three-dimensional geological model of the beach-bar sands in the study area than the classical two-point geostatistical, object-based, and multi-point simulation method. A facies-controlled modeling approach is used to establish a petrophysical property model on this foundation; the result shows that the property models better reflect the characteristics of the petrophysical distribution in the Gao89-1 block.
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Li, Jun Jie, Yuan Fu Zhang et Guo Guo Liu. « Sedimentary Research of Block8 in Jinglou Oilfield ». Advanced Materials Research 1010-1012 (août 2014) : 1435–39. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.1435.
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By core observation and logging in Block8, Jinglou oilfield, we distinguished the sedimentary structure characteristics and the logs’ features of subaqueous distributary channel, mouth bar, sheet sand and interdistributary. Then we promoted it in the whole region, and characterised the sedimentary faices of every layers. So we provide a reliable geological basis for progressive development in research area.
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Bohloli, Bahman. « Effects of the geological parameters on rock blasting using the Hopkinson split bar ». International Journal of Rock Mechanics and Mining Sciences 34, no 3-4 (avril 1997) : 32.e1–32.e9. http://dx.doi.org/10.1016/s1365-1609(97)00228-1.
Texte intégralThèses sur le sujet "Geological bar"
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Barr, Jamie Lynn. « Carbon dioxide sequestration underground laser based detection system ». Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/barr/BarrJ1209.pdf.
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Carbon dioxide (CO 2) is a known greenhouse gas. Due to the burning of fossil fuels by industrial and power plants the atmospheric concentration of CO 2 has been rising over the past 50 years. Carbon capture and sequestration provides a method to prevent CO 2 from being emitted into the atmosphere. Successful carbon sequestration will require the development of many pieces of technology including development of monitoring tools and techniques. An underground laser based monitoring system was built and tested at Montana State University (MSU) to measure sub-surface CO 2 concentrations at a sequestration site. The instrument uses differential absorption spectroscopy by temperature tuning a distributed feedback diode laser over several CO 2 absorption features located at 2.004 microns. The instrument utilizes photonic bandgap fibers for sub-surface spectroscopy CO 2 concentration measurements. The instrument was tested at a controlled release facility located on the MSU campus. The field and CO 2 release are managed by the Zero Emissions Research and Technology group at MSU. Three CO 2 injection tests were done over the coarse of two summers to simulate a fault or fracture line at a sequestration site. Results from all three tests are presented showing that the underground differential absorption instrument could be used to monitor sequestration sites.
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Le, Van-Hoan. « Analyses de microvolumes de gaz par spectroscopie Raman : expériences quantitatives et modélisation des mélanges CO₂-CH₄-N₂ ». Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0178.
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Les inclusions fluides naturelles peuvent fournir des informations quantitatives précieuses pour reconstruire les conditions de circulation des paléofluides. CO₂, CH₄ et N₂ sont les espèces gazeuses majoritaires le plus souvent rencontrées dans divers environnements géologiques. Cependant les données d’étalonnage des mélanges constitués de ces espèces pour une quantification de leurs propriétés PVX ne sont pas encore complètement établies. L'utilisation des données de calibration disponible dans la littérature peut donc entraîner des erreurs significatives. L'objectif central de ce travail de thèse est d’apporter des données d’étalonnage du signal Raman des gaz CO₂, CH₄, N₂ et de leurs mélanges, sur une gamme de pression de 5 à 600 bars, afin de pouvoir déterminer simultanément les propriétés PVX à une température fixée. Pour cela, des mélanges de gaz ont été préparés à haute pression par le biais d'un mélangeur (GasMix AlyTech) couplé avec un système de pressurisation développé au laboratoire GeoRessources. Des analyses in situ Raman des mélanges de gaz ont été réalisées dans des conditions contrôlées en utilisant le système HPOC couplé avec un microcapillaire transparent placé sur une platine microthermométrique (Linkam CAP500). L’incertitude des mesures des propriétés PVX à 22 ou 32 °C à partir de nos équations d’étalonnage est de < 1 mol%, ~ ± 20 bars et ~ ± 0,02 g.cm-³ pour la composition, la pression et la densité, respectivement. Un autre objectif du projet est d'interpréter la tendance de variation de la position du pic du N₂ et/ou CH₄ pour une compréhension approfondie. Deux modèles théoriques, i.e., le potentiel de Lennard-Jones 6-12 et le modèle « Perturbed hard-sphere fluid » ont été utilisés pour évaluer quantitativement la contribution des forces d'interaction intermoléculaire attractives et répulsives aux décalages des bandes de CH₄ et N₂. Un modèle prédictif a été proposé pour prédire la tendance de la variation de la position du pic du CH₄ jusqu'à 3000 bars en fonction de la pression et de la composition. En fin, l'applicabilité de nos données d'étalonnage aux autres systèmes gazeux ou dans d’autres laboratoires est discutée et évaluée. Des nouvelles données d’étalonnage universelles applicables dans d’autres laboratoires sont fournies. Un programme de calcul « FRAnCIs » avec une interface utilisateur a été développé pour rendre l'utilisation de nos données d'étalonnage accessibles au plus grand nombreQuantitative knowledge of species trapped within fluid inclusions provides key information to better understand geological processes as well as to reconstruct the conditions of paleofluid circulation. CO₂, CH₄, and N₂ are among the most dominant gas species omnipresent in various geological environments, but their quantitative PVX calibration data are not fully established yet. Using the previously published data can therefore lead to non-quantified errors, especially when applied to geological fluids containing generally several substances at elevated pressure and density. The aim of this work is to provide accurate calibration data for the simultaneous determination of PVX properties of pure gases or any binary and ternary mixtures of CO₂, CH₄, and N₂ over 5 to 600 bars at a fixed temperature, directly from Raman spectra. For this, gas mixtures were prepared and compressed using a mixer (GasMix AlyTech) coupled with a homemade pressurization system. Raman in situ analyses of gas mixtures were performed at controlled conditions using an improved HPOC system (High-Pressure Optical Cell) with a transparent microcapillary containing the prepared gas mixtures, placed on a heating-cooling stage (Linkam CAP500). Overall, the uncertainty of the measurement of the PVX properties of fluid inclusions from our calibration equations at 22 or 32 °C is < ± 1 mol%, ~ ± 20 bars, and ~ ± 0.02 g.cm-³ for molar proportion, pressure and density, respectively. The ensuing aim of the project is to interpret the variation trends of the peak position of the CH₄ and N₂ ν1 band for an in-depth understanding. Two theoretical models, i.e., Lennard-Jones 6-12 potential energy approximation and Perturbed hard-sphere fluid model were involved to quantitatively assess the contribution of the attractive and repulsive intermolecular interaction forces to the pressure-induced frequency shifts. A predictive model was also provided to predict the variation trend of the CH₄ ν1 band over a pressure range up to 3000 bars as a function of pressure and composition. Furthermore, the applicability of our calibration data to other laboratories and apparatus and to gas mixtures that contain a small amount of other species (e.g., H2, H2S) was discussed and evaluated. New universal calibration data applicable for other laboratories were then provided. A computer program “FRAnCIs” was also developed to make the application of our calibration data as convenient as possible via a user-friendly interface
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Gledhill, Dwight Kuehl. « Calcite dissolution kinetics and solubility in Na-Ca-Mg-Cl brines of geologically relevant composition at 0.1 to 1 bar pCO2 and 25 to 80°C ». Diss., Texas A&M University, 2005. http://hdl.handle.net/1969.1/3810.
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Sedimentary basins can contain close to 20% by volume pore fluids that are commonly classified as brines. These fluids can become undersaturated with respect to calcite as a result of processes such as migration, dispersive mixing, or anthropogenic injection of CO2. This study measured calcite solubility and dissolution rates in geologically relevant Na-Ca-Mg-Cl synthetic brines (35 to 200 g L-1 TDS). In brines < 50 g L-1 TDS, the EQPITZER calculated calcium carbonate ion activity product (IAP) at steady-state was in reasonable agreement (±10%) with the thermodynamic solubility constant for calcite (Kc). However, the IAP systematically exceeded Kc in more concentrated brines. The deviation was strongly correlated with calcium concentration and also was observed in magnesium-free solutions. This is interpreted as an uncertainty in the carbonate ion activity coefficient, and minor adjustment in stoichiometric association constants (K*M2+CO30) for the CaCO30 or MgCo30 ion pairs would correct for the error. The dissolution rate dependency on brine composition, pCO2 (0.1 to 1 bar), and temperature (25.0 to 82.5 °C) was modeled using the empirical rate equation ()nkRΩ−=1 where R is the rate, k and n are empirical fitting terms, and Ω the degree of disequilibrium with respect to calcite. When Ω was defined relative to an apparent kinetic solubility, n could be assumed first-order over the range of Ω investigated (Ω = 0.2 to 1.0). Rates increased with increasing pCO2 as did the sensitivity to brine concentration. At 0.1 bar, rates were nearly independent of concentration (k = 13.0 ±2.0 x 10-3 moles m-1 hr-1). However, at higher CO2 partial pressures rates became composition dependent and the rate constant, k, was shown to be a function of temperature, pCO2, ionic strength, and calcium and magnesium activity. The rate constant (k) can be estimated from a multiple regression (MR) model of the form k = B0 + B1(T) + B2(pCo2) + B4(aCa2+) + B5(aMg2+). A relatively high activation energy (Ea = 20 kJ mol-1) was measured, along with a stirring rate independence suggesting the dissolution is dominated by surface controlled processes at saturation states Ω > 0.2 in these calcium-rich brines. These findings offer important implications to reaction-transport models in carbonate-bearing saline reservoirs.
