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Artigos de revistas sobre o tema "Evaporite and carbonate and siliciclastic minerals"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 1 de fevereiro de 2022

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1

Sadooni, Fadhil N., Fares Howari, Howell G. M. Edwards, and Ayman El-Saiy. "Lithology, mineral assemblages and microbial fingerprints of the evaporite-carbonate sediments of the coastal sabkha of Abu Dhabi and their extraterrestrial implications." International Journal of Astrobiology 9, no. 3 (2010): 147–56. http://dx.doi.org/10.1017/s1473550410000078.

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AbstractDeep-core and surface samples collected from the coastal sabkha of Abu Dhabi were subjected to a multi-proxy study, including petrographic, geochemical and spectroscopic analyses. The sediments studied are composed of biochemical carbonate-evaporite mineral suites, such as calcite, dolomite, aragonite and gypsum, as well as clastic minerals, such as quartz, feldspar and serpentine. These sediments were also strongly influenced by microbial activities as reflected by the presence of cyanobacterial mats, boring, gas bubble structures, pustular and other macro and micro textures. A combin

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2

Martini, Anna M., Lynn M. Walter, Timothy W. Lyons, Victoria C. Hover, and John Hansen. "Significance of early-diagenetic water-rock interactions in a modern marine siliciclastic/evaporite environment: Salina Ometepec, Baja California." GSA Bulletin 114, no. 9 (2002): 1055–69. http://dx.doi.org/10.1130/0016-7606(2002)114<1055:soedwr>2.0.co;2.

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Abstract Although marine brines are a significant component of pore waters in sedimentary basins, there are few geochemical studies of modern analogues of such systems, especially in siliciclastic settings. For these reasons, we chose the evaporite-associated siliciclastic sediments deposited in the salt flats of the Salina Ometepec, Baja California, for an integrated investigation of sediment, pore-water, and overlying brine geochemistry. Here, the detrital components include quartz, K-feldspar, plagioclase, chlorite, biotite, and smectite, and authigenic minerals are dominated by halite, gyp

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KLEIN, CARLA, and ANA MARIA PIMENTEL MIZUSAKI. "Cimentação Carbonática em Reservatórios Siliciclásticos - O Papel da Dolomita -." Pesquisas em Geociências 34, no. 1 (2007): 91. http://dx.doi.org/10.22456/1807-9806.19465.

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Carbonates are important diagenetic cements in siliciclastic rocks thus important to determine these rocks as hydrocarbon reservoirs. The cement is the material had chemically precipitated partial or totally pore filling, affecting rock values of porosity and permeability. The acknowledgment of diagenetic patterns those are associated to the carbonatic cement precipitation and their impacts in the reservoirs quality can decrease the risks of exploration and exploitation of new reservoirs. Therefore is necessary the knowledge of origin and processes of carbonate cement’s precipitation. These ce

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Majzlan, Juraj, Maria Brey-Funke, Alexander Malz, Stefan Donndorf, and Rastislav Milovský. "Fluid evolution and mineralogy of Mn-Fe-barite-fluorite mineralizations at the contact of the Thuringian Basin, Thüringer Wald and Thüringer Schiefergebirge in Germany." Geologica Carpathica 67, no. 1 (2016): 3–20. http://dx.doi.org/10.1515/geoca-2016-0001.

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Abstract Numerous small deposits and occurrences of Mn-Fe-fluorite-barite mineralization have developed at the contact of the Thuringian Basin, Thüringer Wald and Thüringer Schiefergebirge in central Germany. The studied mineralizations comprise the assemblages siderite+ankerite-calcite-fluorite-barite and hematite-Mn oxides-calcite-barite, with the precipitation sequence in that order within each assemblage. A structural geological analysis places the origin of the barite veins between the Middle Jurassic and Early Cretaceous. Primary fluid inclusions contain water vapour and an aqueous phase

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Ben Ismail, Mohamed Hédi, and Ali M'Rabet. "Evaporite, carbonate, and siliciclastic transitions in the Jurassic sequences of southeastern Tunisia." Sedimentary Geology 66, no. 1-2 (1990): 65–82. http://dx.doi.org/10.1016/0037-0738(90)90007-g.

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Purser, Bruce H., Mohamad Soliman, and Ali M'Rabet. "Carbonate, evaporite, siliciclastic transitions in Quaternary rift sediments of the northwestern Red Sea." Sedimentary Geology 53, no. 3-4 (1987): 247–67. http://dx.doi.org/10.1016/0037-0738(87)90037-6.

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Kenter, Jeroen A. M., F. F. Podladchikov, Marc Reinders, Sjierk J. Van der Gaast, Bruce W. Fouke, and Mark D. Sonnenfeld. "Parameters controlling sonic velocities in a mixed carbonate‐siliciclastics Permian shelf‐margin (upper San Andres formation, Last Chance Canyon, New Mexico)." GEOPHYSICS 62, no. 2 (1997): 505–20. http://dx.doi.org/10.1190/1.1444161.

