Results 21 to 30 of about 60,050 (341)

Modeling the Viscoelastic Behavior of Quartz and Clay Minerals in Shale by Nanoindentation Creep Tests

Geofluids, 2022
The viscoelastic behavior of minerals in shales is important in predicting the macroscale creep behavior of heterogeneous bulk shale. In this study, in situ indentation measurements of two major constitutive minerals (i.e., quartz and clay) in Longmaxi ...
Jianfeng Wang, Yuke Liu, Chao Yang, Wenmin Jiang, Yun Li, Yongqiang Xiong   +5 more
doaj   +1 more source

Quantitative Measurement of Retained Oil in Organic-Rich Shale—A Case Study on the Chang 7 Member in the Ordos Basin, China

Frontiers in Earth Science, 2021
This study proposes a method to calculate the retained oil content (WO) in cores collected by a sealed tool from organic-rich shale with thermal maturity around%Ro = 0.8 in the Ordos Basin, China.
Lianhua Hou, Xia Luo, Senhu Lin, Zhongying Zhao, Yong Li   +4 more
doaj   +1 more source

The Formation Mechanism and Geological Significance of Graptolite from the Longmaxi Formation: Constraints from in situ Multi-element Imaging Analysis

Yankuang ceshi, 2019
BACKGROUND The black shale of the Longmaxi Formation in the Upper Yangtze region is rich in graptolites. Most of them were preserved as a carbonaceous film, and enriched in organic-rich layers.
ZHU Cheng-lin, WANG Hua-jian, YE Yun-tao, WANG Xiao-mei, HUANG Jia-xuan, ZHU Yu-mei, YANG Rui-dong   +6 more
doaj   +1 more source

Platinum group element mineralization at Musongati (Burundi) : concentration and Pd-Rh distribution in pentlandite [PDF]

, 2017
The mafic-ultramafic intrusions of the Karagwe-Ankole belt in Burundi are considered as a new potential source for platinum group elements (PGE). The intrusions have mainly been studied for their PGE potential with regard to PGE concentration, but the ...
Dewaele, Stijn, Muchez, Philippe, Paredis, Bram   +2 more
core   +1 more source

Geochemistry of As-, F- and B-bearing waters in and around San Antonio de los Cobres, Argentina, and implications for drinking and irrigation water quality [PDF]

, 2011
Spring, stream and tap waters from in and around San Antonio de los Cobres, Salta, Argentina, were sampled to characterize their geochemical signatures, and to determine whether they pose a threat to human health and crops.
Aiuppa, Ballantyne, Bennett, Berger, Blasco, Brookins, Carton, Concha, Concha, Concha, De la Fuente, De Sastre, De Vitre, Deer, Ellis, Fiorentino, Gupta, Hedenquist, Hem, Hudson-Edwards, Hudson-Edwards, Jain, Jane Archer, Karen A. Hudson-Edwards, Katsoyiannis, Langner, Leyshon, Lloyd, Maas, Mayayo, Meng, MRA-UGAN Minería de la República Argentina-Unidad de Gestión Ambiental Nacional, Mroczek, Munshower, Nordstrom, Parks, Pesce, Reutter, Rowe, Sainato, Smedley, USEPA, USEPA United States Environmental Protection Agency, Vahter, Vahter, Water Quality Guidelines, Webster, Webster, Welch, WHO, WHO, WHO, WHO, WHO World Health Organization, Wilkie, Yokoyama   +55 more
core   +1 more source

Gulong shale oil enrichment mechanism and orderly distribution of conventional– unconventional oils in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

Petroleum Exploration and Development, 2023
Through the study of organic matter enrichment, hydrocarbon generation and accumulation process of black shale of the Cretaceous Qingshankou Formation in the Songliao Basin, the enrichment mechanism of Gulong shale oil and the distribution of ...
Shuichang ZHANG, Bin ZHANG, Xiaomei WANG, Zihui FENG, Kun HE, Huajian WANG, Xiuli FU, Yuke LIU, Chunlong YANG   +8 more
doaj   +1 more source

Discriminating cool-water from warm-water carbonates and their diagenetic environments using element geochemistry: the Oligocene Tikorangi Formation (Taranaki Basin) and the dolomite effect [PDF]

, 2004
Fields portrayed within bivariate element plots have been used to distinguish between carbonates formed in warm- (tropical) water and cool- (temperate) water depositional settings.
Al‐Aasm I. S., Al‐Hashimi W, Brand U., Brand U., Hood S. D., Hood S. D., Hood S. D., James N. P., Lumsden D. N., Morrison J. O., Morse J. W., Rao C. P., Tucker M., Veizer J., Winefield P.   +14 more
core   +2 more sources

Hydrogen isotope of natural gas from the Xujiahe Formation and its implications for water salinization in central Sichuan Basin, China

Journal of Natural Gas Geoscience, 2019
Based on the analysis of the molecular composition as well as carbon and hydrogen isotopes of gases from the Upper Triassic Xujiahe and other formations in the Sichuan Basin in China, by combining previous research results and regional geological ...
Yunyan Ni, Fengrong Liao, Limiao Yao, Jinliang Gao, Dijia Zhang   +4 more
doaj   +1 more source

Using coupled bulk-rock geochemistry and short-wave infrared (SWIR) spectral reflectance data as rapid exploration tools in metamorphosed VHMS deposits: insights from the King Zn deposit, Yilgarn Craton, Western Australia. [PDF]

Miner Depos
Dana CDP, Hollis SP, Podmore D, James M, Azri R.   +4 more
europepmc   +3 more sources

The Geophysical Properties of FeHx Phases Under Inner Core Conditions

Geophysical Research Letters, 2023
Hydrogen has been proposed as an important light element in planetary iron cores, while the crystal structure and thermoelasticity of FeHx (x = 1) (FeH hereafter) under inner core conditions remain largely unknown.
Hua Yang, Peixue Dou, Tingting Xiao, Yunguo Li, Joshua M. R. Muir, Feiwu Zhang   +5 more
doaj   +1 more source