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Journal articles on the topic 'Gong rocks'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Tosun, Hasan. "Discussion of “Construction of Concrete-Faced Rockfill Dams with Weak Rocks” by Hao-Feng Xing, Xiao-Nan Gong, Xiao-Guang Zhou, and Hai-Feng Fu." Journal of Geotechnical and Geoenvironmental Engineering 134, no. 8 (2008): 1224–25. http://dx.doi.org/10.1061/(asce)1090-0241(2008)134:8(1224).

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2

Keefer, David K., Raymond C. Wilson, Edwin L. Harp, and Elliott W. Lips. "The Borah Peak, Idaho Earthquake of October 28, 1983—Landslides." Earthquake Spectra 2, no. 1 (1985): 91–125. http://dx.doi.org/10.1193/1.1585304.

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The Borah Peak, Idaho earthquake caused several hundred landslides throughout an area of about 4,200 km2. The most numerous landslides were rock falls and rock slides, which occurred where slopes contained conspicuous, through-going, open fractures or were composed of weakly cemented rocks. The earthquake also produced several slumps and cracks in man-made fill, several soil liquefaction phenomena, a large debris flow, a large mud flow, and a few ground failures of other types. The most significant landslide damage was in Challis, where rock falls damaged at least 3 houses and 2 automobiles.

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3

Rycroft, David, Anthony Baines, and Denzil Wraight. "Rock Gongs." Galpin Society Journal 48 (March 1995): 269. http://dx.doi.org/10.2307/842846.

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4

Babiiuk, G. V., and V. F. Puntus. "On-going geocontrol while mounting anchors." Metallurgicheskaya i gornorudnaya promyshlennost, no. 1 (2019): 72–77. http://dx.doi.org/10.33101/s001-1300119.

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Purpose. Development of method for rocks mechanical properties rapid determination by the fixation of 1m borehole net drilling time. Methodology. Determination of mechanical properties of rocks (uniaxial compression strength) in real-time mode using an automated geocontrol system. Findings. A method for rapid determination of rocks properties and methodology for anchor production mounting process governance have been developed. Scientific novelty. Real-time determination of the deformation and strength characteristics of rocks based on the correlation between borehole net drilling time and the

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5

Sidiq, Irsyad Nuruzzaman, and Thaqibul Fikri Niyartama. "Porosity Identification of Carbonate Core Reservoir Using Digital Rock Physics Method." Proceeding International Conference on Science and Engineering 1 (October 31, 2017): 175–81. http://dx.doi.org/10.14421/icse.v1.297.

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Indonesia is an archipelago country so rich with coral reefs that are a major component of the carbonate rock constituents. Where as much as 40% of carbonate rocks in Indonesia is a hydrocarbon reservoir is still rarely done exploration. This is because conventional hydrocarbon exploration technology has not been able to provide detailed information about the physical quantities. Hydrocarbon exploration technologies currently leads on digital technology to know the physical quantities of a reservoir of more detail such as porosity. Porosity which is physical quantities related to the presence

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6

Rifkin, Riaan F. "Engraved art and acoustic resonance: exploring ritual and sound in north-western South Africa." Antiquity 83, no. 321 (2009): 585–601. http://dx.doi.org/10.1017/s0003598x00098859.

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At a hill-top site in the Korrannaberg, where there is a water source and a sandy arena embraced by a rocky ridge, the author persuasively evokes a lively prehistoric ritual centre, with rock gongs, reverberating echoes, dancing and trance.

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7

Su, Tian Ming, Xiao Liang Zhang, and Jin Quan Zhang. "Early Warning Technique for Rock Fall of Road in Mountainous Terrain." Applied Mechanics and Materials 256-259 (December 2012): 1797–801. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.1797.

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Aim at the difficulty of disaster early warning of rock fall of highway in mountain areas, a new idea, sound and light integrated disaster early warning technique for moving vehicles in mountain areas, was proposed. A new type of traffic sign was designed which can receive the monitoring data of dangerous rocks of road slope and make early warning in the way of sound and light when the rock fall is going to occur or is occurring, the structure and function of the new traffic sign was developed, and technical requirements and installation problems were also discussed.

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8

Wolfers, Pierre, Gerard Fillion, B. Ouladdiaf, Rafik Ballou, and P. Rochette. "The Pyrrhotite 32 K Magnetic Transition." Solid State Phenomena 170 (April 2011): 174–79. http://dx.doi.org/10.4028/www.scientific.net/ssp.170.174.

