Results 41 to 50 of about 4,153 (178)

Formation conditions of deep to ultra-deep large composite buried-hill hydrocarbon reservoirs in offshore Bohai Bay Basin, China

Petroleum Exploration and Development
Based on the data from 3D seismic surveys, drilling, sidewall coring, thin sections, and tests, this paper analyzes Meso-Cenozoic geotectonic dynamics, buried-hill reservoir characteristics, and differential enrichment patterns of oil and gas in the ...
Changgui XU, Haifeng YANG, Feilong WANG, Jingsong PENG   +3 more
doaj   +1 more source

Petrogenesis and relationship with REE mineralization of the quartz syenite from Chishan and Longbaoshan alkaline complex, southeastern North China Craton: Insights from zircon U–Pb geochronology, element, and Sr–Nd–Pb–Hf isotope geochemistry

Frontiers in Earth Science, 2023
Mesozoic alkaline complexes associated with the rare earth element (REE) mineralization are developed in southeastern North China Craton (NCC), and they recorded some important information about the lithospheric thinning and destruction of the NCC ...
Pengfei Wei, Dapeng Li, Zhigang Song, Zhigang Song, Qiang Liu, Ke Geng, Yan Zhang, Chengwu Ding, Na Cai, Zengsheng Li, Chao Zhang, Wei Xie   +11 more
doaj   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

Brittle Structural Control and Fluid Progress of the Jinqingding Gold Deposit: Implications for Epizonal Gold Mineralization

Acta Geologica Sinica - English Edition, EarlyView.
ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt. This study integrates structural analysis and trace element geochemistry of sulphides to elucidate ore‐controlling mechanisms and metallogenic models.
Xiaohu Wang, Yuke Shen, Changshan Wei, Fengbin Han, Tao Guo, Huisheng Wang, Jiantao Yu, Yubo Song, Bo Wang, Longji Gong, Guijie Li   +10 more
wiley   +1 more source

Late Mesozoic Intracontinental Deformation in the Northern Margin of the North China Craton: A Case Study From the Shangyi Basin, Northwestern Hebei Province, China

Frontiers in Earth Science, 2021
During the late Mesozoic, the East Asian continent underwent a complex tectonic history due to multiple episodes of plate convergence. How the crust responds to the multiple plate convergence in the North China Craton (NCC) remains unclear.
Qian Yang, Qian Yang, Qian Yang, Wei Shi, Wei Shi, Guiting Hou, Yu Zhang, Yilin Zhao, Yilin Zhao, Yilin Zhao   +9 more
doaj   +1 more source

An overview of the characteristic of typical Wufeng–Longmaxi shale gas fields in the Sichuan Basin, China

Natural Gas Industry B, 2021
The Wufeng Formation–Longmaxi Formation in the Sichuan Basin in South China is the key stratum for shale gas exploration and production. To date, three national shale gas demonstration zones have been developed.
Haikuan Nie, Qian Chen, Guangrong Zhang, Chuanxiang Sun, Pengwei Wang, Zhiyuan Lu   +5 more
doaj   +1 more source

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

High-Temperature Deformation in the Tan-Lu Fault Zone: Constraints on an Early Cretaceous Transtensional Regime

Applied Sciences
How continental lithosphere stretches and ruptures is a fundamental question in Earth sciences; however, effective constraints on the physical conditions deep within the crust where deformation is concentrated remain elusive.
Fang Yuan, Chuanzhong Song
doaj   +1 more source

Geochemical criteria for identifying diamond-bearing areas [PDF]

E3S Web of Conferences
The paper demonstrates that diamondiferous objects may be pinpointed even by the middle-scale geochemical surveys. Relevant criteria were developed to identify and classify such objects by their prospectivity.
Krinochkin Lev, Kilipko Victor, Trofimov Alexander, Krinochkina Olga, Mamina Dinya   +4 more
doaj   +1 more source

Early cretaceous ridge subduction in the Shandong Peninsula, Eastern China, indicated by Laoshan A-type granite

Frontiers in Earth Science, 2023
Early Cretaceous A-type granites are widespread in the Shandong Peninsula, which can be used to elucidate the tectonic evolution of the eastern China and the destruction of the North China Craton. However, their genesis is still controversial.
Jie Li, Jie Li, He Li, He Li, Congying Li, Congying Li, Mingchun Song, Mingchun Song, Mengyao Jiang, Shuai Yuan, Shuai Yuan, Lipeng Zhang, Lipeng Zhang   +12 more
doaj   +1 more source