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Chapalain, Georges. « Étude hydrodynamique et sédimentaire des environnements littoraux dominés par la houle ». Université Joseph Fourier (Grenoble ; 1971-2015), 1988. http://www.theses.fr/1988GRE10121.
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La propagation des houles longues est étudiée expérimentalement, théoriquement et numériquement. La validité du modèle harmonique quasi-résonnant de lau et barcilon (1972) est confirmée. Les processus hydro-sédimentaires se développant dans la couche limite turbulente de fond générée par la houle sont analysés à l'aide d'un modèle uni-dimensionnel avec fermeture turbulente au second ordre. Un modèle simplifie avec fermeture turbulente au premier ordre est envisagé dans la perspective d'une modélisation des interactions des trains de houle avec un fond sableux. La modélisation hydro-morphologique ainsi élaborée explique la formation des barres sableuses d'avant-cote. Elle est confrontée avec succès à des mesures effectuées dans le lac Huron et dans le golfe du Saint-Laurent. L'extension de la modélisation a des substrats de granulométrie étendue est réalisée en vue de la simulation du tri granulométrique observe sur les systèmes de barres littorales. Enfin, un essai d'intégration des pertes d'énergie par les déferlements multiples survenant sur les séquences de barres est entrepris.
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Sorensen, Amanda Elizabeth MacKay. « Geologic mapping of exhumed, mid-Cretaceous paleochannel complexes near Castle Dale, Emery County, Utah : On the correlative relationship between the Dakota Sandstone and the Mussentuchit Member of the Cedar Mountain Formation ». BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2727.
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Numerous well-preserved, exhumed paleochannels in the Morrison, Cedar Mountain and Dakota Sandstone formations are exposed east of Castle Dale, Utah. These channels consist primarily of point bar complexes and scattered, low sinuosity channels. To determine the vertical and lateral relationships of these channels within the Cedar Mountain and Dakota Sandstone formations, a 1:24,000 scale geologic map covering ~140 km2 was created showing the fluvial sandstones. In the study area the Cedar Mountain Formation consists, from bottom to top, of 2.5-10 m of Buckhorn Conglomerate Member equivalent units, ~80 m of the Ruby Ranch Member, and ~30 m of the Mussentuchit Member. The Dakota Sandstone consists of conglomeratic to sandy, meandering channel fills within the Mussentuchit Member. The Ruby Ranch-Mussentuchit member contact is diagnosed as the top of a laterally extensive, ~10 meter thick, maroon paleosol with calcrete horizons and root traces. When deeply weathered the contact is discernable as a shift from maroon mudstone to a pale green-white, silty mudstone. Like the balance of the Mussentuchit Member overbank deposits, the white-green mudstone is rich in smectitic clays. In the southern one-third of the mapped area, Ruby Ranch Member sandstones are thin, discontinuous channel segments surrounded by floodplain deposits. In the middle to northern area, point bar complexes dominate, some of which are laterally amalgamated. Flow direction data from four meander complexes and a low sinuosity channel indicate an average northeast flow. Dakota Sandstone channels all of which are within the Mussentuchit Member also flowed to the northeast but point bar complexes are both more numerous and more laterally continuous than in the Ruby Ranch Member, indicating deposition in an area with less accommodation space than during Ruby Ranch Member time. The data indicate the Dakota Sandstone consists exclusively of fluvial sandstones encased within the Mussentuchit Member of the Cedar Mountain Formation. Therefore, these units are coeval and simply different facies of the same depositional system. Consequently the Mussentuchit Member is considered a member facies of the Dakota Formation.
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Lazzerini, Fábio Tadeu [UNESP]. « Fontes hidrominerais do Brasil : componentes biologicamente ativos (BAC) naturais ». Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/102997.
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Os ambientes e recursos naturais de fontes hidrominerais devem fazer parte da governança e planejamento estratégico na saúde pública, meio ambiente, bem estar, turismo e mineração. Na atual política nacional observada em: termalismo social/crenoterapia como prática integrativa complementar da medicina (PIC) através da Portaria Ministério da Saúde 971/2006; na exploração e aplicação das águas minerais prevista pelas Portarias Ministério das Minas e Energia 337/2002 e 127/2011; na implementação do turismo de saúde e bem está orientado formalmente pelo Ministério do Turismo (Brasil, 2010) e pela gestão ambiental de recursos hídricos subterrâneos nas Resoluções do Ministério do Meio Ambiente CONAMA 396/2008 e CNRH 107/2010). Assim considerando-as como jazidas ou reservas minerais, para identificar e avaliar tais ocorrências é utilizada a técnica de prospectar suas propriedades de interesse econômico, neste caso, os principais componentes biologicamente ativos ou BAC (“biologically active components”), com seus teores mínimos necessários e em quais tipos de benefícios à saúde. Encontrar tais características em localidades brasileiras foi a principal meta deste trabalho. Por intermédio de compilação bibliográfica foram selecionados onze grupos com um total de sessenta bioativos (BAC) relacionados às fontes hidrominerais, de eficácias internacionalmente demonstradas em aplicações curativas ou restauradoras e em cinco critérios de usos. Além disto, confeccionou-se um banco de dados georreferenciados de exemplos no país, contendo informações para as mesmas variáveis BAC anterirores. Sobreposições de mapas temáticos auxiliaram em avaliações geográficas e geológicas e, finalmente, comparações estatísticas filtraram a seleção de alvos. Resultando em 525 municípios com nascentes ou poços possuindo ao menos uma evidencia de BAC. Os argumentos utilizados foram importantes na demonstração da...
The natural surrounds and resources wrapping hot or mineral springs belong to sustainable matter involving governance and strategic planning of public health, environment, welfare, tourism and mining sectors. Noted it, through the current Brazilian policy demand: social thermalism/hydrotherapy/crenotherapy selected like complementary alternative medicine (CAM) by health ministry law MS 971/2006 (PNPIC), hydro-thermal therapy qualifying DNPM (MME Ordinance 127/2011 and MME 337/2002), health and wellness tourism formally oriented by tourism ministry and environmental management groundwater resources (Resolution MME / CONAMA 396/2008 and MME / CNRH 107/2010). Whereas as fresh potable reserves or potential mineral aquatic strategic deposits, the main biologically active components (BAC) were identified, with their minimum levels needed to related health benefits. Similar to conventional mining prospection, these “cut off grade” detection, at natural occurrences from Brazil, was the major goal in this work. The bibliographic systematic review allowed identify the main bioactive substances (BAC) related to springs sources of elements enougth or proven as health beneficial and at which indications. Wards after, it was performed a georeferenced database with these same variables (BAC) from Brazilian springs. Overlays all through thematic maps assisted in geographical and geological evaluations, whereas, at the end, statistical comparisons filtered target selection at all. The total 60 possible natural BAC and its minimum values for efficacy globally reviewed and established were detected at least one BAC occurrence from 703 mineral springs at 525 Brazilian cities. The arguments utilized were important in demonstrating the abundant and diverse existence of this endowment, where its potential health applications are virtually unknown today
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Lazzerini, Fábio Tadeu. « Fontes hidrominerais do Brasil : componentes biologicamente ativos (BAC) naturais / ». Rio Claro, 2013. http://hdl.handle.net/11449/102997.