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Pyrrhotite [1] is a common ferrimagnetic mineral in terrestrial rocks and has been identified recently as the major remanence carrier in Martian rocks, as in SNC (Shergotty-Nakhla-Chassigny) type meteorites. This compound undergoes a low temperature magnetic transition around 32 K with a change in the natural magnetic remanence [2]. This transition is going to be of growing importance in paleomagnetism and rock magnetism. To determine the structure change at 32K neutron diffraction was performed on two crystal samples at 50K and 20K (D10-ILL). Based on the magnetic torque measurements, perform

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9

Orozco-Centeno, Wendy Patricia, Jhon Willian Branch Bedoya, and Jovani Alberto Jiménez-Builes. "Classification of fine-grained igneous, sedimentary and metamorphic rocks through structured programming." Boletín de Ciencias de la Tierra, no. 36 (July 1, 2014): 5–9. http://dx.doi.org/10.15446/rbct.n36.44037.

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The study of rocks has become more important, because through the rocks analysis I can be obtained information that can be useful in a lot of fields from mining to construction, passing through many different action fields from materials to processes. In order to analyze the rocks is required a preliminary macroscopic examination of several samples from the field in which one is going to work. The objective of this study is to describe properties such as color, hardness, texture, etc. Then we proceed to do a microscopic analysis, for that we use thin sections that have been prepared in advance

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10

Rahić, Ognjenka, Amina Tucak, Merima Sirbubalo, Lamija Hindija, and Jasmina Hadžiabdić. "Antihypertensives’ Rock around the Clock." J 4, no. 1 (2021): 62–82. http://dx.doi.org/10.3390/j4010005.

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Although homeostasis is a commonly accepted concept, there is incontrovertible evidence that biological processes and functions are variable and that variability occurs in cycles. In order to explain and understand dysregulation, which has not been embraced by homeostatic principles, the allostatic model has emerged as the first serious challenge to homeostasis, going beyond its homeostatic roots. Circadian rhythm is the predominant variation in the body, and it is a pattern according to which many physiological and pathological events occur. As there is strong experimental and clinical eviden

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11

Gordeev, Vasily, Sergey Malyshkov, and Vitaly Polivach. "GEOPHYSICAL MONITORING OF TECHNOGENIC HAZARDS ON ANTHROPOGENIC SOILS." Interexpo GEO-Siberia 1, no. 2 (2019): 65–72. http://dx.doi.org/10.33764/2618-981x-2019-1-2-65-72.

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Rock stability estimation tasks on anthropogenic soils require both preliminary survey and on-going real-time monitoring providing alerts on possible cave-in threats. Using VLF monitoring data incorporated into software-hardware geodynamical processes automated surveillance system allows to accomplish that task. Authors describe a unique method, based on Earth’s natural pulsed electro-magnetic field (ENPEMF) recording and make conclusions on the efficiency of the solutions ap-plied for hazardous geodynamic processes monitoring on anthropogenic soils. The principle of the method is to distingui

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12

Fu, Jinwei, Shuli Liu, Lielie Li, and Jianzhou Wang. "A modelling resin material and its application in rock-failure study: Samples with two 3D internal fracture surfaces." Open Geosciences 12, no. 1 (2020): 1237–46. http://dx.doi.org/10.1515/geo-2020-0132.

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AbstractThe mechanism of fracture propagation, interaction and coalescence inside rock masses is a highly concerned issue in geotechnical engineering. But as it is difficult to manufacture 3D internal pre-fractures and observe directly the failure evolution process inside real rocks or their opaque similar materials, most previous studies have been limited to 2D conditions. The experiment investigation on 3D rock failure is still in a preliminary stage. In this study, a resin material has been developed by extensive formula tries. It is absolutely transparent and the ratio of tension–compressi

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13

Fagg, Catherine. "What Is a Lithophone - and What Is a Rock Gong?" Galpin Society Journal 47 (March 1994): 154. http://dx.doi.org/10.2307/842666.

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14

Kim, Bong Young, and Myungjin Bae. "A study on the sound investigation of wooden gong rock." Journal of the Acoustical Society of America 142, no. 4 (2017): 2606. http://dx.doi.org/10.1121/1.5014539.

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15

Marion, D., and A. Nur. "Pore‐filling material and its effect on velocity in rocks." GEOPHYSICS 56, no. 2 (1991): 225–30. http://dx.doi.org/10.1190/1.1443034.