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We have measured the acoustic properties and mineralogic composition of 48 rock specimens from mixed carbonate‐siliciclastic outcrops of the Permian upper San Andres formation in Last Chance Canyon, New Mexico. The goals were: (1) identify and model the parameters controlling the sonic velocities; (2) assess the influence of postburial diagenesis on the acoustic velocities. The variation in sonic velocity in the 0 to 25% porosity range is primarily controlled by porosity, and secondly by the ratio of carbonate‐siliciclastic material. Linear multivariate fitting resulted in a velocity‐porosity‐

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Zhang, Biao, Dan Zhao, Pengpeng Zhou, Shen Qu, Fu Liao, and Guangcai Wang. "Hydrochemical Characteristics of Groundwater and Dominant Water–Rock Interactions in the Delingha Area, Qaidam Basin, Northwest China." Water 12, no. 3 (2020): 836. http://dx.doi.org/10.3390/w12030836.

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Groundwater is undoubtedly important for water supplies and eco-environment protection, especially for arid and semi-arid regions. Analyzing the characteristics and evolution of groundwater is significant for the rational management of groundwater resources. This study investigated the hydrogeochemical characteristics and evolutions of groundwater in the Delingha area, northeast of the Qaidam Basin, northwest China, with a total of 123 water samples, including 105 unconfined groundwater samples, 12 confined groundwater samples, and 6 surface water samples. Hydrochemical results showed that the

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Husinec, Antun, and Lukas A. Harvey. "Late Ordovician climate and sea-level record in a mixed carbonate-siliciclastic-evaporite lithofacies, Williston Basin, USA." Palaeogeography, Palaeoclimatology, Palaeoecology 561 (January 2021): 110054. http://dx.doi.org/10.1016/j.palaeo.2020.110054.

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Hewton, M. L., D. D. Marshall, L. Ootes, L. E. Loughrey, and R. A. Creaser. "Colombian-style emerald mineralization in the northern Canadian Cordillera: integration into a regional Paleozoic fluid flow regime." Canadian Journal of Earth Sciences 50, no. 8 (2013): 857–71. http://dx.doi.org/10.1139/cjes-2012-0128.

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Emerald in the Mackenzie Mountains is hosted in extensional quartz–carbonate veins cutting organic-poor Neoproterozoic sandstones and siltstones within the hanging wall of a thrust fault that emplaced these strata above Paleozoic rocks. Isotopic compositions of water extracted from emerald are typical of evolved sedimentary sulphate brines. Fluid inclusion studies indicate two saline fluid populations: a CO2–N2-bearing, high-salinity brine (20.4–25.8 wt.% NaCl equivalent), and a gas-free, saline brine (7.6–15.3 wt.% NaCl equivalent). Both populations display evidence of post-entrapment volume

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Banat, K. M., F. M. Howari, and K. A. Kadi. "Water Chemical Characteristics of the Red Sea Coastal Sabkhas and Associate Evaporite and Carbonate Minerals." Journal of Coastal Research 215 (September 2005): 1068–81. http://dx.doi.org/10.2112/04-0181.1.

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Rivers, John M., Robert W. Dalrymple, Ruqaiya Yousif, et al. "Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar." Sedimentary Geology 408 (October 2020): 105730. http://dx.doi.org/10.1016/j.sedgeo.2020.105730.

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Smyrak‐Sikora, Aleksandra, Jakob B. Nicolaisen, Alvar Braathen, Erik P. Johannessen, Snorre Olaussen, and Lars Stemmerik. "Impact of growth faults on mixed siliciclastic‐carbonate‐evaporite deposits during rift climax and reorganisation—Billefjorden Trough, Svalbard, Norway." Basin Research 33, no. 5 (2021): 2643–74. http://dx.doi.org/10.1111/bre.12578.

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Xu, Wei, Zhengyu Li, Huiyong Li, et al. "The relationship between source supply and mixed deposition of siliciclastic and carbonate: First to second member of the Shahejie Formation, Paleogene, Bohai Sea area, China." Interpretation 9, no. 2 (2021): SC45—SC52. http://dx.doi.org/10.1190/int-2020-0182.1.

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There are various types of mixed siliciclastic-carbonate sediments developed in the Bohai Sea area during the period of the first to second member of the Shahejie Formation (E2s1-2) of the Paleocene. We have concluded that the period of E2s1-2 was very suitable for the development of carbonate minerals and organisms because of the stable tectonic background, the weak siliciclastic influence of large source systems outside the basin, and the high salinity of the water. There were many local uplifts inside the basin during E2s1-2, and the source area, supply direction, and quantity of the local

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Liu, Jinke, Guilin Han, Man Liu, Jie Zeng, Bin Liang, and Rui Qu. "Distribution, Sources and Water Quality Evaluation of the Riverine Solutes: A Case Study in the Lancangjiang River Basin, Tibetan Plateau." International Journal of Environmental Research and Public Health 16, no. 23 (2019): 4670. http://dx.doi.org/10.3390/ijerph16234670.