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Orientador: Daniel Marcos BonottoBanca: Dejanira Franceschi de Angelis
Banca: Jairo Roberto Jiménez Rueda
Banca: Jorge Luis Nepomuceno de Lima
Banca: Daniel Figueira de Barros
Resumo: Os ambientes e recursos naturais de fontes hidrominerais devem fazer parte da governança e planejamento estratégico na saúde pública, meio ambiente, bem estar, turismo e mineração. Na atual política nacional observada em: termalismo social/crenoterapia como prática integrativa complementar da medicina (PIC) através da Portaria Ministério da Saúde 971/2006; na exploração e aplicação das águas minerais prevista pelas Portarias Ministério das Minas e Energia 337/2002 e 127/2011; na implementação do turismo de saúde e bem está orientado formalmente pelo Ministério do Turismo (Brasil, 2010) e pela gestão ambiental de recursos hídricos subterrâneos nas Resoluções do Ministério do Meio Ambiente CONAMA 396/2008 e CNRH 107/2010). Assim considerando-as como jazidas ou reservas minerais, para identificar e avaliar tais ocorrências é utilizada a técnica de prospectar suas propriedades de interesse econômico, neste caso, os principais componentes biologicamente ativos ou BAC ("biologically active components"), com seus teores mínimos necessários e em quais tipos de benefícios à saúde. Encontrar tais características em localidades brasileiras foi a principal meta deste trabalho. Por intermédio de compilação bibliográfica foram selecionados onze grupos com um total de sessenta bioativos (BAC) relacionados às fontes hidrominerais, de eficácias internacionalmente demonstradas em aplicações curativas ou restauradoras e em cinco critérios de usos. Além disto, confeccionou-se um banco de dados georreferenciados de exemplos no país, contendo informações para as mesmas variáveis BAC anterirores. Sobreposições de mapas temáticos auxiliaram em avaliações geográficas e geológicas e, finalmente, comparações estatísticas filtraram a seleção de alvos. Resultando em 525 municípios com nascentes ou poços possuindo ao menos uma evidencia de BAC. Os argumentos utilizados foram importantes na demonstração da...
Abstract: The natural surrounds and resources wrapping hot or mineral springs belong to sustainable matter involving governance and strategic planning of public health, environment, welfare, tourism and mining sectors. Noted it, through the current Brazilian policy demand: social thermalism/hydrotherapy/crenotherapy selected like complementary alternative medicine (CAM) by health ministry law MS 971/2006 (PNPIC), hydro-thermal therapy qualifying DNPM (MME Ordinance 127/2011 and MME 337/2002), health and wellness tourism formally oriented by tourism ministry and environmental management groundwater resources (Resolution MME / CONAMA 396/2008 and MME / CNRH 107/2010). Whereas as fresh potable reserves or potential mineral aquatic strategic deposits, the main biologically active components (BAC) were identified, with their minimum levels needed to related health benefits. Similar to conventional mining prospection, these "cut off grade" detection, at natural occurrences from Brazil, was the major goal in this work. The bibliographic systematic review allowed identify the main bioactive substances (BAC) related to springs sources of elements enougth or proven as health beneficial and at which indications. Wards after, it was performed a georeferenced database with these same variables (BAC) from Brazilian springs. Overlays all through thematic maps assisted in geographical and geological evaluations, whereas, at the end, statistical comparisons filtered target selection at all. The total 60 possible natural BAC and its minimum values for efficacy globally reviewed and established were detected at least one BAC occurrence from 703 mineral springs at 525 Brazilian cities. The arguments utilized were important in demonstrating the abundant and diverse existence of this endowment, where its potential health applications are virtually unknown today
Doutor
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Brivio, Lara. « Morphodynamic evolution of meandering channels in tidal landscapes : sedimentology and stratal architecture ». Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3427220.
Texte intégralRésumé :
Meandering channels constitute one of the fundamental components of tidal systems, as related tidal point bars are ubiquitous features in lagoonal or estuarine sedimentary successions. Nevertheless, a limited number of studies analyzed their morphodynamic evolution, together with their planimetric shape and morphometric characteristics. Their internal architecture and sedimentary facies distribution are relatively unexplored, and commonly investigated using facies models developed for fluvial meander bends.
Focusing on differences, more than on similarities, between tidal and fluvial meanders, the present work aims at investigating the stratal architecture and sedimentary facies distribution of selected tidal point bars in the Venice Lagoon (Adriatic Sea, Italy). Three main issue were investigate by the present work: i) the role of low order tributaries in controlling the evolution of tidal meander bend; ii) the influence of salt marsh aggradation in shaping geometries of tidal point bars, iii) sedimentary process and morphodynamics changes acting on subtidal point bars. The morphodynamic evolution of tidal channels, and related sedimentary products, were analyzed using a multidisciplinary approach, which comprises the comparison of historical photos, the interpretation of high-resolution sub-bottom profiles, core logging analysis and 3D modelling.
The main results stemmed out form the study sites highlight that: I) lateral tributaries can strongly influence the evolution of bends modifying local mechanisms of sediment and flow distribution; II); the migration of tidal point bars occurs under aggradational conditions both in intertidal and subtidal setting; III) subtidal bars evolve under the strong interaction between wave and tidal currents.I canali meandriformi costituiscono una delle principali componenti dei sistemi tidali e, come le relative point bar, sono una caratteri ricorrenti all'interno delle successioni sedimentarie lagunari. Tuttavia, un numero limitato di studi hanno analizzato l’evoluzione morfodinamica e le caratteristiche morfometriche di canali meandriformi tidali. La loro architettura interna e la distribuzione delle facies sedimentarie sono relativamente inesplorate, e comunemente investigate utilizzando i modelli di facies sviluppati per i meandri fluviali. Concentrandosi sulle differenze, più che sulle similitudini, tra i meandri tidali e fluviali, questo lavoro si propone di investigare le architetture stratali e la distribuzione delle facies sedimentarie delle point bar selezionate nella della Laguna di Venezia (Mare Adriatico, Italia). In questo lavoro vengono affrontate tre problematiche principali: i) il ruolo dei tributari di ordine inferiore nell'evoluzione dei meandri tidali; ii) l’influenza dell'aggradazione delle barene nella modellazione delle geometrie delle point bar tidali; iii) i processi sedimentari e le variazioni morfodinamiche agenti sulle point bar subtidali. L’evoluzione morfodinamica dei canali tidali, e i relativi prodotti sedimentari, sono stati analizzati utilizzando un approccio multidisciplinare, che comprende la comparazione di foto storiche, l’interpretazione di profili sub-bottom ad alta risoluzione, log di carote e modellazione 3D. I risultati principali ottenuti dai tre siti in esame evidenziano che: I) gli affluenti laterali possono influenzare fortemente l’evoluzione dei meandri, modificando i meccanismi locali di distribuzione dei flussi e dei sedimenti; II) la migrazione delle point bar tidali avviene in contesti aggradazionali, sia in ambienti intertidali che subtidali; III) le barre subtidali evolvono sotto l’influenza della forte interazione tra correnti da onde e di marea.
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Hájek, Jan. « Projekt podzemních garáží v Brně ». Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225505.
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The goal of the project is behaviour and dimensioning of selected monolithic concrete structure elements. Design and assessment of the building foundation was made. Slabs of the floors are dimensioned in detail. All computations are made in accordance with Eurocode 2. Drawing documentation is part of this project.
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Van, Noord Kenrick A. A. « Deep-marine sedimentation and volcanism in the Silverwood Group, New England Fold Belt, Australia ». Thesis, Queensland University of Technology, 1999.
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In eastern Australia, the New England Fold Belt (NEFB) comprises an ancient convergent margin that was active from the Paleozoic until the late Mesozoic. Considerable effort has been expended in understanding the development of this margin over the past twenty years. However, proposed tectonic models for the orogen have either been too broad, ignoring contradictory local evidence, or too locally specific without paying attention to the 'big picture'. The research presented in this work addresses the issue of appropriate scale and depth of geological detail by studying the NEFB at the terrane-scale. Using one succession, the Silverwood Group of southeast Queensland, this work demonstrates that detailed sedimentological studies and basin analysis at the terrane-scale can help to refine hypotheses regarding the tectonic evolution of the NEFB.
The Silverwood Group (Keinjan terrane), located approximately 140 km southwest of Brisbane, Australia, is a succession of arc-related basins that developed within an ancient intraoceanic island-arc during the mid-Cambrian to Late Devonian. From the base of the succession, the group consists of five formations totalling -9700 m. These include the Risdon Stud Formation (2500 m), Connolly Volcanics (2400 m), Bald Hill Formation (2450 m), Ormoral Volcanics (600 m) and the Bromley Hills Formation (1700 m). The Long Mountain Breccia Member (300m) is a separate unit which forms the lower part of the Bromley Hills Formation. The entire succession has been thrust west over the Late Devonian to Early Carboniferous Texas beds. Elsewhere, the Silverwood Group is unconformably overlain by and faulted against Early to Late Permian units including the Rokeby beds, Wallaby beds, Tunnel beds, Fitz Creek beds, Eight Mile Creek beds, Rhyolite Range beds and Condamine beds. Of these Permian units, all but the Condamine beds form part of the Wildash Succession. To the west, southwest and south, the Silverwood Group is intruded by the Late Triassic Herries and Stanthorpe Adamellites. All of these sequences and the two plutonic intrusives are unconformably overlain by the Jurassic sediments of the Marburg Sandstone.