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A new method estimates the dependence of P and S velocities in rocks on elastic properties of the pore‐filling material by going beyond Gassmann’s relations and accounting for pore‐filling materials with nonzero shear stiffness. The resulting estimates are in good agreement with experimental data and Gassmann’s relations for values of velocity in water‐saturated rocks predicted from velocity measured on dry rocks. The method successfully predicts the temperature dependence of velocity: (1) in frozen rocks at the ice‐water phase transition, and (2) in rocks saturated with heavy hydrocarbon unde

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16

Litvin, Yu A., A. V. Kuzyura, and E. B. Limanov. "The role of garnetization of olivine in olivine-diopside-jadeite system in the ultramafic-mafic evolution of the upper-mantle magmatism (experiment at 6 GPa)." Геохимия 64, no. 10 (2019): 1026–46. http://dx.doi.org/10.31857/s0016-752564101026-1046.

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Peritectic mechanisms, controlling fractional ultrabasic-basic evolution of the upper mantle magmatism and genesis of the peridotitepyroxeniteeclogite rock series, are substantiated in theory and experiment. Melting phase relations of a differentiated mantle material are studied with polythhermal section method in the multicomponent olivineclinopyroxene/omphacitecorundumcoesite system with boundary compositions duplicated these of peridotitic and eclogitic minerals. The peritectic reaction of orthopyroxene and melt with formation of clinopyroxene (the opthopyroxene clinopyroxenization reaction

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17

McMechan, M. E. "Walker Creek fault zone, central Rocky Mountains, British Columbia-southern continuation of the Northern Rocky Mountain Trench fault zone." Canadian Journal of Earth Sciences 37, no. 9 (2000): 1259–73. http://dx.doi.org/10.1139/e00-038.

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Walker Creek fault zone (WCFZ), well exposed in the western Rocky Mountains of central British Columbia near 54°, comprises a 2 km wide zone of variably deformed Neoproterozoic and Cambrian strata in fault-bounded slivers and lozenges. Extensional shear bands, subhorizontal extension lineations, slickensides, mesoscopic shear bands, and other minor structures developed within and immediately adjacent to the fault zone consistently indicate right-lateral displacement. Offset stratigraphic changes in correlative Neoproterozoic strata indicate at least 60 km of right-lateral displacement across t

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18

Nettesheim, Matthias, Todd A. Ehlers, David M. Whipp, and Alexander Koptev. "The influence of upper-plate advance and erosion on overriding plate deformation in orogen syntaxes." Solid Earth 9, no. 6 (2018): 1207–24. http://dx.doi.org/10.5194/se-9-1207-2018.

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Abstract. Focused, rapid exhumation of rocks is observed at some orogen syntaxes, but the driving mechanisms remain poorly understood and contested. In this study, we use a fully coupled thermomechanical numerical model to investigate the effect of upper-plate advance and different erosion scenarios on overriding plate deformation. The subducting slab in the model is curved in 3-D, analogous to the indenter geometry observed in seismic studies. We find that the amount of upper-plate advance toward the trench dramatically changes the orientation of major shear zones in the upper plate and the l

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19

Setyawan, Dendy. "Hydrocarbon Mapping on Reservoir Carbonate Using AVO Inversion Method." JPSE (Journal of Physical Science and Engineering) 6, no. 1 (2021): 19–25. http://dx.doi.org/10.17977/um024v6i12021p019.

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Amplitude Versus Offset (AVO) inversion has been applied for reservoir analysis focused on the horizon carbonate Peutu and Belumai. Simultaneous inversion analysis is used to determine gas anomaly inside carbonate-rocks and it’s spread laterally around target zones. It is based on the fact that small Vpand Vs value changes are going to show the better anomaly to identify reservoir fluid content. The AVO inversion method applies angle gather data as the input and then it is inverted to produce P impedance (Zp) and S impedance (Zs). Zp and Zs are derived to produce Lambda-Rho and Mu-Rho that are

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20

Ngo, Quy Tran Thien, Lan Thi Ngoc Nguyen, and Tuan Anh Nguyen. "Petrography characteristic and tectonic setting of Chau Thoi formation, Viet Nam." Science and Technology Development Journal 16, no. 2 (2013): 16–28. http://dx.doi.org/10.32508/stdj.v16i2.1428.

