Exhumation of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Orogenic Belt
文献类型：期刊论文
| 作者 | Wang QingChen |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 29期号:5页码:1607-1620 |
| 关键词 | Exhumation HP-UHP rocks Dabie Orogenic Belt |
| ISSN号 | 1000-0569 |
| 英文摘要 | Exhumation of high-pressure (HP) and ultrahigh-pressure (UHP) metamorphic rocks is a geodynamic process. Although our eyes could not see the process, we can look for its foot-prints in rocks. The present paper deals with the HP-UHP rocks in the Dabie Orogenic Belt. Evidences constrain the exhumation process of the Dabie HP-UHP rocks include the following: (1) Structural and geophysical data record dome-shaped compressional architecture of crust resulted from exhumation and depict offsets in the Moho, which served as exhumation channel. (2) P-T-t data record the passing depth and time of the Dabie HP-UHP rocks, and display the southward exhumation polarity. (3) Pebble composition and Si content in detrial phengite record that HP-UHP rocks have been exhumed to surface by the Middle Jurassic. The reconstructed exhumation process include three stages: by 230Ma, three slices started to exhume one after another quickly from various depth and arrived at the middle curst in 210Ma with exhumation rates of 3 similar to 10km/Ma, and then quickly entered the upper crust by 180Ma with exhumation rate of 3 km/Ma. Exhumation rate in Cretaceous is very small (similar to 0.1km/Ma). |
| 语种 | 英语 |
| WOS记录号 | WOS:000321226200011 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86612]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang QingChen |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang QingChen. Exhumation of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Orogenic Belt[J]. ACTA PETROLOGICA SINICA,2013,29(5):1607-1620. |
| APA | Wang QingChen.(2013).Exhumation of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Orogenic Belt.ACTA PETROLOGICA SINICA,29(5),1607-1620. |
| MLA | Wang QingChen."Exhumation of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Orogenic Belt".ACTA PETROLOGICA SINICA 29.5(2013):1607-1620. |
入库方式： OAI收割
来源：地质与地球物理研究所
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