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To examine the chemical composition, potential sources of solutes, and water quality of Lancangjiang River, the concentrations of major ions (Ca2+, Mg2+, Na+, K+, HCO3−, SO42−, Cl− and NO3−) in 45 river water samples collected in July and August 2019 were determined. Ca2+ and HCO3− are the predominant ions in river water. The extremely low K+ and NO3− concentrations and the sparse population suggest that the anthropogenic inputs are limited. The Pearson correlation coefficients and the elemental ratios Ca2+/Na+ versus Mg2+/Na+, Ca2+/Na versus HCO3−/Na+, [Ca2+ + Mg2+]/[HCO3−] versus [SO42−]/[HC

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16

Hu, Suyun, Wenzhi Zhao, Zhaohui Xu, et al. "Applying principal component analysis to seismic attributes for interpretation of evaporite facies: Lower Triassic Jialingjiang Formation, Sichuan Basin, China." Interpretation 5, no. 4 (2017): T461—T475. http://dx.doi.org/10.1190/int-2017-0004.1.

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In China and elsewhere, it is important to predict different lithologies and lithofacies for hydrocarbon exploration in a mixed evaporite-carbonate-siliciclastic system. The lower section of the second member of the Jialingjiang Formation (T1j2L) is mainly composed of anhydrite, dolostone, limestone, and siliciclastic rocks, providing a rare opportunity to reconstruct detailed facies in a [Formula: see text] 3D seismic survey with 31 wells. Wireline logs (sonic, density, and gamma ray) calibrated by core analysis are essential in distinguishing anhydrite, siliciclastics, and carbonates. Althou

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17

Gu, Ning, Wenying Jiang, Luo Wang, Enlou Zhang, Shiling Yang, and Shangfa Xiong. "Rainfall thresholds for the precipitation of carbonate and evaporite minerals in modern lakes in northern China." Geophysical Research Letters 42, no. 14 (2015): 5895–901. http://dx.doi.org/10.1002/2015gl064340.

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Liu, Tingting, David L. Bish, Richard A. Socki, Ralph P. Harvey, and Eric Tonui. "Mineralogy and formation of evaporite deposits from the Lewis Cliff ice tongue, Antarctica." Antarctic Science 27, no. 1 (2014): 73–84. http://dx.doi.org/10.1017/s0954102014000406.

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AbstractThe mineralogy of evaporites from the Lewis Cliff ice tongue (LCIT), Antarctica, and their mineral stabilities and transformation behaviours under different temperature and relative humidity (RH) conditions have been evaluated to elucidate formation mechanism(s). A variety of sodium (Na)-rich evaporite minerals were documented using RH-controlled powder X-ray diffraction (XRD) methods including Na-sulfates (mirabilite and thenardite), Na-carbonate/bicarbonates (nahcolite, occasional trona and natron) and Na-borates (qilianshanite and borax). Mirabilite begins to dehydrate to thenardite

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Dewing, Keith, and Paul Copper. "Upper Ordovician stratigraphy of Southampton Island, Northwest Territories." Canadian Journal of Earth Sciences 28, no. 2 (1991): 283–91. http://dx.doi.org/10.1139/e91-027.

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The middle to late Caradoc Bad Cache Rapids Formation of Southampton Island consists of three "members": a locally present thin siliciclastic unit, overlain by a highly fossiliferous wackestone, capped by a mudstone, all deposited in a broad, shallow shelf setting. This formation is, possibly unconformably, overlain by the early Ashgill Boas River Formation, comprising a lower carbonate mudstone and an upper oil shale, deposited in a local, shallow subtidal, restricted basin during a transgression. Early to middle Ashgill strata of the Churchill River Formation are made up of a lower unit with

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20

van der Lingen, G. J., G. A. Challis, P. H. Robinson, D. Smale, and W. A. Walters. "Siliciclastic Diagenesis in Paleocene-Eocene Reservoir Sandstones of the Taranaki Basin, New Zealand." Energy Exploration & Exploitation 6, no. 2 (1988): 151–69. http://dx.doi.org/10.1177/014459878800600208.

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Present-day producing hydrocarbon reservoirs in the Taranaki Basin occur in the Paleocene-Eocene Kapuni Group, both onshore and offshore. The Kapuni Group has been encountered only in drillholes, the top being at depths ranging from 2 to 4 km. It consists of fluvial, paralic, near-shore and shelf sediments, containing proven and prospective reservoir sandstones with variable grain-size, sorting, porosity and permeability. Compositionally, the sandstones are sub-feldsarenites to feldsarenites, derived from continental block source rocks. Diagenetic features adversely affecting reservoir quality

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21

Basaham, Ali S., Ibrahim M. Ghandour, and Rabea Haredy. "Controlling factors on the geochemistry of Al-Shuaiba and Al-Mejarma coastal lagoons, Red Sea, Saudi Arabia." Open Geosciences 11, no. 1 (2019): 426–39. http://dx.doi.org/10.1515/geo-2019-0034.