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The Late Paleozoic – Early Mesozoic sedimentary formations in the South – eastern region have exhumed incomplete, and they have more complex geological characteristics, related to the closure process of the Paleo-Tethys ocean and the Indosinian orogeny occured from late Permian to late Trias. Sedimentary sequences in this period were classifed to Ta Not, Hon Quan, Song Sai Gon and Chau Thoi formations. The results from researches on petrography at areas of Chau Thoi formation such as Chau Thoi, Buu Long, Minh Duc, Loc Thanh have indicated that the pyroclasic rocks such as tuff, agglomerate, tu

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21

Ilyatjari, Nganyintja. "Traditional Aboriginal Learning How I Learned as a Pitjantjatjara Child." Aboriginal Child at School 19, no. 1 (1991): 6–12. http://dx.doi.org/10.1017/s0310582200007288.

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As a child I lived at a place called Angatja. My father, mother, grandmother, older brothers, aunts, and uncles taught me there and I learned from them. My mother taught me about her bush foods. She collected the plant foods and prepared them and I learned by watching her. I learned also from my father. He taught about meat foods, cooking the meat, making spears, joining parts of the spears tightly with sinew and going out hunting for meat. My mother would take me out with her. We two went out together to collect small animals and plant foods, hitting sand goannas, and sometimes collecting bus

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22

Toyne, J. Marla, Armando Anzellini, Lori Epstein Mičulka, Ismael Mejías Pitti, Jordi Puig Castell, and Salvador Guinot Castelló. "Going Vertical." Advances in Archaeological Practice 6, no. 4 (2018): 298–311. http://dx.doi.org/10.1017/aap.2018.31.

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ABSTRACTMost archaeological practice involves horizontal excavations of ancient occupations and cemeteries, but the Chachapoya of Peru's eastern montane built tombs along narrow cliff ledges, which require innovative methods of investigation. Many of these sites are becoming exposed and threatened due to increased deforestation. The La Petaca mortuary complex includes 125 constructed platforms, modified ledges, mausoleums, and caves containing human remains across one section of an exposed rock face approximately 200 m across by approximately 80 m high. While the site has been looted and damag

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23

Hewett, Ivan, Martin Butler, Lontano, and Odaline de la Martinez. "Tin-Pan Ballet; Jazz Machines; On the Rocks; Going with the Grain." Musical Times 135, no. 1816 (1994): 398. http://dx.doi.org/10.2307/1003238.

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24

Rawal, J. J. "Are there rings around Pluto?" International Journal of Fundamental Physical Sciences 1, no. 1 (2011): 6–10. http://dx.doi.org/10.14331/ijfps.2011.330002.

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Considering effects of tidal plus centrifugal stress acting on icy-rocks and the tensile strength thereof, icy-rocks being in the density range (1–2.4) g cm-3 which had come into existence as collisional ejecta (debris) in the vicinity of Pluto at the time when Pluto-Charon system came into being as a result of a giant impact of a Kuiper Belt Object on the primordial Pluto, it is shown, here, that these rocks going around Pluto in its vicinity are under slow disruption generating a stable ring structure consisting of icy-rocks of diameters in the range (20–90) km, together with fine dust and p

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25

Jackson, Samuel J., and Samuel Krevor. "Characterization of Hysteretic Multiphase Flow from the MM to M Scale in Heterogeneous Rocks." E3S Web of Conferences 89 (2019): 02001. http://dx.doi.org/10.1051/e3sconf/20198902001.

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Incorporating mm-m scale capillary pressure heterogeneity into upscaled numerical models is key to the successful prediction of low flow potential plume migration and trapping at the field scale. Under such conditions, the upscaled, equivalent relative permeability incorporating capillary pressure heterogeneity is far from that derived conventionally at the viscous limit, dependent on the heterogeneity structure and flow rate, i.e. dependent on the capillary number. Recent work at the SCA 2017 symposium (SCA2017-022) demonstrated how equivalent functions can be obtained on heterogeneous rock c

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26

Prana, Antoni Wira. "Policy Directions of Geothermal Potential at Sembalun District of East Lombok Regency in Nusa Tenggara Barat Province, Indonesia." Sumatra Journal of Disaster, Geography and Geography Education 2, no. 1 (2018): 71. http://dx.doi.org/10.24036/sjdgge.v2i1.127.