The Silverwood Group and Texas beds consist of various lithologies including grey, purple- grey, green and green-grey volcaniclastic conglomerates, sandstones, siltstones or mudstones, massive and laminated chert, polymict or monomict breccias, muddy breccias, muddy sandstones, and volcanic rocks. Volcanic rocks include various tholeiitic metabasites, dolerite, meta-andesites and infrequent metadacite. In the Silverwood Group, these volcanic rocks are often accompanied by mafic pyroclastic rocks (e.g. peperite and hyaloclastite). Facies analyses of these lithologies has led to the recognition of 19 deep-marine turbiditic and volcanic/volcaniclastic facies that were deposited by three main processes: i) gravity-flow processes (e.g. low- and high-density volcaniclastic turbidites and mass-flows), ii) chemical/biological processes (siliceous oozes- chert) and iii) direct initiation by volcanic processes (e.g. flows, hypabyssal intrusions and associated pyroclastic facies).
For the Silverwood Group, the defined facies occur in distinct vertical associations that form recognisable 3rd and 4th-order architectural elements such as channel, levee, suprafan lobe, outer-fan, basin plain, mass transport complex, volcanic flows, syn-sedimentary sills and syn-sedimentary emergent cryptodomes. These architectural elements are represented in a series of deep-marine depositional environments including slope, shelf-edge failure, submarine-fan and subaqueous basaltic volcanoes. The Risdon Stud Formation and parts of the Connolly Volcanics were deposited along a 'normal' clastic or mud, mud/sand-rich and/or sand/mud-rich slope. Both upper and lower slope environments are represented and in both formations, the slope is speculated to have faced eastwards and prograded away from an active arc located west. Sediments from both successions accumulated at palaeodepths of 1200 to 2000 m.
Although sediments from the upper part of the Bald Hill Formation were also deposited on a slope, these sequences have subsequently collapsed into the depocentre to form extensive slump deposits accompanied by olistoliths of older arc crust. The lower part of the Bald Hill Formation formed by similar processes, although the failure was far more extensive (>20 km along strike). This latter part of the formation is interpreted to be a major shelf-edge failure succession. Upper parts of the Bald Hill Formation also accumulated at palaeodepths of 1200 to 2000 m, but the deposition of these sediments occurred farthest from the shelf and at the greatest depth compared to the Risdon Stud Formation and Connolly Volcanics. Lower parts of the Bald Hill Formation were deposited at palaeodepths of approximately 1700 m.
Subaqueous basaltic volcanoes are prominent in the Connolly Volcanics, Bald Hill Formation and Ormoral Volcanics. In the Bald Hill Formation, igneous rocks were emplaced into the shelf-edge failure succession as a series of syn-sedimentary sills and cryptodomes. These high-level hypabyssal rocks occasionally became emergent above the sediment-water interface, whereupon they were partially resedimented. In some parts of the Bald Hill Formation, the hypabyssal intrusions were blanketed by basin plain deposits that are contemporaneous with the slumps and olistoliths in the upper part of the formation. The intrusive rocks were emplaced at 1700 m palaeodepth.
Unlike the Bald Hill Formation, the Ormoral Volcanics and lower parts of the Connolly Volcanics form thick accumulations of extrusive volcanic and pyroclastic rocks that built a significant volcanic pile. Volcanic and pyroclastic facies within these successions were deposited proximal to their source (0-10 km of vent). Extrusive rocks within the Ormoral Volcanics are thought to be derived from intrabasinal fissure-vents located at palaeodepths of 1700 to 3100 m. Igneous rocks from the Connolly Volcanics, Bald Hill Formation and Ormoral Volcanics have the petrological and geochemical characteristics of back-arc basin basalts (BAB) that were sourced from undepleted to slightly enriched Fertile MORB Mantle-wedge (FMM). The FMM material was variably enriched in trace elements by fluids derived from the subducting slab prior to emplacement of the igneous rocks. Immediately following emplacement, these rocks were hydrothermally metamorphosed under conditions of low-pressure and transitional low to high-temperature (200-300 °C). By contrast, igneous rocks within the Texas beds lack enrichment in subduction components and are characteristic of N-MORB.
The Bromley Hills Formation is a sand-rich point-source submarine fan deposited at palaeodepths of 500 to 2000 m. The fan was initiated by a mass transport complex resulting from subaerial collapse of a basaltic-andesitic stratovolcano. The submarine fan is characterised by two repetitive stages of retrogressive sedimentation during which channel-levee elements (inner-fan channels) are overlain by suprafan lobe elements (mid-fan) and then by outer-fan deposits as sea-level rises within the depocentre. Both inner-fan channels and suprafan lobes show centralised stacking patterns with limited lateral migration that indicate the depocentre was laterally restricted during sedimentation (e.g. submarine ridges). The Bromley Hills Formation exhibits all the characteristics typical of an active margin fan that formed by a combination of tectonic stage initiation followed by eustatically controlled regressive deposition.
Volcaniclastic sediments of the Silverwood Group range in composition from lithic to lithic- feldspathic wackes and arenites, although they are mainly lithic or feldspathic-lithic wackes and arenites. Many samples are tuffaceous (25-75% pyroclasts), particularly those from the Connolly Volcanics, Ormoral Volcanics and Bromley Hills Formation. Samples in the Bald Hills Formation and Texas beds can be classified as quartz-rich. The majority of the Silverwood Group was sourced from an undissected intraoceanic island-arc, although sediments within the Bald Hill Formation exhibit a provenance that is characteristic of uplift within the arc (recorded as a 'strike-slip continental arc' model). Epiclastic sediments from the Texas beds were sourced from a transitional to dissected continental arc.
Formations of the Silverwood Group were mostly deposited in a series of intra-arc basins within an ancient intra-oceanic island arc, although the lowermost formation developed in a marginal basin (Risdon Stud Formation). All of the basins were located east of the active arc (behind the arc), keeping in mind the present location of the Group relative to the Texas-Coffs Harbour megafold. The entire succession formed during four-phases of arc-related basin development that coincide with major changes in the strain regime of the arc. From the base of the succession, these changes are: I) mid Cambrian to late Silurian marginal basin sedimentation- relative compression within the arc (Risdon Stud Formation), II) late Silurian to Early Devonian intra-arc rifting- relative extension within the arc (Connolly Volcanics), Ill) Early to early Middle Devonian basin collapse followed by intra-arc rifting- relative extension to compression (Bald Hill Formation and Ormoral Volcanics) and IV) early Middle to Late Devonian intra-arc submarine fan sedimentation- relative compression (Bromley Hills Formation).
Comparing the Silverwood Group against equivalent terranes of Cambrian to Devonian age within the New England Fold Belt (NEFB) suggests that the Gamilaroi terrane, Calliope Volcanic Assemblage, Willowie Creek beds and Silverwood Group all formed as one intraoceanic island-arc during the Early to Late Devonian. Prior to this, significant differences in the sedimentological evolution of these terranes suggests that they occupied different positions relative to each other within the one arc. It is proposed that the NEFB formed as a result of dual west-directed subduction zones during the Cambrian to Middle Devonian period. During this time, a single intraoceanic island-arc located seaward of the Australian craton developed above a west-directed subduction zone. This arc was separated from the craton by a marginal sea. A second west-directed subduction zone was located beneath a continental arc developed on the Australian craton. Cambrian to Early Devonian terranes within and along the Peel Fault are proposed to form a part of the ancient subduction zone present beneath the intraoceanic island-arc (Weraerai and Djungati terranes). Collision of the intraoceanic island-arc occurred during the Late Devonian, at which point west-directed subduction occurred beneath the Australian craton and the accreted intraoceanic island-arc. Following collision, a new continental volcanic arc was established that was active during the Late Devonian to Early Carboniferous.
Livres sur le sujet "Geological bar"
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Shan gu de feng he kuang bao de yu : Xin Zhongguo di kan ye de cheng yong guo cheng he hua die wen ti. Beijing : Di zhen chu ban she, 1999.
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Mruma, A. H. Historia ya wakala wa jiologia Tanzania : Miaka 50 ya uhuru Tanzania bara. Dodoma, Tanzania : Geological Survey of Tanzania, 2011.
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Konigsmark, Ted. Geologic trips : San Francisco and the Bay Area. Gualala, Calif : GeoPress, 1998.