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Abstract Geochemical and mineralogical analyses of bottom sediments collected from Al-Shuaiba (SHL) and Al-Mejarma (MJL) coastal lagoons, Red Sea were carried out. Mineralogically, the sediments consist mainly of carbonate minerals particularly aragonite, high and low Mg-calcite and traces of dolomite admixed with non-carbonate minerals including quartz, k-feldspars, plagioclase and traces of amphiboles, mica and clay minerals. The spatial distribution of major and trace elements at the bottom of the lagoons indicates two groups of elements. The first, less significant, is of terrigenous origi

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Hammond, Alexander P., Alan R. Carroll, Ethan C. Parrish, M. Elliot Smith, and Tim K. Lowenstein. "The Aspen paleoriver: Linking Eocene magmatism to the world’s largest Na-carbonate evaporite (Wyoming, USA)." Geology 47, no. 11 (2019): 1020–24. http://dx.doi.org/10.1130/g46419.1.

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Abstract Deposition of trona, nahcolite, and other Na-carbonate evaporite minerals in lakes is commonly closely associated with active volcanism, suggesting that the excess alkalinity required for their formation may arise from fluid-rock interactions involving hydrothermal waters that contain magmatic CO2. Paradoxically, the world’s largest Na-carbonate occurrence, contained within the Eocene Green River Formation in Wyoming, USA, was not associated with nearby active magmatism. Magmatism was active ∼200 km southeast in the Colorado Mineral Belt, however, suggesting that a river draining this

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Wagreich, Michael, and Veronika Koukal. "The pelagic archive of short-term sea-level change in the Cretaceous: a review of proxies linked to orbital forcing." Geological Society, London, Special Publications 498, no. 1 (2019): 39–56. http://dx.doi.org/10.1144/sp498-2019-34.

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AbstractDeep-time sea-level oscillations in the Milankovitch-band of orbital cyclicities govern deposition in the pelagic realm mainly by varying siliciclastic input. Pelagic sediments from the Cretaceous greenhouse climate phase provide a valuable archive for sea-level change. Although sea-level variations are of negligible amplitude compared with depositional water-depths, direct physical proxy data are based on higher and coarser siliciclastic input during sea-level lowstand and regressions, and include coarser grain size and grain-size parameters as well as the heavy mineral and clay conte

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Riquelme, Francisco, Martha Cuevas-García, Jesús Alvarado-Ortega, et al. "New Insights into Ancient Maya Building Materials: Characterization of Mortar, Plaster, and Coquina Flagstones from Toniná." MRS Proceedings 1374 (2012): 145–64. http://dx.doi.org/10.1557/opl.2012.1385.

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ABSTRACTThis work shows current research on lithic raw material used by the ancient Maya of Toniná. The core of the city of Toniná lies on a steep-sided hill of calcareous sandstones from the shallow marine deposits dated as Oligocene, in the Chiapas Highlands of Southern Mexico. Results of paleontological fieldwork in Toniná show several biostrome sediments mound-like with tabular bafflestones and large coquina flagstones, which are sheet-like rocks enriched with fossil mollusk shells, corals, encrusted organisms, and calcareous debris. The people of Toniná intentionally selected and carved t

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Holley, Elizabeth A., Justin A. Lowe, Craig A. Johnson, and Michael J. Pribil. "Magmatic-Hydrothermal Gold Mineralization at the Lone Tree Mine, Battle Mountain District, Nevada." Economic Geology 114, no. 5 (2019): 811–56. http://dx.doi.org/10.5382/econgeo.4665.

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Abstract The Lone Tree deposit is located in the northern Battle Mountain mining district, Nevada. Prior to mine closure in 2006, Santa Fe Pacific Gold and Newmont produced 4.2 Moz of gold at an average grade of 2.06 g/t at Lone Tree, primarily from the N-S– to NNW-SSE–striking Wayne zone. The ore is located between the Roberts Mountain and Golconda thrusts in siliciclastic rocks of the Ordovician Valmy Formation and in the Pennsylvanian-Permian Battle Mountain and Edna Mountain Formations, and above the Golconda thrust in siliciclastic and carbonate rocks of the Mississippian to Permian Haval

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Zhao, Wenzhi, Suyun Hu, Zhaohui Xu, et al. "Lithology mapping of a mixed siliciclastic−carbonate−evaporite system using 3D seismic and well data: Lower Triassic Jialingjiang Formation, Sichuan Basin, southwestern China." Marine and Petroleum Geology 93 (May 2018): 422–36. http://dx.doi.org/10.1016/j.marpetgeo.2018.03.005.

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Bellanca, A., and R. Neri. "Dissolution and precipitation of gypsum and carbonate minerals in soils on evaporite deposits, central Sicily: isotope geochemistry and microfabric analysis." Geoderma 59, no. 1-4 (1993): 263–77. http://dx.doi.org/10.1016/0016-7061(93)90073-t.

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Renner, James M., and Donald W. Boyd. "The Permian-Triassic boundary in Wyoming: the case of the disappearing paraconformity." Paleontological Society Special Publications 6 (1992): 242. http://dx.doi.org/10.1017/s2475262200008029.