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This research attempted to study physical characteristics of geothermal and formulate policy directions of geothermal potential through the process of ISM (Interpretative Structural Modelling) analysis in Sembalun District of East Lombok Regency. This descriptive qualitative research design used observation, interview, and documentation for collecting the data. Two types of data were collected, namely primary and secondary data. The result of ISM analysis on the data found that the geology of Sembalun area is the remains of an old volcano which has gone through destruction process with today’s

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27

Cai, Lin Zhen, and Cheng Liang Zhang. "Application of ABAQUS in Surrounding Rock Stability Analysis of Shallow Large Cross-Section Tunnel." Applied Mechanics and Materials 777 (July 2015): 8–12. http://dx.doi.org/10.4028/www.scientific.net/amm.777.8.

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HuJiaDi tunnel construction of Dai Gong highway is troublesome, the surrounding-rock mass give priority to full to strong weathering basalt, surrounding rock integrity is poor, weak self-stability of surrounding rock, and tunnel is prone to collapse. In order to reduce disturbance, taking advantage of the ability of rock mass, excavation adopt the method of "more steps, short footage and strong support". The excavation method using three steps excavation, The excavation footage is about 1.2 ~ 1.5 m; The surrounding rock bolting system still produce a large deformation after completion of the f

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28

Xia, Hong Chun, Ru Nan Zhang, and Wei Li. "Research on Surrounding Rock Control Technology in Two Hard Fully Mechanized Coal Mining." Advanced Materials Research 868 (December 2013): 343–46. http://dx.doi.org/10.4028/www.scientific.net/amr.868.343.

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The coal 8210 big mining height of the Datong mine Jin hua gong face in the process of mining airport coal pillar fried state a, floor deformation intense, serious kick drum, eventually leading to rock failure .In the severe cases, easily induced by shock pressure and other disasters ,these have serious impact on the efficient production of face security in the large mining height. by the airport side of roadway roof pressure relief, combined with roadway bolting reinforcement technology effectively control the deformation of surrounding rock of roadway, Test results show that the security mea

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29

Guo, Liwei, John-Paul Latham, and Jiansheng Xiang. "A numerical study of fracture spacing and through-going fracture formation in layered rocks." International Journal of Solids and Structures 110-111 (April 2017): 44–57. http://dx.doi.org/10.1016/j.ijsolstr.2017.02.004.

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30

Wang, Yu, and Feng Liu. "Experimental Investigation on Mechanical Properties of Soft Rock under Instantaneous Triaxial Compression." Advanced Materials Research 594-597 (November 2012): 218–21. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.218.

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Using the RMT-150C rock mechanics test system, the instantaneous triaxial compression tests for muddy siltstone were carried out under different confining pressures, and the instantaneous mechanical properties of soft rock were obtained. The results show that the strength parameters of sample have a positive linear relation with the confining pressure, and the sensitivity of peak strength on the confining pressure is higher than that of residual strength. The elastic and deformation modulus of sample linearly increase with the confining pressure going up, and the elastic modulus is more sensit

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31

Bennett, Andrew. "‘Going down the pub!’: The pub rock scene as a resource for the consumption of popular music." Popular Music 16, no. 1 (1997): 97–108. http://dx.doi.org/10.1017/s0261143000000714.

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In this article I want to consider the importance of the pub rock scene as a resource for the consumption of popular music. Considering its role as one of the primary sites for the production and consumption of live music, very little has been written about pub rock. Moreover, in those studies that have made reference to pub rock, emphasis has often been placed upon its role as a training ground for musicians and songwriters (see, for example, Laing 1985, p. 8), or as a stepping stone to full-time professional music-making rather than ‘a locally expressed and tangible manifestation of music in

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32

Khvostikov, V. A., S. N. Kuptsov, T. G. Petrov, and Pavel B. Sokolov. "Some features of linear scanning of the chemical composition of mineral aggregates using LA-ICP-MS: the modes and limits of the method." Industrial laboratory. Diagnostics of materials 87, no. 4 (2021): 13–20. http://dx.doi.org/10.26896/1028-6861-2021-87-4-13-20.

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A routine linear and 2D scanning procedure using the inductively coupled plasma mass spectrometry with laser ablation (LA-ICP-MS) is often used when studying the composition of zonal and polyphase solid objects (crystals, rocks, alloys, etc.). However, the proper interpretation of the data necessitates taking into account the features inherent to the procedure. One of the most important features of the results obtained for the objects contrasting in composition is the asymmetry of the concentration profile of elements when going from high to low and, to a lesser extent, when going from low to

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33

Chen, Donghui, Huie Chen, Wen Zhang, et al. "Buckling Failure Mechanism of a Rock Dam Foundation Fractured by Gentle Through-Going and Steep Structural Discontinuities." Sustainability 12, no. 13 (2020): 5426. http://dx.doi.org/10.3390/su12135426.