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Di zhi yi chan bao hu yu kai fa : Study on the geological heritage's protection and exploitation. Wuhan Shi : Zhongguo di zhi da xue chu ban she, 2011.
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Peiser, Benny Josef. Natural Catastrophes During Bronze Age Civilisations : Archaeological, Geological, Astronomical and Cultural Perspectives (Bar International Series). British Archaeological Reports, 1998.
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Livermore, Roy. Poles Apart. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198717867.003.0004.
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In just a few years, the magnetic bar-code secreted beneath the world’s oceans had provided detailed intelligence on the motions of the plates. When combined with other data from the sea floor, this allowed geophysicists to reconstruct the history of entire ocean basins following the rifting of Pangea. Some folk, however, are never happy, and ‘glass-half-empty’ types might well have complained that, impressive as all this was, it accounted for less than 200 million of the 4500 million years of Earth history, i.e. just 4%. What about that other 96%? Did plate tectonics operate through part or all of this long history and, in any case, how could you ever know, since the evidence had all been shredded by the closure of earlier oceans? There was hope: the same process that had so conveniently sequestered the recent history of the plates in the sea floor had also been at work throughout much of earlier geological time, recording the story in rocks onshore. By comparison with the high-definition picture of plate motions offered by bar-codes and fracture zones, this recording was monochrome, fuzzy, and incomplete. Yet, by the mid-1950s, it had already provided conclusive evidence that continents were truly mobile. Curiously, hardly anyone noticed.
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Konigsmark, Ted. Geologic Trips : Sierra Nevada. Bored Feet Publications, 2003.
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Cvancara, Alan M. Bare Bones Geology : For the Geologically Challenged. Trafford Publishing, 2006.
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Geologic map of the Gold Bar Canyon quadrangle, Grand County, Utah. Utah Geological Survey, 1994. http://dx.doi.org/10.34191/m-155.
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Geologic map of the Gold Bar Canyon quadrangle, Grand County, Utah. Utah Geological Survey, 1991. http://dx.doi.org/10.34191/ofr-230.
Texte intégralChapitres de livres sur le sujet "Geological bar"
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Hartkamp-Bakker, C. A., et M. E. Donselaar. « Permeability Patterns in Point Bar Deposits : Tertiary Loranca Basin, Central Spain ». Dans The Geological Modelling of Hydrocarbon Reservoirs and Outcrop Analogues, 157–68. Oxford, UK : Blackwell Publishing Ltd., 2009. http://dx.doi.org/10.1002/9781444303957.ch9.
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Poag, C. Wylie, Christian Koeberl et Wolf Uwe Reimold. « Geological Framework of Impact Site ». Dans The Chesapeake Bay Crater, 41–72. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18900-5_2.
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Poag, C. Wylie, Christian Koeberl et Wolf Uwe Reimold. « Geological Consequences of Chesapeake Bay Impact ». Dans The Chesapeake Bay Crater, 287–300. Berlin, Heidelberg : Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18900-5_9.
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Howard, Gary C., et Matthew R. Kaser. « Geological Forces that Built San Diego Bay ». Dans Making and Unmaking of San Diego Bay, 7–22. Boca Raton : CRC Press, 2021. http://dx.doi.org/10.1201/9780429487460-2.
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Sydnor, Robert. « Geologic hazards ». Dans Geology of San Francisco and Vicinity : San Francisco Bay Region, California : July 1–7, 1989, 35–38. Washington, D. C. : American Geophysical Union, 1989. http://dx.doi.org/10.1029/ft105p0035.
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Barazangi, Muawia, Eric Fielding, Bryan Isacks et Dogan Seber. « Geophysical and Geological Databases and CTBT Monitoring : A Case Study of the Middle East ». Dans Monitoring a Comprehensive Test Ban Treaty, 197–224. Dordrecht : Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-0419-7_15.
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Billingsley, George H., et Donald P. Elston. « Geologic log of the Colorado River from Lees Ferry to Temple Bar, Lake Mead, Arizona ». Dans Geology of Grand Canyon, Northern Arizona (with Colorado River Guides) : Lee Ferry to Pierce Ferry, Arizona, 1–36. Washington, D. C. : American Geophysical Union, 1989. http://dx.doi.org/10.1029/ft115p0001.
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Nguyen, Lan Chau, Tuan-Nghia Do et Quoc Dinh Nguyen. « Characteristics and Remedy Solutions for a New Mong Sen Deep-Seated Landslide, Sapa Town, Vietnam ». Dans Progress in Landslide Research and Technology, Volume 1 Issue 2, 2022, 403–13. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18471-0_29.
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AbstractLandslides govern the evolution of landforms and pose a serious threat across the globe, especially in mountainous areas. In the northwestern area of Vietnam, a deep-seated landslide occurred near the new Mong Sen bridge in Trung Chai commune, Sapa town, Laocai province. In October 2020, some serious cracks were observed above a natural slope near a road, which was under construction to connect the Noi Bai-Laocai highway to Sapa town. The crack area was divided into two zones. Since this phenomenon could not only cause loss of life but also damage to the properties located downhill, the construction was stopped until the slope was rehabilitated. In this study, geological investigations, laboratory tests, and stability analysis were conducted to understand the failure mechanism. The analysis results showed that cutting activities during the construction of the road contributed to the sliding of the sloping soil mass. The following rehabilitation works at the failed area were conducted: (1) removing the soil above the natural slope; and (2) constructing the retaining system, including ground anchors and soil nails to retain the remaining slope. Results of stability analysis demonstrated that the retained slope would be stable after treatment.
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Wiggers, Raymond. « The Loop ». Dans Chicago in Stone and Clay, 75–100. Cornell University Press, 2022. http://dx.doi.org/10.7591/cornell/9781501765063.003.0007.
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This chapter focuses on the architecture and design of buildings along the Southeastern Quadrant of the Chicago Loop. The Chicago Bar Association's headquarters may be tucked into one of the Loop's more easily overlooked crannies, but it is brimming over with geologic significance, especially when it featured limestone, concrete, Buddusò Granite, concrete, and aluminum. The chapter elaborates on the design and geological features of the Loop's buildings, such as The Alfred and Auditorium Building. The Harold Washington Library Center's sources of bricks remain unknown. However, the building has interesting uses of decorative stones known as the Carrara Marble, which is now known to be the world's most famous and sought-after marble.
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Ernst, W. G. « Accretionary terrane in the Sawyers Bar area of the Western Triassic and Paleozoic Belt, central Klamath Mountains, northern California ». Dans Geological Society of America Special Papers, 297–306. Geological Society of America, 1990. http://dx.doi.org/10.1130/spe255-p297.
Texte intégralActes de conférences sur le sujet "Geological bar"
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Nejadi, Siavash, et Stephen M. Hubbard. « Measuring Connectivity in Complex Reservoirs : Implications for Oil Sands Development ». Dans SPE Canadian Energy Technology Conference. SPE, 2022. http://dx.doi.org/10.2118/208927-ms.
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Abstract The Lower Cretaceous McMurray Formation in the Athabasca Oil Sands consists of channel belt deposits formed from meandering river systems. Large-scale fluvial point bars and other components of meander-belts compose this heterogeneous formation and are the source of complex sedimentary facies relationships. Recognition and correct interpretation of the spatial facies distribution, hence connectivity of the reservoir system, is essential to optimal field development and project economics. It is, therefore, crucial to understand river depositional processes, link associated facies to connectivity metrics, and implement them in flow modelling for hydrocarbon exploration. In the geological modelling phase, we analyzed data collected through high-density drilling, extensive coring, and three-dimensional (3D) seismic to map the internal stratigraphic architecture for different reservoir levels. The model captures the 3D representation of different depositional elements, including point bars, counter point bars, side bars, and abandoned channel fills. The deterministic interpretations constrain the stochastic simulation of the reservoir parameters, and distinct morphology, facies associations, and reservoir potential characterize the zones. Our workflow improves the geological realism of subsurface models and allows quantitative analysis of the spatial uncertainty. Including depositional bedding geometries in the modelling helps reduce uncertainties in net continuous bitumen estimations. It improves the knowledge of reservoir connectivity and compartmentalization. The ultra-defined model provides the framework for detailed analysis and optimal field development. This paper presents a new computationally efficient measure for connectivity based on detailed geological interpretations and mapping inclined heterolithic strata (IHS) in point bar deposits. In the calculations, we account for: facies distributions, porosity, permeability along the principal flow axis, and oil saturation,pressure and elevation (potential energy gradients),well locations, andtortuosity of the fluid flow streamlines. To evaluate the effect of sedimentary heterogeneities on key reservoir performance indicators, we formulate the reservoir connectivity as a mathematical optimization problem and estimate the flux in the connected porosity. Applying the methodology on a point-bar deposit shows that the connectivity factor strongly correlates with the ensuing recovery responses. This novel, computationally inexpensive approach captures the uncertainty in reservoir rock distributions and provides a quick and practical measurement for decision-making in reservoir management problems. Its features enable evaluating multiple reservoir parameters and using Monte Carlo techniques to quantify uncertainty and risk propagation in the presence of geological uncertainty to rank field portfolios. In the SAGD examples, the method estimates steam chamber development and conformance with high confidence, supporting optimal well placement for new development wells and infill drilling, optimizing the well spacing and orientation.
