Results 131 to 140 of about 474 (171)
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Revisiting of the Yanshanian basins in western and northern Beijing, North China
Journal of Asian Earth Sciences, 2018Abstract We present new laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) zircon U–Pb ages and provenance data for the Yanshanian basins in western and northern Beijing, North China, with the aims of demonstrating the relationship between basin evolution and “Yanshanian tectonism” and constraining the Late Jurassic–Early ...
Shuan-Hong Zhang
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Science China Earth Sciences, 2018
The relationship between the Yanshanian Movement, destruction of the North China Craton (NCC), and subduction of the western Pacific plate is crucial to reconstructing the middle-late Mesozoic tectonic evolution of the eastern Asian continent and margin. The Yanshanian Movement was a globally important change in crustal tectonics during the Middle-Late
Yu Wang, Liyun Zhou
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The relationship between the Yanshanian Movement, destruction of the North China Craton (NCC), and subduction of the western Pacific plate is crucial to reconstructing the middle-late Mesozoic tectonic evolution of the eastern Asian continent and margin. The Yanshanian Movement was a globally important change in crustal tectonics during the Middle-Late
Yu Wang, Liyun Zhou
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Early Yanshanian post-orogenic granitoids in the Nanling region
Science in China Series D: Earth Sciences, 2002Peirong Chen +2 more
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On the genetic classification and tectonic implications of the Early Yanshanian granitoids in the Nanling Range, South China [PDF]
Science Bulletin, 2007 Early Yanshanian (Jurassic) granitoids are widespread in the Nanling Range of South China, and are associated with numerous non-ferrous and rare metal mineral deposits. These granitoids consist mainly of slightly peraluminous biotite monzogranites and K-feldspar granites that are closely associated in time and space with subordinate amphibole-bearing ...
Xian-Hua Li +2 more
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What is the main mechanism for the Yanshanian magmatism?
AIP Conference Proceedings, 2012We take the quantitative assessment of underplating and delamination mechanism of Yanshanian magmatism. The compare results show the delamination mechanism can supply about 340 times more heat flux than the underplating mechanism and match the surface two magmatism distribution regions.
Qiao Yanchao +3 more
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Ore Geology Reviews, 2021 Abstract The connection between the Mesozoic metallogenic explosion and the tectonic evolution in the Western Pacific Continental Margin (WPCM) is a frontier theme of research. The wide-scale mineralization is the product of an extensive tectono-magmatic-hydrothermal event where the distribution of mineral deposit types is linked to the geodynamic ...
Chong Jin, Yanhui Suo, Sanzhong Li
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Sulfur Isotopic Variation of Yanshanian Magmatic-hydrothermal Deposits in Southern China
Resource Geology, 2000Abstract: Sulfur isotope data (δ34S) of sulfides of more than 6700 samples from 157 ore deposits associated with Early and Late Yanshanian granitic and volcanic activities in South China are reviewed and summarized. Averaged δ34S values of individual deposits vary from ‐9. 3 to +20.
Shunso Ishihara
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The Yanshanian Movement in Western Liaoning, northeastern North China Craton
Earth-Science ReviewsChenyue Liang +2 more
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Petrogenesis and metallogenesis of the Yanshanian adakite-like rocks in the Eastern Yangtze Block
Science in China Series D Earth Sciences, 2003Many of the Yanshannian intermediate-acid intrusive rocks related to Cu-Au mineralization in the Eastern Yangtze Block are characterized by high Al 2 O 3 , Sr contents, while low in Y, Yb contents, thus with high Sr/Y, and La/Yb ratios, and variational isotope signatures in particular, e.g.
Wang Qiang +6 more
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AAPG Bulletin, 1982
The pre-Yanshanian (pre-200 m.y.B.P.) geology of Asia can be interpreted as an unique record of numerous small plates, some of which were separate rifted blocks as early as 1,500 m.y.B.P. The north-south agglomeration of these blocks to form the bulk of modern Asia began in the west during the Carboniferous (Hercynian events) and climaxed in the east ...
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The pre-Yanshanian (pre-200 m.y.B.P.) geology of Asia can be interpreted as an unique record of numerous small plates, some of which were separate rifted blocks as early as 1,500 m.y.B.P. The north-south agglomeration of these blocks to form the bulk of modern Asia began in the west during the Carboniferous (Hercynian events) and climaxed in the east ...
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