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| Keywords | |
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northwestern Yunnan |
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Dulongjiang magmatic arc |
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Bingzhongluo block |
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Bangongcuo--Dongqiao suture zone |
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Gaoligongshan fault |
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Nujiang fault |
| Authors | |
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WANG Xue-Wu |
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LI Xin-Ren |
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LIU Feng-Xiang |
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YAN Cheng-Min |
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ZHOU Xi-Lin |
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WANG Chang-Bing |
| PubMed | |
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Article by Wang, X. W. |
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Article by Li, X. R. |
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Article by Liu, F. X. |
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Article by Yan, C. M. |
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Article by Zhou, X. L. |
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Article by Wang, C. B. |
Division and characteristics of Dulongjiang magmatic arc
WANG Xue-Wu, LI Xin-Ren, LIU Feng-Xiang, YAN Cheng-Min, ZHOU Xi-Lin, WANG Chang-Bing
1. No. 209 Geological Party��Geological Bureau of Yunnan Nuclear Industry��Kunming 650032��China; 2�� ��egional Geological Survey Party��Yunnan Bureau of Geology and Mineral ��esources��Yuxi 653100��Yunnan��China
To clarify the division and characteristics of Gongshan tectonic units in northwestern Yunnan��the authors collected and collated different scaled regional geological survey data��and then obtained four new under- standings: �� tectonic units are divided into Dulongjiang magmatic arc and Bingzhongluo block��and the demarca- tion between them is the inclined eastward Gaoligong Mountain thrusting nappe fault; ��Dulongjiang magmatic arc belongs to Tengchong orogenic belt��while Bingzhongluo block belongs to the Three ��iver orogenic belt��which are separated by Meso-Tethys; �� the Meso-Tethys opened in Middle Jurassic��westward subducted in Late Jurassic- early Early Cretaceous��and closed in later Early Cretaceous and Late Cretaceous; �� Bangongcuo-Dongqiao suture zone in the district has been covering by the Gaoligong Mountain rock group which westward thrust nappe��