Oxygen isotope compositions of eclogites in Rongcheng, Eastern China
文献类型：期刊论文
| 作者 | Chu, XL; Guo, JH; Fan, HG; Jin, CW |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 48期号:4页码:372-378 |
| 关键词 | Sulu UHP terrain eclogite oxygen isotope formation temperature overprinted metamorphism |
| ISSN号 | 1001-6538 |
| 文献子类 | Article |
| 英文摘要 | Collected from the Rongeheng region, Shandong Province, the three types of eclogites suffering the UHP (i.e. ultra-high pressure) metamorphism have obviously different oxygen isotope compositions. The eclogites occurring in regional orthogneisses and ultramafic rocks have the oxygen isotope compositions of normal eclogites in the world, but the eclogites existing in marbles are extremely enriched in O-18. By applying oxygen isotope geothermometry, for the all types of eclogites, the temperature estimates of quartz-garnet pair, in principle, indicate the formation temperatures of eclogites, so that the peak-metamorphic temperatures are estimated to be averagely little higher than 800degreesC, which are consistent with the estimates by using other geothermometers according to cation partitioning between coexisting phases. The delta(18)O values of eclogitic inclusions hosted in marbles from Yangguantun, Rongcheng region, are far higher than the values of eclogites (including eclogitic inclusions in marbles) from the Dabieshan and other places of the Sulu. The oxygen isotope compositions of various minerals indicate that the formation temperatures of eclogites from the Rongcheng region, in general, are higher than that from the Dabieshan and the southwestern part of the Sulu, but the dispersive temperatures estimated by different mineral pairs probably reflect that the UHP eclogites; from the Rongcheng region generally suffered overprinted metamorphisms during the exhumation. |
| WOS关键词 | PRESSURE METAMORPHIC ROCKS ; SU-LU TERRANE ; SHANDONG PROVINCE ; COESITE ECLOGITE ; JIANGSU PROVINCE ; ULTRAMAFIC ROCKS ; DABIE MOUNTAINS ; LOW DELTA-O-18 ; FRACTIONATION ; GRANULITE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000181441800015 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/78305]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chu, XL |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Key Lab Mineral Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, XL,Guo, JH,Fan, HG,et al. Oxygen isotope compositions of eclogites in Rongcheng, Eastern China[J]. CHINESE SCIENCE BULLETIN,2003,48(4):372-378. |
| APA | Chu, XL,Guo, JH,Fan, HG,&Jin, CW.(2003).Oxygen isotope compositions of eclogites in Rongcheng, Eastern China.CHINESE SCIENCE BULLETIN,48(4),372-378. |
| MLA | Chu, XL,et al."Oxygen isotope compositions of eclogites in Rongcheng, Eastern China".CHINESE SCIENCE BULLETIN 48.4(2003):372-378. |
入库方式： OAI收割
来源：地质与地球物理研究所
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