雪峰山构造带古构造应力场 |
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关键词:Indosinian compression Yanshannian compression South China block |
基金项目:国家专项“深部探测与实验研究”第八项目第一课题(编号: SinoProbe-08-01); 国家自然科学基金项目(编号: 41202154) |
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摘要: |
Paleo-structural Stress Field in Xuefengshan Tectonic Belt, South China |
The structure of South China is complex, and its tectonic regimes underwent a tremendous change from the Tethys tectonic domain to the Pacific tectonic domain during the Mesozoic period. The Xuefengshan tectonic belt (XTB) is located in the interior of South China and its uplift mechanism is debated hotly. The study of stress fields on XTB and its adjacent areas provides a key basis for the dynamic mechanism of tectonic evolution of South China. The inverted stress shows that the study area has experienced four stages of compressive stress since Mesozoic, i.e., NE-trending, nearly NS-trending, NW-trending and NNE-trending compressive stresses. The NE-trending and nearly NS-trending stresses resulted from clockwise rotation of South China and closing of Tethys ocean. The NW-trendiang compression was induced by subduction of paleo-Pacific Ocean towards Eurasia continent, whereas the NNE-trending compression might have been related to the far-distance effect of collision between the India and the Tibet plates. |
SU Jin-bao,ZHANG Yue-qiao,DONG Shu-wen,LI Yong,LI Jian-hua,MA Shou-xian,CUI Jian-jun.2013.Paleo-structural Stress Field in Xuefengshan Tectonic Belt, South China[J].Acta Geoscientica Sinica,34(6):671-679. |
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