Cogenetic relationship of the Yangkou gabbro-to-granite unit, Su-Lu terrane, eastern China, and implications for UHP metamorphism
文献类型：期刊论文
| 作者 | Chen, B; Jahn, BM; Ye, K; Liu, JB |
| 刊名 | JOURNAL OF THE GEOLOGICAL SOCIETY
 |
| 出版日期 | 2002-07-01 |
| 卷号 | 159页码:457-467 |
| 关键词 | Yangkou unit eclogites nietagranites Nd/Sr isotopes ultrahigh pressure metamorphism |
| ISSN号 | 0016-7649 |
| 文献子类 | Article |
| 英文摘要 | The Yangkou gabbro-to-granite complex is a petrotectonic unit of the Su-Lu ultrahigh-pressure (UHP) metamorphic terrane in eastern China. It consists of lherzolites, metagabbro-eclogites, metagranodiorites and deformed granites. Whether or not the felsic members of the complex have undergone UHP metamorphism as is recorded in the metagabbro-eclogites is significant to understanding the relationship between eclogite and host rock. The metagabbro-eclogites have low epsilon(Nd) (220 Ma) values (-17 to -12) at the time of UHP metamorphism, indicating that their protoliths are old mafic intrusive rocks emplaced in a continental domain. Geochemical and isotopic studies for the Yangkou unit suggest that the protoliths of the unit (except eclogites) represent a cogenetic magmatic suite, produced by differentiation of a mafic parental magma. The parental magma was derived from melting of a long-term enriched mantle, and was emplaced into a crustal level during continental extension at c. 700-800 Ma. The cogenetic relationship for the protoliths of the unit suggests that the metagranodiorites and deformed granites were also subducted to extreme mantle depths along with the metagabbro-eclogites at c. 220 Ma. The lherzolites, however, are genetically not related to the mafic protoliths; they represent 'mantle xenoliths' of tectonic origin. |
| WOS关键词 | ULTRAHIGH-PRESSURE METAMORPHISM ; RARE-EARTH PATTERNS ; ULTRAMAFIC ROCKS ; COESITE ; PETROGENESIS ; EVOLUTION ; ECLOGITES ; MAGMATISM ; ZIRCON ; GEOCHRONOLOGY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000176960300010 |
| 出版者 | GEOLOGICAL SOC PUBL HOUSE |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77822]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, B |
| 作者单位 | 1.Peking Univ, Dept Geol, Beijing 100871, Peoples R China 2.Univ Rennes 1, UPR CNRS 4661, F-35042 Rennes, France 3.Chinese Acad Sci, Inst Geol & Geophys, Lab Lithosphere Tecton Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, B,Jahn, BM,Ye, K,et al. Cogenetic relationship of the Yangkou gabbro-to-granite unit, Su-Lu terrane, eastern China, and implications for UHP metamorphism[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2002,159:457-467. |
| APA | Chen, B,Jahn, BM,Ye, K,&Liu, JB.(2002).Cogenetic relationship of the Yangkou gabbro-to-granite unit, Su-Lu terrane, eastern China, and implications for UHP metamorphism.JOURNAL OF THE GEOLOGICAL SOCIETY,159,457-467. |
| MLA | Chen, B,et al."Cogenetic relationship of the Yangkou gabbro-to-granite unit, Su-Lu terrane, eastern China, and implications for UHP metamorphism".JOURNAL OF THE GEOLOGICAL SOCIETY 159(2002):457-467. |
入库方式： OAI收割
来源：地质与地球物理研究所
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