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The failure mechanism analysis of dam foundations is key for designing hydropower stations. This study analyses the rock masses in a sluice section, which is an important part of the main dam of the Datengxia Hydropower Station currently built in China. The stability of the sluice rock masses is predominantly affected by gentle through-going soft interlayers and steep structural fractures. Its foundation failure mechanism is investigated by means of a numerical method, i.e., Universal Distinct Element Code (UDEC) and the geomechanical model method. The modeling principle and process, and resul

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34

Miller, Brent V. "Introduction to Radiometric Dating." Paleontological Society Papers 12 (October 2006): 1–23. http://dx.doi.org/10.1017/s1089332600001327.

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Radiometric dating of rocks and minerals to constrain the age of the Earth, timing of geological events and paleobiological histories has its roots in the works of nuclear physicists of the early Nineteenth Century during the period of discovery of radioactivity and investigations into the nature of the atom. The intervening years since have seen great progress in using the long-lived radioactive elements to constrain the origin and evolution of the Earth and to place the rock and fossil record into a consistent, numerically quantifiable temporal framework.U-Th-Pb and40Ar/39Ar dating methods h

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35

Blancq, Charles, and Peter Guralnick. "Feel Like Going Home: Portraits in Blues & Rock 'n' Roll." American Music 3, no. 1 (1985): 101. http://dx.doi.org/10.2307/3052128.

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36

Komissarov, Sergei A., and Dmitry V. Cheremisin. "Petroglyphs that Have Become Extinct: Rock-Art of Makau." Oriental Studies 19, no. 4 (2020): 116–23. http://dx.doi.org/10.25205/1818-7919-2020-19-4-116-123.

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The article represents petroglyphs of Macau (Aomen). This site with engravings was lost and gone forever (because of industrial pollution), but we have some copies and descriptions of it. Though it was quiet restricted in dimensions, but contained not only interlacement of lines and geometric figures, but also images of two big boats as well, with quiet developed construction: with upper deck, long bowsprit and, possibly, with portable mast. The same ships but engraved more clearly one can see in petroglyphs of Zhuhai at the site with rock-art closest to Macau. These ships seem to have some ad

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37

Usborne, M., and B. Lee. "Going Beyond the Information Given: Seeing versus Seeing as." Perception 26, no. 1_suppl (1997): 19. http://dx.doi.org/10.1068/v970365.

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Variations in how we interpret ambiguous figures indicate that how a visual stimulus is perceived is determined by both its ‘objective’ visual pattern and the particular attitude we adopt towards it, ie what we see the stimulus as (Chambers and Reisberg, 1992 Cognitive Psychology24 145 – 174). We report two experiments in which (i) ambiguous figures and (ii) natural scenes have been used to examine the relationship between how an image is perceived and what that image means to an observer. In experiment 1 we used ‘invertible figures’ (images which when inverted portray different objects) to te

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38

Beiswenger, Toya N., Neal B. Gallagher, Tanya L. Myers, et al. "Identification of Uranium Minerals in Natural U-Bearing Rocks Using Infrared Reflectance Spectroscopy." Applied Spectroscopy 72, no. 2 (2017): 209–24. http://dx.doi.org/10.1177/0003702817743265.

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The identification of minerals, including uranium-bearing species, is often a labor-intensive process using X-ray diffraction (XRD), fluorescence, or other solid-phase or wet chemical techniques. While handheld XRD and fluorescence instruments can aid in field applications, handheld infrared (IR) reflectance spectrometers can now also be used in industrial or field environments, with rapid, nondestructive identification possible via analysis of the solid’s reflectance spectrum providing information not found in other techniques. In this paper, we report the use of laboratory methods that measu

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Glenn, Susan, Ian Butler, Brian Chapman, and Rebecca Rudman. "Biogeography of Mammals in Rocky Mountain National Parks." UW National Parks Service Research Station Annual Reports 16 (January 1, 1992): 23–24. http://dx.doi.org/10.13001/uwnpsrc.1992.3059.