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Long-standing interpretations of paleontologic, sedimentologic, and stratigraphic evidence from Permian-Triassic marine sequences in western Wyoming have suggested an interruption in deposition of several million years' duration between the two systems, even though physical evidence of unconformity is subtle and somewhat equivocal. We postulated that an unconformity of this duration should be more pronounced in paralic and non-marine facies in central and southeast Wyoming than in adjacent inner-shelf marine facies in westcentral Wyoming. Therefore, we correlated an erathem boundary-bearing se

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Safe, Abdolah, Fatemeh Sabokkhiz, Mohamad Hosein Ramesht, Morteza Djamali, and Abdolmajid Naderi Beni. "Study Clastic Sediments and Evaporite Deposits’ Changes in the Sedimentary Core Lake Maharlou, Iran." Modern Applied Science 10, no. 4 (2016): 1. http://dx.doi.org/10.5539/mas.v10n4p1.

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The continental environments, lakes are proper for deposition locations of evaporites. Evaporite minerals are formed wherever the evaporation rate is more than incoming water to the basin. In this article the evaporate deposits (Calcite, Gypsum and Halite) are studied in a sedimentary core of Lake Maharlou, Zagros Mountains, South of Iran. The core sample treated for getting Magnetic Susceptibility values along with the core as well as basic sedimentological data including grain size, Total Organic Matter and carbonate contents. NaCl is determin ed by gravimetric analysis. Loss on Ignition is

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Wilton, Derek H. C., Benoit M. Saumur, Adrian Gordon, and Marie-Claude Williamson. "Enigmatic massive sulphide mineralization in the High Arctic Large Igneous Province, Nunavut, Canada." Canadian Journal of Earth Sciences 56, no. 7 (2019): 790–801. http://dx.doi.org/10.1139/cjes-2018-0156.

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Modern mineral exploration strategies should take into account nontraditional metallogenic models for a given geological environment. Here we document the first detailed study of a massive sulphide showing associated with the High Arctic Large Igneous Province (HALIP) and Sverdrup Basin and in fact, only the second example of mineralization described from Axel Heiberg Island, Queen Elizabeth Islands, Canadian Arctic Archipelago. The Between Lake showing (western Axel Heiberg Island) is a small massive sulphide occurrence within scree/talus below a large ridge of gabbro. It was originally descr

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Dub, S. A., N. V. Cherednichenko, D. V. Kiseleva, N. P. Gorbunova, T. Ya Gulyaeva, and L. K. Deryugina. "Trace element behaviour in acidic leachates (acetic, nitric and hydrochloric) from siliciclastic-carbonate rocks of the Upper Riphean Uk formation in the Southern Urals." LITHOSPHERE (Russia) 19, no. 6 (2020): 919–44. http://dx.doi.org/10.24930/1681-9004-2019-19-6-919-944.

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Research subject. 14 samples of limestone and one sample of carbonate-siliciclastic rock from siliciclastic-carbonate deposits of the Upper Riphean Uk Formation (the Southern Urals) were studied.Methods. Mineral and chemical composition of the samples were determined; the main tool for detecting the concentrations of trace elements was the ICPMS method. X-ray diffraction analysis was carried out using a Shimadzu XRD-7000 diffractometer, the content of major (rock-forming) oxides in bulk samples was established by X-ray fluorescence spectrometry on the SRM-35 and Shimadzu XRF 1800 spectrometers

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Varga, Andrea, Gábor Bozsó, István Garaguly, Béla Raucsik, Attila Bencsik, and Balázs Kóbor. "Cements, Waters, and Scales: An Integrated Study of the Szeged Geothermal Systems (SE Hungary) to Characterize Natural Environmental Conditions of the Thermal Aquifer." Geofluids 2019 (April 24, 2019): 1–21. http://dx.doi.org/10.1155/2019/4863814.

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The study area, Pannonian Basin (Central Europe), is characterized by high heat flow and presence of low-enthalpy geothermal waters. In the Szeged Geothermal Systems (Hungary), having Miocene to Pliocene sandstone aquifers with dominantly Na–HCO3-type thermal water, unwanted carbonate scaling was observed. An integrated approach consisting of host rock and scale mineralogical and petrographic analyses as well as water chemistry led to a better understanding of the characteristic natural (geogenic) environmental conditions of the geothermal aquifers and to highlight their technical importance.

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Nance, Hardie S., and Harry Rowe. "Eustatic controls on stratigraphy, chemostratigraphy, and water mass evolution preserved in a Lower Permian mudrock succession, Delaware Basin, west Texas, USA." Interpretation 3, no. 1 (2015): SH11—SH25. http://dx.doi.org/10.1190/int-2014-0207.1.

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Bone Spring (Leonardian) mudrock successions in Delaware Basin vary between silica- and carbonate-rich facies marking depositional responses to sea-level changes. Increased Mo, [Formula: see text], and total organic carbon (TOC) record reduced oxygenation during sea-level lowstands. In a 91.4-m (300 ft) core from Sun No. 1 Houssels well and a 39.6-m (130 ft) core from Shell No. 1 Marsden well (Reeves Co., Texas), lower Bone Spring cycles comprised siliceous-calcareous mudrock couplets. The Marsden core was correlative to the upper part of the Houssels core. Cyclicity was interpreted from miner

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Benamara, Abdelwaheb, Houria Kherici-Bousnoubra, and Fouzia Bouabdallah. "Thermo-mineral waters of Hammam Meskoutine (north-east Algeria): Composition and origin of mineralization." Journal of Water and Land Development 34, no. 1 (2017): 47–57. http://dx.doi.org/10.1515/jwld-2017-0037.