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Maulana, A. D. « Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment ». Dans Indonesian Petroleum Association - 46th Annual Convention & Exhibition 2022. Indonesian Petroleum Association, 2022. http://dx.doi.org/10.29118/ipa22-g-117.
Texte intégralRésumé :
The common issue that arises in geological modeling is the limited ability of the data to describe the spatial and vertical circumstances of facies and subsurface sediment deposits. Vertically, well data is high-resolution data that can describe one-dimensional objects in detail. On the other hand, seismic data can describe three-dimensional conditions but has a resolution bandwidth that is distant below the well data. Therefore, this study offers an integration method that can increase the seismic frequency to approach the ideal frequency to separate geological facies events vertically and laterally. The method used is Spectral Blueing, which will then be visualized using RGB and HSV Blending from the input data in the form of Spectral Decomposition. Spectral Blueing aims to increase the dominance of Blue Spectrum by analyzing the slope spectrum of the well data, bandpassing, and analyzing the deconvolution operator. In this method, the spectrum of the well data is used to examine the slope of the blue spectrum component, which is absent in the seismic data. This process produces a deconvolution operator that plays a part in increasing the blue spectrum area. Thus, geological events in the red, green, and blue spectrum are not muted or dominant. The entire frequency range of seismic data can maximally indicate geological anomalies and separate thin layers. The results are then analyzed on the AOI Horizon for specific spectral decomposition. Using the Continuous Wavelet Transform (CWT) method, several seismic energy cubes from the spectral decomposition are generated. Specific frequencies include 34, 42, 56, 63, 75, and 80 Hz. Each of these specific spectra carries different geological information. The separation of these anomalies aims to obtain specific and accurate dominant frequencies in each formation. The six dominant frequencies obtained from the spectrogram analysis will be input parameters for the graphic visualization process using RGB and HSV blending. The RGB method will provide an overview of geological features, while the HSV method will produce visualizations that still show the energy effects of seismic data. Several combinations of color blending visualizations of six specific frequencies are used to map and define the distribution of geological event anomalies printed in real terms and printed in the form of shadows. It is recorded right in the formation and zone of interest. While printed in a shadow is a pseudo-event anomaly, noise, or multiple events that are also recorded not in the actual formation. The final result of this method is a facies model with a more reasonable level of confidence and has been filtered using geological and geophysical concepts based on seismic data with an even dominance in each frequency range. The characterizations of facies found using this method include channel sand, point bar and point bar scroll, overbank or floodplain, chute channel, and abandoned channel. The results have also been validated using well data and local, and regional geology.
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Zuta, John, Kåre Olav Vatne, Reza Askarhinade, Jan Erik Iversen, Arild Lohne, Mohammed Mousa Al-Noth, Ali Mehrabi et Nicolas Thompson. « CO2 Caprock Threshold Pressure Measurements for the Northern Lights Reservoir ». Dans SPE Norway Subsurface Conference. SPE, 2022. http://dx.doi.org/10.2118/209527-ms.
Texte intégralRésumé :
Abstract Assessing the representative threshold capillary property of a reservoir formation is very important in the context of reservoir production, basin modeling and geological storage. The long-term safety of CO2 storage is highly dependent on the permanent sealing capacity of the cap rock. As part of the Northern Lights CO2 storage project, Equinor with partners Shell and TotalEnergies, in Q1 2020 drilled well 31/5-7 in exploitation license EL001 southwest of Troll A in the northern part of the North Sea. The objective of the well was to investigate whether the formations in the Lower Jurassic Dunlin Group (Cook and Johansen storage formations and Drake Formation cap rock) are suitable for storage of CO2. In this work, laboratory experiments were used to determine the CO2 cap rock threshold pressure for reservoir core material from well 31/5-7. The experiments were performed at reservoir conditions, 260.5 bar and 83.5°C. Prior to the tests, the permeability to water was measured to be in the nano Darcy range. The dynamic method for measuring the threshold capillary pressure relies on establishing a flow of water through the plug before CO2 reaches the plug's surface. Due to the low permeability of the plugs, the amount of water that must be displaced before CO2 contacts the plug's surface was kept low from the inlet. Thus, if CO2 contacts the plug's surface at a pressure below the threshold value, the water production should stop. The onset of water production from the outlet will define the threshold pressure, as CO2 will flow into the plug once the threshold pressure is exceeded. The CO2 pressure was gradually increased stepwise up to a maximum of 360.5 bar over 4 weeks. The capillary threshold pressure for CO2 was measured for three plugs and was in the range 30 - 50 bar above the pore pressure of the reservoir at reservoir conditions. However, should the aquifer pressure exceed this value, the containment of CO2 below the Drake formation is ensured by its very low permeability (few tens of nD) that will preferentially drive the CO2 horizontally within the storage formations rather than vertically through Drake formation. No values were obtained within the time frame of the experiments for the two remaining plugs. The plugs were exposed to an injection pressure of 360 bar, 100 bar above the pore pressure, and no entry was observed. Thus, the minimum capillary pressure is expected to be greater than 100 bar for these two plugs.
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Ma, L., C. Lu, J. C. Guo, Y. C. Wang, Z. X. Jiang, B. G. Chen, Y. L. Zhou et al. « Study on the Optimization of the Integrated Process Parameters of Fracturing and Flooding in Beach Bar Sand Reservoir ». Dans 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0534.
Texte intégralRésumé :
ABSTRACT The beach bar sand reservoir has the characteristics of low porosity and permeability, multiple thin layers and strong vertical heterogeneity. In recent years, the integrated technology of fracturing and flooding has been put forward. Based on the geological model of injection-production well group, optimization of water injection parameters of fracturing-flooding and the optimization of production well fracture parameters under the condition of fracturing and flooding are carried out in the stimulation of beach bar sand reservoirs. The research results show that optimizing the water injection volume of fracturing-flooding based on numerical simulation is 50000∼100000 m3, and the water injection rate of fracturing-flooding is 0.7∼0.9 m3/min, which can reduce the risk of production well water channeling and achieve the goal of balanced water injection. Then, the front edge of water injection in fracturing-flooding is determined by analyzing the sweep area of fracturing water injection. Based on the well spacing and ultimate flow distance of low permeability reservoirs, the half length of fractures in different types of production wells was optimized. The research results can effectively guide the economic and efficient development of beach bar sand reservoirs under the condition of fracturing-flooding and water injection. INTRODUCTION Bin435 block of Shengli Oilfield is located in Binzhou City, Shandong Province. It is structurally located in the west slope of Lijin depression. Oil layers are drilled in the upper S4 sub-member of Shahejie Formation. The area of the work area is 1.23 km2 and the crude oil reserves are 208 × 104 t. The upper sub-member of the target layer of Shahejie Formation consists of 1∼4 sand formations, with a buried depth of about 2700∼2900 m. It is a beach bar sand deposit with sand and mud interbedding. The sandstone is mostly gray or light gray siltstone, argillaceous siltstone and calcareous siltstone. The mudstone is gray or sandy and mainly gray. The overall structural feature is a monoclinic structure complicated by the fault layer. The average porosity of the reservoir in this block is 14.6%, and the average permeability is 6.2 × 10−3 D. There are many small oil-bearing layers with a longitudinal span of 150 m, the average thickness of the sand body is small, the single-layer protrusion coefficient is large, and the vertical and horizontal heterogeneity is strong. It belongs to the typical low porosity and low permeability beach bar sand reservoir (Shao, 2012).
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Mathieu, Ph, R. Dubuisson, S. Houyou et R. Nihart. « New Concept of CO2 Removal Technologies in Power Generation, Combined With Fossil Fuel Recovery and Long Term CO2 Sequestration ». Dans ASME Turbo Expo 2000 : Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0160.