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The first phase of the project was to determine which mammal species may have gone locally extinct from the national parks and which of these extinctions were in populations at the edge of their range. Susan Glenn met with Robert Schiller in the NPS Regional Office in Denver in July 1992. During this meeting, the validity of the park species lists was discussed. Only verified species records were being used and some groups of species had not been thoroughly inventoried in many of the parks. Species lists have not been obtained from some parks. Problems in species lists has been documented by t

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40

Floyd, James D., and Mark Williams. "A revised correlation of Silurian rocks in the Girvan district, SW Scotland." Transactions of the Royal Society of Edinburgh: Earth Sciences 93, no. 4 (2002): 383–92. http://dx.doi.org/10.1017/s0263593300000481.

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ABSTRACTIn late Ordovician and early Silurian times, the Girvan district lay in a shelf marinesetting on the margin of Laurentia, on the northern side of the Iapetus Ocean. The Lower Palaeozoic rocks of the Girvan district, and their shelly and graptolitic fossil fauna, were systematically described by Lapworth in 1882 and have formed an important research resource ever since. They provide valuable evidence for the depositional environment and geological setting of Girvan during the early Palaeozoic, in both regional and wider contexts, and demonstrate the long-recognised close affinity with c

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Feder, Judy. "NASA Prepares To Drill for the “Oil of Space”." Journal of Petroleum Technology 73, no. 04 (2021): 24–28. http://dx.doi.org/10.2118/0421-0024-jpt.

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“We’re going to the Moon, and we’re going there to stay this time,” has become a NASA mantra as the US competes with other countries, including China and Russia (https://jpt. spe.org/esa-roscosmos-to-mine-oxygen-water-from-moon-rocks-as-nasa-eyes-first-artemis-lunar-mission), to be the first to put humans on the Moon and Mars. The race will rely heavily on using resources available on the planetary bodies - or in-situ resource utilization (ISRU). Chief among these is water, which has been called “the oil of space.” As NASA prepares for Artemis mission astronauts to land on the Moon in 2024, it

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Honsberger, I. W., J. Laird, and J. E. Johnson. "A Laurentian margin subduction perspective: Geodynamic constraints from phase equilibria modeling of barroisite greenstones, northern USA Appalachians." GSA Bulletin 132, no. 11-12 (2020): 2587–605. http://dx.doi.org/10.1130/b35456.1.

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Abstract Phase equilibria modeling of sodic-calcic amphibole-epidote assemblages in greenstones in the northern Appalachians, USA, is compatible with relatively shallow subduction of the early Paleozoic Laurentian margin along the Laurentia-Gondwana suture zone during closure of a portion of the Iapetus Ocean basin. Pseudosection and isopleth calculations demonstrate that peak metamorphic conditions ranged between 0.65 GPa, 480 °C and 0.85 GPa, 495 °C down-dip along the subducted Laurentian continental margin between ∼20 km and ∼30 km depth. Quantitative petrological data are explained in the

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Richardson, Alastair, and Todd Walsh. "Geographical Variation in the Giant Freshwater Crayfish, Astacopsis gouldi: Deductions from a Large Opportunistic Database." Freshwater Crayfish 24, no. 1 (2019): 15–21. http://dx.doi.org/10.5869/fc.2019.v24-1.15.

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Abstract An on-going opportunistic tagging program marked almost 600 giant freshwater crayfish, Astacopsis gouldi, between 22-222 mm carapace length from 123 localities on 62 rivers in Tasmania since 1998. Eighty animals were recaptured once, 50 more than once, and the longest period between initial and latest capture was 8 years. These data were analysed to examine differences in size and growth between the sexes, between the disjunct eastern and western ranges of the species, and between catchments on nutrient-poor and nutrient-rich rocks. Male animals were heavier per unit length than femal

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Grochulski, Łukasz. "PRÓBA CHARAKTERYSTYKI ROCKOWYCH STACJI RADIOWYCH W POLSCE." Civitas et Lex 18, no. 2 (2018): 7–20. http://dx.doi.org/10.31648/cetl.2493.

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The offer of Polish radio stations is relatively extensive. Polish radio market offers many radiostations with diversified music profiles. This collection also includes rock radio stations. In thispaper, the main aim was to prove that rock radio stations in Poland have a special tastemakingand educational function, both by presenting varied subgenres of rock music and by demonstratinghistory and curosities of rock genre. In addition, they inform users about the most important,current music events. Their news shows are full of miscellaneous informations. Morning showsin those radio stations hav

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Shen, Wen Sheng. "The Study on Tunnel Surrounding Rock Displacement Prediction." Applied Mechanics and Materials 340 (July 2013): 85–89. http://dx.doi.org/10.4028/www.scientific.net/amm.340.85.