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Abstract The extreme north-eastern Algeria, in particular the Guelma city conceals thermal springs, whose waters circulating at great depths allow the rain-waters to warm up (according to the average geothermal gradient of 1°C per 33 m) and to acquire a mineralization which depends on the traversed rock. The goal of this research work was to determine mineralization origin of the thermo-mineral waters of Hammam Meskoutine (Algerian N-E). A hydro-chemical study involved analyses of a number of physical and chemical parameters of waters such as: temperature, hydrogen potential, electrolytical co

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Pye, K., and D. H. Krinsley. "Diagenetic carbonate and evaporite minerals in Rotliegend aeolian sandstones of the Southern North Sea: their nature and relationship to secondary porosity development." Clay Minerals 21, no. 4 (1986): 443–57. http://dx.doi.org/10.1180/claymin.1986.021.4.03.

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AbstractDeeply buried (> 3·5 km) Rotliegend aeolian sandstones in the Southern North Sea Basin display a number of interesting diagenetic features including (i) zoned iron-rich carbonate cements, (ii) anhydrite, halite and baryte cements, (iii) at least two generations of authigenic illite, and (iv) significant secondary porosity created by cement and framework-grain dissolution. The creation and destruction of secondary porosity is the result of changes in porewater chemistry during burial and subsequent uplift. Three pore-fluid regimes can be identified: (1) alkaline, oxidizing conditions

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Brahmia, Ali, Nafaa Brinis, and Tahar Nouar. "Statistical and hydrogeochemical characteristics of the M’Daourouch-Drea Plain’s groundwater, North-East of Algeria." Journal of Water and Land Development 38, no. 1 (2018): 19–26. http://dx.doi.org/10.2478/jwld-2018-0038.

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AbstractThis work was conducted on 23 samples distributed between springs, wells and boreholes tapping the shallow and deep aquifer in the M’Daourouch-Drea area located in extreme northeast of Algeria. Ca2+, Mg2+, Na+, K+, Cl−, SO42−, HCO3−and NO3− were analysed. The interpretation of the geological-geophysical data allowed us to highlight two aquifers. The first consists of conglomerates, sandstones, gravels, sands, marls, limestones, lacustrine and alluvial deposits varying in thickness from a few tens to a few hundred meters, representing Neogene-Quaternary filling of the studied basin. The

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Wehrmann, L. M., N. J. Knab, H. Pirlet, V. Unnithan, C. Wild, and T. G. Ferdelman. "Carbon mineralization and carbonate preservation in modern cold-water coral reef sediments on the Norwegian shelf." Biogeosciences 6, no. 4 (2009): 663–80. http://dx.doi.org/10.5194/bg-6-663-2009.

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Abstract. Cold-water coral ecosystems are considered hot-spots of biodiversity and biomass production and may be a regionally important contributor to carbonate production. The impact of these ecosystems on biogeochemical processes and carbonate preservation in associated sediments were studied at Røst Reef and Traenadjupet Reef, two modern (post-glacial) cold-water coral reefs on the Mid-Norwegian shelf. Sulfate and iron reduction as well as carbonate dissolution and precipitation were investigated by combining pore-water geochemical profiles, steady state modeling, as well as solid phase ana

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Wehrmann, L. M., N. J. Knab, H. Pirlet, V. Unnithan, C. Wild, and T. G. Ferdelman. "Carbon mineralization and carbonate preservation in modern cold-water coral reef sediments on the Norwegian shelf." Biogeosciences Discussions 5, no. 6 (2008): 4945–92. http://dx.doi.org/10.5194/bgd-5-4945-2008.

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Abstract. Cold-water coral ecosystems are considered hot-spots of biodiversity and biomass production and may be a regionally important contributor to carbonate production. The impact of these ecosystems on biogeochemical processes and carbonate preservation in associated sediments were studied at Røst Reef and Traenadjupet Reef, two modern (post-glacial) cold-water coral reefs on the Mid-Norwegian shelf. Sulfate and iron reduction as well as carbonate dissolution and precipitation were investigated by combining pore-water geochemical profiles, steady state modeling, as well as solid phase ana

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Thum, Laurent, Reto De Paoli, Gérard M. Stampfli, and Patrice Moix. "The Piolit, Pelat and Baiardo Upper Cretaceous flysch formations (western Alps): geodynamic implications at the time of the Pyrenean tectonic phases." Bulletin de la Société Géologique de France 186, no. 4-5 (2015): 209–21. http://dx.doi.org/10.2113/gssgfbull.186.4-5.209.