Texte intégralRésumé :
In this paper, the mentioned cycle has been transformed in a CO2 regenerative Ericsson-like cycle and therefore is named E-MATIANT. The removed CO2 can still be available at a pressure higher than the critical one (73 bar). When optimising the cycle, the calculated optimum pressure will be around 60 bar; this makes the technical issues easier to deal with than when using a supercritical fluid, namely the material strains and corrosion behavior. A sensitivity analysis is performed with respect to the CO2 delivery pressure in order to evaluate the performance changes. The fuel flexibility is an important asset of the newly designed cycle: mixtures of CO and H2 produced either in gasification or steam reforming processes can indeed be burnt in the combustion chamber. In a future work, the combination of a solid oxide fuel cell (SOFC) and this cycle both fed by a CO and H2 mixture will be considered as an option for the improvement of the global efficiency. If not fixed in a chemical or biological system, the delivered CO2 can be used in industry or in the enhancement of fossil fuels recovery from their deposits, with a marginal compression consumption work. In this paper, CO2 injection is used to enhance methane recovery from coal seams by some 20 to 30%, in comparison with water pumping. The depleted seam can afterwards be used as the host site for long run CO2 sequestration. As a conclusion, the combination of quasi-zero emission power plants with CO2 geological storage and enhanced fuel recovery provides a CO2 flow, otherwise considered as a waste or a byproduct, with an exergetic and a commercial added value. This makes this option a serious alternative to other CO2 control technologies.
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Peat, Stephnie, David Jones, Daniel Boyde, Dario Frigo, Gordon Graham, Tuyet-Hang Le-Goff et Frederic Lagarde. « Innovative Dynamic Laboratory Testing Methods and Workflow for Evaluating and Mitigating Carbon Dioxide Injection Challenges in Geological Storage Prospects ». Dans ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210811-ms.
Texte intégralRésumé :
Abstract Most emerging techniques for laboratory evaluation of CCUS projects refer to traditional geoscience core analysis methods of porosity, permeability, mineralogy, caprock integrity, etc. However, analytical programs must go beyond typical oil & gas exploration and production reservoir evaluation workflows/ methodologies when assessing injectivity impairment and measures to control it. Introducing enormous quantities of an inherently incompatible fluid into a geological storage prospect introduces a set of different challenges from those encountered during the reservoir fluid production cycle. This work aims to raise awareness of one of the key operational challenges related to CO2 injection in saline aquifers or depleted hydrocarbon reservoirs and provides a new approach to assessing injectivity impairment. Core flooding apparatus was used to measure permeability changes during injection of liquid carbon dioxide to demonstrate the effect of the formation of CO2 hydrates on injectivity of CO2 and brine into a porous core medium. The work required design of a new test rig and approach for the range of conditions expected during CO2 injection into deep saline (high pressure) reservoirs and depleted gas reservoirs (low pressure) which will be discussed. Controlled, repeatable generation of the damage also enables preventive and remedial measures to be evaluated, including the performance of chemical inhibitors. Initial testing of the apparatus involved cycling injection through the hydrate formation window by varying temperature while flowing brine and CO2 into a core. Severe blockages were formed whereupon specific pressure and temperature trajectories were applied to differentiate hydrates formation from that of ice. This paper presents new laboratory equipment for the dynamic assessment of CO2 injection into underground storage reservoirs, determining under which specific operating conditions for CO2 injectivity can be impaired due to formation of hydrates, ice, scale, etc. This apparatus and the associated workflow surpass the existing methods outlined in literature which mostly rely on static measurements of fluids rather than dynamic measurements in reservoir core, which is much more representative of the field scenario for geological carbon storage. In addition to hydrate formation assessment, this equipment has also been used to investigate various other formation-damage mechanisms, including the formation of inorganic scales and ice, across a range of formation water compositions, saturations, temperatures (-25 to +30 °C), and pressures (< 400 bar). Varying the input parameters, including the initial brine salinity enables the locus of CO2 hydrates to be established in this porous medium as well as determining their formation kinetics and likely plugging mechanism, inferred from flow-rate dependence. Reproduction of injectivity impairment under a variety conditions, saturations and flow rates demonstrates the ability to form, dissipate, and reform scales and hydrates within a porous medium, and thus the potential to test inhibition performance.
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Sun, Ziting, et Huazhou Li. « Phase Behavior Modeling for Carbon Dioxide/Brine Mixtures Using PR EOS and Huron-Vidal Mixing Rule ». Dans ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-80010.
Texte intégralRésumé :
Abstract Accurately predicting CO2 solubility in saline aquifers is very important for CO2 capture and storage. A reliable and accurate thermodynamic model is needed to predict the phase equilibrium of the CO2+brine systems over a wide range of temperature, pressure, and molality. In this study, a cubic-EOS-based thermodynamic model is presented to predict the phase equilibrium of CO2+brine mixtures. Peng-Robinson equation of state and Huron-Vidal mixing rule are applied to predict the phase behavior of CO2+brine systems containing salt species including NaCl, KCl, CaCl2, and MgCl2. Binary interaction parameters for specific CO2+single-salt+H2O systems are established as functions of temperature and salt molality. To investigate the impact of multiple salts mixtures on CO2 solubility in brine solutions, the model is extended to CO2+mixed-salt+H2O systems under the practical geological conditions (273–550K, 0–800 bar, 0–6 mol/kg). PR EOS with a modified BIP model in the HV mixing rule is implemented to capture the phase compositions in vapor-liquid equilibria (VLE). The collected experimental data are used to determine the optimal BIP model. Comparison of the experimental data and the computed data indicates that the average absolute deviation (AAD) in reproducing the CO2 concentration in the mixed-salt brine is 0.0015. Compared to other state-of-the-art models in the literature, the new model can more accurately predict the VLE of CO2+brine systems over a large temperature, pressure, and molality range.
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Wu, Ivan Zhia, Sarvagya Parashar, Banu Andhika, Susan Syahdina, Arrie Kurniawan, Yoga Wismoyo et Muhammad Ardhyan Jannatan. « Sand Body Trend Delineation Decrypting from Stratigraphic Dip Pattern Analysis : Case Study within a Fluvio-Deltaic Setting, East Kalimantan, Indonesia ». Dans International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21466-ms.
Texte intégralRésumé :
Abstract During field development, a detailed understanding of reservoir geometry and associated sedimentary features within the sand sequence plays an important role in the effective recovery of hydrocarbon resources. Most aging fields encounter the common problem in well placement for effective production of the remaining hydrocarbon resources. The current example—onshore formation from Late Miocene in East Kalimantan—includes seismic data acquired during the 1970s and 1980s. Considering advancements and breakthroughs provided by current technology, the older information could provide a greater level of subsurface uncertainty. Geological challenges include comprehending geometry prediction and the continuity of the amalgamated distributary reservoir channels and the depositional architecture within a fluvio-deltaic environment in a structurally complex field. High-density borehole microresistivity image data from several wells in the study area were acquired to constrain and reduce the geological uncertainty resulting from poor control of subsurface imaging through the surface seismic data. Microresistivity imaging data were used to identify sedimentary features and to perform electrofacies analysis. The data are used for the structural reconstruction of sequences by decoding a different order of structural deformation and reconstructing the sediment transport direction at the time of deposition. The results are then incorporated within the regional geology context in the basin. The consistent shale/silt beddings in the studied wells indicate an overall structural dip trend of 10° toward the east. The structural deformation within the same section of these wells is identified by the characteristics in the rotation of the structural dips. This suggests the proximity of these wells in relation to the deformation plane of sub seismic features and helps refine the structural maps. During a later phase, the reservoir is correlated within the wells, and careful selection of a palaeocurrent indicator is established from the vertical distribution of the sedimentary beddings for paleogeography reconstruction. Based on this, the channel complex dispersal direction was observed to exhibit an overall easterly direction with complex migration, and the identified mouth bar sequences reveal more widespread geometry. The dispersion or variations observed in the studied wells are then correlated to the overall reservoir architecture within fluvio-deltaic settings. The case study demonstrates the applications of borehole microresistivity data and their importance in providing a high-resolution well-to-well correlation for sand body delineation within the targeted sequences. The results provide details about the structural complexity in the underlying subsurface litho-sequence and illustrate how behaviors change laterally from one well to another. This analysis helps develop a high-resolution geocellular model for the field.
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Bacchi, Luca, Marco Medoro et Giampaolo Annoni. « Ranking Models for Managing the Integrity of Ageing Pipelines ». Dans 2022 14th International Pipeline Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/ipc2022-87195.
