The characteristic of petrology, minerals chemistry and P-T conditions of eclogites from Taihu area in Dabie mountains, and its Tectonic significance.
文献类型：期刊论文
| 作者 | Shi, YH; Wang, QC; Lin, W |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2006-02-01 |
| 卷号 | 22期号:2页码:414-432 |
| 关键词 | Dabie mountains Taihu area eclogites P-T conditions uplift rate |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Eclogites from Taihu area in Dabie Mountains can be identified into HP (high pressure) eclogites, HP-UHP (high/high-ultrahigh pressure) eclogites and UHP (ultrahigh pressure) elcogites, based on the result of geological mapping (1: 10000), and the investigation on the petrology, minerals chemistry and P-T conditions of these eclogites. From HP eclogites to UHP eclogites, the component of grossular and pyrope in garnet and Si4+ content of phengites rise gradually. Peak P-T conditions of eclogites also transform from 535 degrees C similar to 652 degrees C, 1.50 similar to 2.26GPa of HP eclogite, 625 degrees C similar to 777 degrees C, 2.41 similar to 3.04GPa of HP/UHP eclogite to 767 degrees C similar to 942 degrees C, 3.49 similar to 4.09GPa of UHP eclogites, and show a regional P-T gradient trend. Combine structure geometric characteristic in space and wall rocks of eclogites, application of Grt-Cpx thermometer and Grt-Cpx-Phe barometer, we define a 5 degrees C/km "geotherm" and two isopleth lines with T = 650 degrees C, P = 2.50GPa; T = 750 degrees C, P = 3.00GPa, and divided the South Dabie Terrain into three subzones: HP-Zone, HP-UHP-Zone and UHP-Zone, which imply the South Dabie Terrain is a consist terrain. According P-T paths of three types of eclogites in this Study and previous chronology, we discuss different Uplift rate of these eclogites tentatively, and guess that these eclogites can be shortened in the depth of 40 similar to 50km and scaled as a "whole terrain". Subsequently, this "whole terrain" ascends to the crust gently and forms the present distribution. |
| WOS关键词 | ULTRAHIGH-PRESSURE METAMORPHISM ; COESITE-BEARING ECLOGITES ; WESTERN GNEISS REGION ; CENTRAL CHINA ; COOLING HISTORY ; PHASE-DIAGRAMS ; EASTERN CHINA ; SM-ND ; QUARTZ ; SHAN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000236152700014 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67052]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Shi, YH |
| 作者单位 | 1.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, YH,Wang, QC,Lin, W. The characteristic of petrology, minerals chemistry and P-T conditions of eclogites from Taihu area in Dabie mountains, and its Tectonic significance.[J]. ACTA PETROLOGICA SINICA,2006,22(2):414-432. |
| APA | Shi, YH,Wang, QC,&Lin, W.(2006).The characteristic of petrology, minerals chemistry and P-T conditions of eclogites from Taihu area in Dabie mountains, and its Tectonic significance..ACTA PETROLOGICA SINICA,22(2),414-432. |
| MLA | Shi, YH,et al."The characteristic of petrology, minerals chemistry and P-T conditions of eclogites from Taihu area in Dabie mountains, and its Tectonic significance.".ACTA PETROLOGICA SINICA 22.2(2006):414-432. |
入库方式： OAI收割
来源：地质与地球物理研究所
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