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AbstractThe Piolit, Pelat (French Alps) and Baiardo (Italian Maritime Alps) units contain Upper Cretaceous carbonate turbidites formations, with minor siliciclastic components. They are flysch formations, linked with the Pyrenean compressive events through their ages and their “subbriançonnais” structural position. Sedimentological, mineralogical (heavy minerals), and geochemical analysis, point to a potential “Pyrenean signature” which would testify the Late Cretaceous collision between the Ibero-Briançonnais terrane and the European plate. A “Dauphinois” origin and basin inversion erosion is

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Utami, Dwi Amanda, Lars Reuning, Maximillian Hallenberger, and Sri Yudawati Cahyarini. "The mineralogic and isotopic fingerprint of equatorial carbonates: Kepulauan Seribu, Indonesia." International Journal of Earth Sciences 110, no. 2 (2021): 513–34. http://dx.doi.org/10.1007/s00531-020-01968-9.

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AbstractKepulauan Seribu is an isolated patch reef complex situated in the Java Sea (Indonesia) and is a typical example for a humid, equatorial carbonate system. We investigate the mineralogical and isotopic fingerprint of Panggang, one of the reef platforms of Kepulauan Seribu, to evaluate differences to other carbonate systems, using isotope in combination with XRD and SEM analysis. A characteristic property of shallow water (< 20 m) sediments from Kepulauan Seribu is their increased LMC content (~ 10%) derived from some genera of rotaliid foraminifers and bivalves. The relative abundanc

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de Oliveira Nardi Leite, Caroline, Carlos Manuel de Assis Silva, and Luiz Fernando de Ros. "Depositional and diagenetic processes in the pre-salt rift section of a Santos Basin area, SE Brazil." Journal of Sedimentary Research 90, no. 6 (2020): 584–608. http://dx.doi.org/10.2110/jsr.2020.27.

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ABSTRACT This study aims to provide a better understanding of the genesis and diagenetic evolution of the rift pre-salt deposits of the Santos Basin, in the context of evolution of the lake system in which the sediments were deposited. The study of the syngenetic and early diagenetic constituents and their paragenetic relations allowed reconstruction of the evolution of lacustrine environmental conditions during the rift stage in the central area of the basin. A petrological study was performed on cores and sidewall samples of a well drilled through the pre-salt rift section in the Lower Creta

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Michalík, Jozef, Marta Bąk, Otília Lintnerová, and Štefan Méres. "Biostratigraphy, geochemistry and sedimentology of Middle to Late Jurassic strata in the Strážovce section (Strážovské vrchy Mts), Krížna Nappe of the Central Carpathians, Slovakia." Volumina Jurassica, no. 1 (December 27, 2017): 0. http://dx.doi.org/10.5604/01.3001.0010.7442.

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Abstract. The Jurassic / Lower Cretaceous sequence of the Strážovce section has been deposited in the central, axial part of the Zliechov Basin. Its most characteristic part – the Ždiar Formation consists of bedded siliceous radiolarian limestones and radiolarites. The radiolarian assemblage typical of the North Tethyan Bioprovince lived during mid Oxfordian – Early Kimmeridgian in a warm upper part of the well stratified water column, partially near to the thermocline. Radiolarian abundance decreases upwards. Productivity decrease is quantified by the share of biogenic SiO2 as well as by high

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Alvarenga, Renata dos Santos, Juliano Kuchle, David Iacopini, et al. "Tectonic and Stratigraphic Evolution Based on Seismic Sequence Stratigraphy: Central Rift Section of the Campos Basin, Offshore Brazil." Geosciences 11, no. 8 (2021): 338. http://dx.doi.org/10.3390/geosciences11080338.

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The rift section of the Brazilian basins represent the sedimentary record associated with the first stages of Gondwana break-up in the Early Cretaceous phase (Berriasian to Aptian). The rift succession of the Campos Basin constitutes one of the main petroleum systems of Brazil’s marginal basins. This interval contains the main source rock and important reservoirs in the Lagoa Feia Group deposits. The Lagoa Feia Group is characterized by siliciclastic, carbonate and evaporite sediments deposited during the rift and post-rift phases. Despite the economic relevance, little is known in stratigraph

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TAWFIK, HOSSAM A., IBRAHIM M. GHANDOUR, WATARU MAEJIMA, JOHN S. ARMSTRONG-ALTRIN, and ABDEL-MONEM T. ABDEL-HAMEED. "Petrography and geochemistry of the siliciclastic Araba Formation (Cambrian), east Sinai, Egypt: implications for provenance, tectonic setting and source weathering." Geological Magazine 154, no. 1 (2015): 1–23. http://dx.doi.org/10.1017/s0016756815000771.

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AbstractCombined petrographic and geochemical methods are utilized to investigate the provenance, tectonic setting, palaeo-weathering and climatic conditions of the Cambrian Araba clastic sediments of NE Egypt. The ~ 60 m thick Araba Formation consists predominantly of sandstone and mudstone interbedded with conglomerate. Petrographically the Araba sandstones are mostly sub-mature and classified as subarkoses with an average framework composition of Q80F14L6. The framework components are dominated by monocrystalline quartz with subordinate K-feldspar, together with volcanic and granitic rock f

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Promkotra, Sarunya. "Applicable Fine Stream Sediments from Upper Chi River Produced Fired Clay Bricks." Applied Mechanics and Materials 423-426 (September 2013): 1041–45. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1041.

