Results 71 to 80 of about 5,414 (202)

Black Shale Lithofacies of the Wufeng–Longmaxi Formation in the Southeast Margin of Chongqing, China

Geofluids, Volume 2025, Issue 1, 2025.
China’s shale gas has undergone nearly 20 years of exploration; unconventional oil and gas geological evaluation theories and research methods have been greatly enriched, but how to quickly, conveniently, and accurately identify the sweet spots of shale gas is still puzzling many researchers. This study focuses on the black shale of the Wufeng–Longmaxi
Junqing Liu, Qisen Gong, Chenye Guo, Shuang Du, Kai Wang, Bin Wu, Shihong Xiao, Lei Wen, Ping Guo, Zhihui Zhao, Leyi Zhang, Ping Lei, Zhiqiang Fan   +12 more
wiley   +1 more source

The Guluoping section and the understanding of the Stimulograptus sedgwickii graptolite Biozone on the South China Platform (Yangtze Platform) [PDF]

Swiss Journal of Palaeontology
The uppermost Aeronian (Llandovery, Lower Silurian) Stimulograptus sedgwickii Biozone, as found in the Guluoping section, Hubei Province, China, and its correlation are discussed. This interval has rarely been recognized in China.
Chuanshang Wang, Jörg Maletz, Xiaofeng Wang   +2 more
doaj   +3 more sources

NMR‐Based Quantitative Characterization of Water Imbibition in Deep Shale Rocks Under Different Pressures and Temperatures

Geofluids, Volume 2025, Issue 1, 2025.
Unconventional tight/shale gas reservoirs have gained significant attention in the energy sector. The importance of temperature and pressure in shale imbibition lies in their profound influence on the kinetics, rate, and ultimate amount of water uptake, which directly impacts the efficiency of gas production.
Kaishuo Yang, Cheng Chang, Weiyang Xie, Yizhao Chen, Xingchen Wang, Fanxiang Xu, Xinhao Gong, Dunqing Liu, Tianshou Ma   +8 more
wiley   +1 more source

Shale gas enrichment pattern and exploration significance of Well WuXi-2 in northeast Chongqing, NE Sichuan Basin

Petroleum Exploration and Development, 2016
The shale gas enrichment pattern of Well Wuxi-2 in northeast Chongqing was studied, based on the data of the drilling, graptolite biostratigraphy, geochemistry, rock minerals, microscopic characteristics of reservoir beds and tectonic conditions, etc ...
Feng LIANG, Wenhua BAI, Caineng ZOU, Hongyan WANG, Jin WU, Chao MA, Qin ZHANG, Wei GUO, Shasha SUN, Yanming ZHU, Huiying CUI, Dexun LIU   +11 more
doaj   +1 more source

The use of X-ray computed microtomography for graptolite detection in rock based on core internal structure visualization

, 2017
This paper presents for the first time X-ray computed microtomography (μCT) analysis as a technique for Silurian graptolite detection in rocks. The samples come from the Jantar Bituminous Claystones Member of the Opalino core, Baltic Basin, northern ...
Ł. Kaczmarek, A. Kozłowska, Michał Maksimczuk, T. Wejrzanowski   +3 more
semanticscholar   +1 more source

A database of detrital zircon geochronology ages of Cambrian to Paleogene deposits in South China

Geoscience Data Journal, Volume 11, Issue 4, Page 405-413, October 2024.
Here, we had collect a database about the South China Phanerozoic detrital zircon geochronology data, and we published the database in DDE. We marked Kernel density estimates, ɛHf(t) vs. U‐Pb ages and the best age‐based multidimensional scaling plot from South China. Abstract Complications of detrital zircons databases provide a means for statistically
Tianle Xia, Kuizhou Li, Lisha Hu, Zilin Zhao, Yu Huang, Qianli Ma, Liang Qi   +6 more
wiley   +1 more source

The fossil vertebrate primary type specimens in the collection of the University of Otago Department of Geology

Journal of the Royal Society of New Zealand, Volume 54, Issue 5, Page 566-583, October 2024.
ABSTRACT The 47 vertebrate type specimens held in the University of Otago Geology Department are catalogued in detail. A short history of the collection is followed by lists of the type specimens under the Classes Actinopterygii, Reptilia, Aves and Mammalia. A fish trace‐fossil is included at the end of the Actinopterygii.
Jeffrey H. Robinson, Daphne E. Lee, Marcus D. Richards, Sophie E. M. White, R. Ewan Fordyce   +4 more
wiley   +1 more source

Lower–Middle Ordovician brachiopods from the Eastern Cordillera of Peru: evidence of active faunal dispersal across Rheic and Iapetus oceans

Papers in Palaeontology, Volume 10, Issue 5, September/October 2024.
Abstract New Floian and early middle Darriwilian brachiopod assemblages of the San José Formation of the Eastern Cordillera of Peru are presented. A new genus and species, Apurimella santiagoi, and two new species, Phragmorthis henrylunae and Nocturnellia ashaninka, are described.
Jorge Colmenar, César Augusto Chacaltana, Juan Carlos Gutiérrez‐Marco   +2 more
wiley   +1 more source

The Range and Evolution Model of the Xiang-E Submarine Uplifts at the Ordovician–Silurian Transition: Evidence from Black Shale Graptolites

Journal of Marine Science and Engineering
Accurately delineating the range of the Xiang-E submarine uplifts is the key to the exploration and development of Silurian shale gas in the Western Hunan–Hubei region.
Zhi Zhou, Hui Zhou, Zhenxue Jiang, Shizhen Li, Shujing Bao, Guihong Xu   +5 more
doaj   +1 more source

Lithofacies and sedimentary characteristics of the Silurian Longmaxi Shale in the southeastern Sichuan Basin, China

Journal of Palaeogeography, 2013
The Silurian Longmaxi Shale (SLS) is the target for shale gas exploration and exploitation in the southeastern Sichuan Basin. Based on detailed description of cores and outcrops, analysis of Gamma Ray (GR) logs, thin sections and mineralogical data, the ...
Jiang Zaixing, Guo Ling, Liang Chao
doaj   +1 more source