Results 51 to 60 of about 474 (171)

Geological Characteristics and Metallogenic Regularity of Copper Deposits in Ningxia

Kuangchan zonghe liyong
This is an article in the field of earth sciences. The copper resources in Ningxia are relatively poor, and 15 copper producing areas have been basically identified, of which 6 deposits have been explored, and the accumulative amount of copper metal has ...
Maoxin LU, Liange XIANG, Hong WANG, Donggang WANG, Fenghua MA, Tong LI   +5 more
doaj   +1 more source

GEOCHEMICAL CHARACTERISTICS OF TIANMENSHAN COMPOSITE PLUTON, SOUTH CHINA

Геодинамика и тектонофизика, 2017
The southern Jiangxi province is located at east Nanling range, which is an important W-Sn metallogenic province of China. The Early Yanshanian Tianmenshan is composed of the main-phase porphyritic biotite granite and the highly differentiated fine ...
Yanjiao Chen, Bin Chen, Xiaoxia Duan
doaj   +1 more source

Is the Jurassic (Yanshanian) intraplate tectonics of North China due to westward indentation of the North China block? [PDF]

Terra Nova, 2012
Terra Nova, 24, 333–338, 2012AbstractThe northern mountains of Beijing are the type locality of the Mesozoic Yanshanian orogen. Our structural study emphasizes the importance of dextral strike‐slip for the formation of this intracontinental belt. The South‐ and North‐directed thrusts are positive flower structures rooted in strike‐slip faults.
Faure, Michel, Lin, Wei, Chen, Yan
openaire   +2 more sources

Quantitative Provenance Analysis of the Yangtze and Yellow River Sediments Through Detrital Zircon U‐Pb Geochronology Using an XGBoost Machine Learning Algorithm

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract Over the past two decades, a large number of zircon U‐Pb ages from the Yangtze and Yellow River Basins have been published, yet distinguishing the sources of sediment between these regions remains challenging. Issues related to sampling, analytical methods, and biases complicate the interpretation of detrital zircon geochronology.
X. T. Huang, Y. L. Guo, P. Wang, S. V. Hohl, X. L. Zhao, Y. L. Li, S. Y. Yang   +6 more
wiley   +1 more source

Evaluation of Favorable Fracture Area of Deep Coal Reservoirs Using a Combination of Field Joint Observation and Paleostress Numerical Simulation: A Case Study in the Linxing Area

Energies
The development of fractures under multiple geological tectonic movements affects the occurrence and efficient production of free gas in deep coal reservoirs.
Shihu Zhao, Yanbin Wang, Yali Liu, Zengqin Liu, Xiang Wu, Xinjun Chen, Jiaqi Zhang   +6 more
doaj   +1 more source

Stable Isotope Characteristics and Recharge Mechanisms of River, Lake and Groundwater by Precipitation in the Hulun Lake Basin

Hydrological Processes, Volume 39, Issue 6, June 2025.
Filling the gap in refined research on multimedia hydrological processes during wet seasons in a typical semi‐arid lake basin. The characteristics of δD and δ18O values of the precipitation, river water, lake water and groundwater and their relationships were elaborated, and the recharge rates were calculated among them by using the endmember element ...
Chen Du, Xiangzhen Kong, Dunping Sun, Yufei Xue, Can Zhang, Bin Xue   +5 more
wiley   +1 more source

Geological reassessment of syn‐rift extensional sequences in the Shine Usny Tolgod and Dzun Shakhai fossil localities, Eastern Gobi Basin, Mongolia

Sedimentology, Volume 72, Issue 4, Page 1275-1315, June 2025.
ABSTRACT Sedimentary infill patterns in the Eastern Gobi Basin of southern Mongolia record a complex, polyphased history. Asynchronous timing and intensities of extensional tectonism during the Early Cretaceous fragmented the Eastern Gobi Basin into a series of sub‐basins within an extensional rift (horst‐graben) setting, which likely infilled ...
Jesse Benjamin van Niekerk, Ryan T. Tucker, Puntsag Delgerzaya, William J. Freimuth, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Junki Yoshida, Lindsay E. Zanno   +7 more
wiley   +1 more source

A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras. The genesis of these deposits has been primarily ascribed to magmatic‐hydrothermal or crustal‐metamorphic fluid models. The Hadamengou gold deposit (>170 t Au), the largest
Tingting Xiao, Deyou Sun, Cheng Xu, Zhendong Tian, Anbo Luo, Changzhou Deng, Runsheng Yin   +6 more
wiley   +1 more source

Zircon SHRIMP U-Pb dating of the Neogene coral reefs, Xisha Islands, South China Sea: implications for tectonic evolution

China Geology, 2018
: The Xisha Block is a minor one in the South China Sea and an important tectonic unit in the northwestern part of the region. Zircon SHRIMP U-Pb ages for three volcanic intrusive core samples from Xike-1, an exploratory well penetrating the bioherms of ...
Hong Xu, Zhao-peng Ji, Shan-ying Li, Yan-qiou Yang, Shou-jie Liu, Hai-yang Zhang, Shu-shen Lu, Tong-qiang Shi, Meng Tao, Na Qin, Wei-wei Zhang, Da-peng Su, Long-wei Qiu   +12 more
doaj   +1 more source

Ten Questions of East Asian Tectonics

Acta Geologica Sinica - English Edition, Volume 99, Issue 2, Page 297-319, April 2025.
Abstract East Asian continental tectonics challenges the plate tectonics paradigm with its diffuse intraplate deformation, magmatism, and earthquakes. Despite extensive studies, fundamental questions persist. This review examines ten critical questions of East Asian tectonics, including the thickness of the continental lithosphere, the origin of the ...
Mian LIU
wiley   +1 more source