Results 1 to 10 of about 3,385 (255)

Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China

Petroleum Exploration and Development, 2018
Based on GC-MS data of saturate and aromatic hydrocarbon fractions in crude oils from Well TD 2 and the Yingmaili and Tazhong area in the Tarim Basin, the end-member oil derived from Cambrian-Lower Ordovician source rocks was determined.
Jianping BAO, Cuishan ZHU, Zhifeng WANG
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Geological evaluation and gas bearing analysis for shale reservoir in Ziyun-Luodian typical area of southern Guizhou province, China

Frontiers in Earth Science, 2022
The Ziyun-Luodian area of southern Guizhou province in China is chosen as the research area and the Dawuba formation in Carboniferous system is the target stratum in this paper.
Keying Wang, Keying Wang, Ningbo Cai, Ningbo Cai, Ningbo Cai, Jiang Du, Jiang Du, Shuhua Gong, Shuhua Gong, Yan Li, Yan Li   +10 more
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Highly fractionated chromium isotopes in Mesoproterozoic-aged shales and atmospheric oxygen

Nature Communications, 2018
There is a long standing debate whether low atmospheric oxygen levels during the Mesoproterozoic Era hindered the evolution of crown-group animals. Here, the authors show with shale-hosted chromium isotopes that sufficient atmospheric oxygen for crown ...
Donald E. Canfield, Shuichang Zhang, Anja B. Frank, Xiaomei Wang, Huajian Wang, Jin Su, Yuntao Ye, Robert Frei   +7 more
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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
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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
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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
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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
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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
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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
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Spatial distributions and the main driving factors of soil total nitrogen in Zhejiang Province, China

Geoderma
Nitrogen is an indispensable element in the growth and development stages of various crops, as well as an important component of soil nutrients. It plays an important role in farmland ecosystems.
Mi Tian, Binbin Sun, Chao Wu, Xiaomeng Cheng, Guohua Zhou, Chunlei Huang, Yining Zhou, Qinghai Hu, Longxue Li   +8 more
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