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The traditional regression analysis method cant effectively predict the final deformation of divisional excavation. This paper is going to propose prediction technique of piecewise nonlinear fitting according to deformation law of surrounding rock displacement during divisional tunneling, to construct piecewise nonlinear fitting function. Through comparative analysis in engineering application, it is proved that it can better meet the prediction need for surrounding rock deformation during information zing construction with its higher accurate prediction and correlation coefficient.

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Paktunc, A. Dogan. "Geochemical constraints on the tectonic setting of the mafic rocks of the Bathurst Camp, Appalachian Orogen." Canadian Journal of Earth Sciences 27, no. 9 (1990): 1182–93. http://dx.doi.org/10.1139/e90-125.

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Abundant mafic rocks comprising basalts and gabbros occur in the Bathurst Camp, a complexly deformed Ordovician terrane in northeastern New Brunswick. The mafic rocks form a consanguineous suite of aphyric lavas, subvolcanic sills, and (or) dikes. Gabbros and basalts have somewhat similar major-element compositions but differ in terms of their trace-element contents. Medium-grained gabbros display tholeiitic compositions, whereas basalts and fine-grained gabbros have alkalic affinities. In general, trace-element abundances indicate an enriched source region for the Bathurst mafic rocks. Trace-

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Huet, Thomas. "New Perspectives on the Chronology and Meaning of Mont Bégo Rock Art (Alpes-Maritimes, France)." Cambridge Archaeological Journal 27, no. 2 (2016): 199–221. http://dx.doi.org/10.1017/s0959774316000524.

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In 1994, H. de Lumley's teams of researchers finished the colossal task—initiated more than 20 years earlier—of recording every pecked rock engraving of Mont Bégo's rock art. The following year, in the book Le grandiose et le sacré, Lumley defined the site as a sacred mountain and attributed rock engravings, considered as ex-votos, to the Early Bronze Age and the Bell Beaker period. However, it is hard to recognize what interpretations can be directly drawn from the data: some exceptional rock engravings are considered as representative of the whole corpus of rock engravings and the most numer

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Mokritskaya, T. P. "On different types, conditions, and factors of landslide risks in the city of Dnipro." Journal of Geology, Geography and Geoecology 28, no. 3 (2019): 495–503. http://dx.doi.org/10.15421/111945.

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The paper represents the research results as for the factors of such dangerous geological phenomenon as landslides in terms of geological medium of the city of Dnipro. It is emphasized that there are certain geological, geomorphological, and hydrogeological conditions favouring the development of a medium for landslide formation. Irrespective of long-term study of that phenomenon, spatiotemporal prognosis is a complex scientific problem requiring application of innovative ideas and scientific statements concerning both separate components of a geological medium and rather complex natural and t

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Fang, Tiancheng, Fushen Ren, Baojin Wang, Jianxun Cheng, and Hanxu Liu. "Particle jet impact deep-rock in rotary drilling: Failure process and lab experiment." PLOS ONE 16, no. 4 (2021): e0250588. http://dx.doi.org/10.1371/journal.pone.0250588.

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Aimed at the technical problems of low drilling speed and difficult rock-breaking in deep-well and hard rock-stratum, particle waterjet coupled impact rock-breaking technology in rotary drilling is put forward in this paper. Firstly, the working principle of particle jet impact rock-breaking in rotary drilling was introduced, and the acceleration model of particle jet and the damage model of rock were established. The acceleration mechanism of particles and dynamic damage evolution process of rock under particle jet were studied, which showed that the broken pit and rock damage would increase

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Cai, Jin Hang. "The Accumulation Rules of Budate Burial Hill Hydrocarbon Reservoir of Suderte Oilfield in Hailar Basin." Applied Mechanics and Materials 733 (February 2015): 140–43. http://dx.doi.org/10.4028/www.scientific.net/amm.733.140.

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Metamorphic rock burial hill reservoir of Beier rift in Hailaer Basin, with large scale reservoir and high output has complex fault system. The fault through going direction roughly is NEE direction, and has wide fault section and lateral quickly changed fault displacement. Metamorphic rock reservoir can be divided into the vertical weathered fracture zone, crack and dissolved pores and caves development belt and tight zone. Accumulation is controlled by hydrocarbon ability of source rock, contacting relationship of source rock and reservoir, oil storage ability of reservoir, and vertical and

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