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Stream sediments from the upper Chi River basin, including Chi and Nam Phong sub-watershed, are applicable to be a source of raw materials to produce fired clay bricks. The sampling locations of clay materials are generally found along the river terrace where are covering three different regions (upper-, mid-and lower sub-watershed) nearby brickyards. Quartz is the main mineral of all samples. Moreover, mainly clay mineral groups consist of mica, kaolinite, and chlorite group composing totally around 5%. Other mineral compositions, such as carbonate, evaporite, corundum, hematite and pyrolusit

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Mannaa, Ammar A., Rabea A. Haredy, and Ibrahim M. Ghandour. "Beachrock as a Paleoshoreline Indicator: Example from Wadi Al-Hamd, South Al-Wajh, Saudi Arabia." Journal of Marine Science and Engineering 9, no. 9 (2021): 984. http://dx.doi.org/10.3390/jmse9090984.

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The present study concerns the Holocene inland beachrocks that are exposed in the Red Sea coastal plain at the mouth of Wadi Al-Hamd, South Al-Wajh City, Saudi Arabia, and their utility as an indicator for Holocene climate and sea level changes. In addition, the framework composition, and carbon and oxygen isotopic data, are employed to interpret the origin of their cement. The beachrock consists mainly of gravel and coarse-grained terrigenous sediments dominated by lithic fragments of volcanic rocks, cherts and rare limestones along with quartz, feldspars and traces of amphiboles and heavy mi

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Mondillo, Nicola, Giuseppina Balassone, Maria Boni, et al. "Rare Earth Elements (REE) in Al- and Fe-(Oxy)-Hydroxides in Bauxites of Provence and Languedoc (Southern France): Implications for the Potential Recovery of REEs as By-Products of Bauxite Mining." Minerals 9, no. 9 (2019): 504. http://dx.doi.org/10.3390/min9090504.

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Bauxites in southern France (Provence and Languedoc) have been exploited since the beginning of the last century. Though most of the deposits are now subeconomic or mined-out, these bauxites represent model analogs for other economic bauxites of the world. These Cretaceous karst-type deposits lie directly on Jurassic carbonates, and have been formed through a combination of different processes: in-situ alteration of siliciclastic sediments deposited on carbonate platforms, and reworking of early bauxites in the karst network. In this study, we present preliminary bulk rock geochemical and in-s

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Lan, Qing, Ruizhong Hu, Xianwu Bi, et al. "The Source of Organic Matter and Its Role in Producing Reduced Sulfur for the Giant Sediment-Hosted Jinding Zinc-Lead Deposit, Lanping Basin, Yunnan, Southwest China." Economic Geology 116, no. 7 (2021): 1537–60. http://dx.doi.org/10.5382/econgeo.4838.

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Abstract The Jinding deposit, located in the northern part of Lanping basin in southwest China, is the second largest Zn-Pb deposit in China and the third largest Mississippi Valley-type deposit identified globally. The deposit consists of several large tabular orebodies within the Jinding dome. Two stages of sulfide mineralization (sphalerite, galena, and pyrite) are identified, which are mainly hosted in the siliciclastic strata of Early Cretaceous and Paleocene age. The early sulfide minerals are mostly fine grained (&lt;100 μm) and disseminated in the host rocks, whereas the late miner

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Garzanti, Eduardo, Sergio Andò, and Giovanni Vezzoli. "Provenance of Cenozoic Indus Fan Sediments (IODP Sites U1456 and U1457)." Journal of Sedimentary Research 90, no. 9 (2020): 1114–27. http://dx.doi.org/10.2110/jsr.2019-195.

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ABSTRACT Provenance analysis of IODP Expedition 355 cores in the Laxmi Basin sheds new light on the erosional evolution of the Himalayan belt and its western syntaxis during the Neogene and on large-scale mass-wasting and magmatic events that affected the western continental margin of India in the mid-Miocene and early Paleocene. In the cored Laxmi Basin succession, heavy minerals are far less affected by selective diagenetic dissolution than in foreland-basin sandstones exposed along the Himalayan front. Occurrence of euhedral aegirine and apatite in lower Paleocene mudrocks can be tied to al

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Scatigno, Claudia, Maria Preite Martinez, Nagore Prieto-Taboada, Juan Manual Madariaga, and Aida Maria Conte. "Petrographic-Mineralogical Characterization of Archaeological Materials from “Casa di Diana” Mithraeum Sited in the Open Museum of Ostia Antica." Crystals 11, no. 7 (2021): 839. http://dx.doi.org/10.3390/cryst11070839.

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Mithraea, religious Roman buildings, are very common in Italian archeological sites. There are sixteen in Ostia Antica (Rome, Italy)The poor state of conservation, due to the intrinsic environmental conditions, characterized them: they consist of open-air museums and caves simultaneously. These places of worship are characterized by the presence of heterogeneous materials, such as wall building materials (bricks and mortars) and others used for furnishings and fittings. This increases the risk of accelerated damage because the materials ‘rheology is different. Here, a full petrographic-mineral

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