中国超高压变质岩十五年研究进展 |
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关键词:UHPM rock Dabieshan-Su-Lu China |
基金项目:国家自然科学基金委员会资助(项目编号:49794045) |
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Development of Studying Ultrahigh-Pressure Metamorphic Rocks from China during the Past 15 Years |
Studies on the ultra-high pressure metamorphic (UHPM) rocks from China started in 1980s. Progresses so far made in the field could be summarized as follows.① The Dabieshan-Su-Lu UHPM belt has been well-known since many new outcrops of UHPM rocks were found;② Mineralogical evidences indicate that the continental crust rocks with low density could subduct down to depth of >200 km and undergo UHPM;③ UHPM rocks from the Dabieshan-Su-Lu area were dated as early Mesozoic when the Yangtze Craton subducted northward beneath the Sino-Korean Craton; ④ Fluids were not active and oxygen isotope composition of meteoric water could be preserved during UHPM process, as is evidenced by O, C, and H isotope data; ⑤Multistage models were suggested to explain the exhumation of the UHPM terrain. Some hotly debated issues were summarized. |
WANG Qing-chen.2001.Development of Studying Ultrahigh-Pressure Metamorphic Rocks from China during the Past 15 Years[J].Acta Geoscientica Sinica,22(1):11-16. |
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