Texte intégralRésumé :
Abstract SNAM operates more than 29,000 km of gas transmission pipelines in Italy. The pipelines have diameters up to 56″, with different MAOP up to 75 bar. The oldest ones were built in the 40s and new ones are nowadays under construction. Italy, like most of the European countries, is characterized by a high level of anthropic presence on the territory; moreover, many pipelines cross the country from south to north, passing through the Appennini mountains, where there are many areas with geological instabilities (landslides). Different pipelines can have different features, issues and challenges, but, for all of them, the TSO must guarantee a high level of safety in terms of structural integrity. In such a scenario, a TSO must tackle many questions in order to properly manage the integrity of its pipelines that compose the complex asset that is the whole network: where do I need to do local actions? Is there any pipeline that is convenient to totally replace? Which ones of the existing unpiggable pipelines should I invest to make piggable? Is there a way to establish the priorities for all these actions? SNAM built two tools to prioritize such actions on all its pipelines: the first tool is a model able to produce a ranking of all the pipelines as a function of the technical convenience for their replacement, the second tool is a model that produce a ranking of all the pipelines as a function of the technical convenience to make them piggable. Both the models provide numerical and objective tools, based on technical local data of the pipelines and of the territorial context, that can be applied at once to the whole network and that help the TSO in the strategical decision making oriented to the best management of the integrity of the ageing asset.
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Serpescu, Irina. « 3D GEOLOGICAL MODEL OF BUCHAREST CITY QUATERNARY DEPOSITS ». Dans 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v2/s02.001.
Texte intégralRapports d'organisations sur le sujet "Geological bar"
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Dafoe, L. T., et N. Bingham-Koslowski. Geological synthesis of Baffin Island (Nunavut) and the Labrador-Baffin Seaway. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/314542.
Texte intégralRésumé :
The Labrador Sea, Davis Strait, and Baffin Bay offshore regions, collectively referred to as the Labrador-Baffin Seaway, and their onshore margins including Baffin Island, Bylot Island, and West Greenland, form a region with a complex geological history developed through successive tectonic events. This complex geological and tectonic history is described in detail in this volume, a collaborative undertaking under the Geological Survey of Canada's Geo-mapping for Energy and Minerals 2 program (GEM-2), with contributions from external partners. Knowledge from pre-existing studies, essential contributions from collaborators, and GEM research results have been incorporated into the 14 papers contained in this volume, which summarize previous geological and geophysical knowledge and include novel insights from a regional perspective that serve as a guide for future research and exploration activities. The papers in the volume highlight both onshore and offshore studies in order to produce a comprehensive synopsis of the geological history of the region, with corresponding high-resolution reference maps and figures, and select GIS data sets. This compilation is divided into sections covering Precambrian and Paleozoic geology, Mesozoic to present geology, and resources within the region.
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Dafoe, L. T., et N. Bingham-Koslowski. Baffin Island and the Labrador-Baffin Seaway GIS data. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330200.
Texte intégralRésumé :
The Labrador Sea, Davis Strait, and Baffin Bay offshore regions, collectively referred to as the Labrador-Baffin Seaway, and their onshore margins including Baffin Island, Bylot Island, and West Greenland, form a region with a complex geological history developed through successive tectonic events. This complex geological and tectonic history is described in detail in this volume, a collaborative undertaking under the Geological Survey of Canada's Geo-mapping for Energy and Minerals 2 program (GEM-2), with contributions from external partners. Knowledge from pre-existing studies, essential contributions from collaborators, and GEM research results have been incorporated into the 14 papers contained in this volume, which summarize previous geological and geophysical knowledge and include novel insights from a regional perspective that serve as a guide for future research and exploration activities. The papers in the volume highlight both onshore and offshore studies in order to produce a comprehensive synopsis of the geological history of the region, with corresponding high-resolution reference maps and figures, and select GIS data sets. This compilation is divided into sections covering Precambrian and Paleozoic geology, Mesozoic to present geology, and resources within the region.
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Lavoie, D., N. Pinet, S. Zhang, J. Reyes, C. Jiang, O. H. Ardakani, M. M. Savard et al. Hudson Bay, Hudson Strait, Moose River, and Foxe basins : synthesis of Geo-mapping for Energy and Minerals program activities from 2008 to 2018. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/326090.
Texte intégralRésumé :
As part of its Geo-mapping for Energy and Minerals program, the Geological Survey of Canada included the Hudson Bay Basin in its research portfolio with the goal of generating a modern understanding of its geological framework and a precise knowledge of its hydrocarbon systems. The Hudson Bay-Foxe Basins GEM-1 project led to the proposal of modern stratigraphic frameworks and produced extensive geochemical data on hydrocarbon source rocks as well as data on diverse burial-thermal indicators. Satellite data were acquired over the entire offshore domain in the search for evidence for active hydrocarbon systems. For the Hudson-Ungava GEM-2 project, the aim of the research activities was to better understand local and regional factors associated with the burial and exhumation histories as they pertain to regional or local hydrocarbon prospectivity. This research led to a basin-scale stratigraphic framework coupled with detailed analyses of hydrocarbon generation and the appraisal of the best potential reservoir units.
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Lavoie, D., K. Dewing, M. Bringué, K. M. Fallas, R. Fensome, S A Gouwy, T. Hadlari et al. Introduction et sommaire. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/331203.
Texte intégralRésumé :
The Geo-mapping for Energy and Minerals (GEM) program (2008-2020) of the Geological Survey of Canada made important contributions to the understanding of northern sedimentary basins in the Canadian Arctic Islands, Hudson Bay, and the mainland Northwest Territories. The goal of the program was to advance the geological understanding of the Canadian north, which the exploration industry and northern communities could then use for decision-making related to exploration and development. The most important advances are outlined in the papers in this volume and summarized in this introductory paper. In each area, improvements in the stratigraphic understanding gained through fieldwork help researchers decipher paleoenvironments, thickness variations, timing of nondeposition, and timing of erosion. These in turn allow for improved understanding of the tectonic history of each area. GEM projects produced a vast array of products, from geological and geophysical maps and geochemical data to peer-reviewed scientific papers. Reference to the most important of these products is made in the individual papers.
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Lavoie, D., K. Dewing, M. Bringué, K. M. Fallas, R. Fensome, S A Gouwy, T. Hadlari et al. Introduction and summary. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/326075.
Texte intégralRésumé :
The Geo-mapping for Energy and Minerals (GEM) program (2008-2020) of the Geological Survey of Canada made important contributions to the understanding of northern sedimentary basins in the Canadian Arctic Islands, Hudson Bay, and the mainland Northwest Territories. The goal of the program was to advance the geological understanding of the Canadian north, which the exploration industry and northern communities could then use for decision-making related to exploration and development. The most important advances are outlined in the papers in this volume and summarized in this introductory paper. In each area, improvements in the stratigraphic understanding gained through fieldwork help researchers decipher paleoenvironments, thickness variations, timing of nondeposition, and timing of erosion. These in turn allow for improved understanding of the tectonic history of each area. GEM projects produced a vast array of products, from geological and geophysical maps and geochemical data to peer-reviewed scientific papers. Reference to the most important of these products is made in the individual papers.
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Culshaw, N. G., G. Check, D. Corrigan, J. Drage, R. Gower, M. J. Haggart, P. Wallace et N. Wodicka. Georgian Bay Geological Synthesis : Dillon To Twelve Mile Bay, Grenville Province of Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/126846.
Texte intégral
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O'Neill, H. B., S. A. Wolfe et C. Duchesne. Preliminary modelling of ground ice abundance in the Slave Geological Province, Northwest Territories and Nunavut. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329815.
Texte intégralRésumé :
New infrastructure corridors within the Slave Geological Province could provide transportation, electric, and communications links to mineral-rich areas of northern Canada, and connect southern highway systems and Arctic shipping routes. Relatively little information on permafrost and ground ice is available compared to other regions, particularly in the north of the corridor. Improved knowledge of permafrost and ground ice conditions is required to inform planning and management of infrastructure. Work within the Geological Survey of Canada's (GSC) GEM-GeoNorth program includes mapping periglacial terrain features, synthesizing existing permafrost and surficial data, and modelling ground ice conditions along the Yellowknife-Grays Bay corridor. Here we present initial modelling of ground ice abundance in the region using a methodology developed for the national scale Ground ice map of Canada (GIMC), and higher resolution surficial geology mapping. The results highlight the increased estimated abundance of potentially ice-rich deposits compared to the GIMC when using more detailed surficial geology as model inputs.
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O'Brien, B., P. D. Barrette, D. A. Kenney, G. F. Gouthro et S E Palmer. Geological map of the Mahone Bay area, Nova Scotia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/130189.
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Furey, D., et D. F. Strong. Geological map of the Belleoram Pluton, Fortune Bay, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/130192.
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Culshaw, N., D. Corrigan, J. Ketchum et P. Wallace. Georgian Bay Geological Synthesis : Twelve Mile Bay To Port Severn, Grenville Province of Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/131248.
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