Onstraints on timing of the early-Paleoproterozoic magmatism and crustal evolution of the Oulongbuluke microcontinent: U-Pb and Lu-Hf isotope systematics of zircons from Mohe granitic pluton.
文献类型：期刊论文
| 作者 | Li, X. Y.; Chen, N. S.; Xia, X. P.; Sun, M.; Xx, P.; Wang, Q. Y.; Wang, X. Y. |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 23期号:2页码:513-522 |
| 关键词 | zircon U-Pb and Hf isotopes granite precambrian crustal evolution Oulongbuluke micro-continent north Qaidam |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The Olongbuluke micro-continent is composed of a two-fold basement with cover strata. The lower basement is the medium-to high-grade Delingha complex ( DC) and the Dakendaban Group, the upper is the low-grade Wandonggou Group. Zircon LA-ICP-MS dating gives U-Pb isotope of 27 zircon grains from the Mobe granite of the DC, of which 26 zircon grains suffered various degree of Pb loss and defined a Concordia with a upper intercept age of 2470 +19/- 18Ma. Hf isotope of 25 zircon grains was measured using LA-MC-ICP-MS technique, of which 23 grains crystallized from Mohe granite show Hf-i = 0.28129 similar to 0.28140 (weighted average of 0.28134 +/- 0.00003), epsilon(Hf) = 2.94 similar to 6.95 (weighted average of 4.58 +0.54/-0.76), resident time for the felsic crustal reservoir T-DM(C) = 2.54 similar to 2.75Ga with weighted average of 2.66 +0.04/-0.02Ga. These data indicate that the Mohe granite pluton was derived from, partial melting of the mantle, and the intrusion of the Mohe granite pluton implied a crustal accretion event occurred in Olongbuluke micro-continent at ca. 2.5Ga. |
| WOS关键词 | WESTERN KUNLUN XINJIANG ; CHINA ; ND ; GEOCHEMISTRY ; MANTLE ; GROWTH ; BELT ; GEOCHRONOLOGY ; CONSTRAINTS ; MOUNTAINS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000245763200027 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67288]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, X. Y. |
| 作者单位 | 1.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Sch Geol Survey Guangxi Prov, Nanning 530023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X. Y.,Chen, N. S.,Xia, X. P.,et al. Onstraints on timing of the early-Paleoproterozoic magmatism and crustal evolution of the Oulongbuluke microcontinent: U-Pb and Lu-Hf isotope systematics of zircons from Mohe granitic pluton.[J]. ACTA PETROLOGICA SINICA,2007,23(2):513-522. |
| APA | Li, X. Y..,Chen, N. S..,Xia, X. P..,Sun, M..,Xx, P..,...&Wang, X. Y..(2007).Onstraints on timing of the early-Paleoproterozoic magmatism and crustal evolution of the Oulongbuluke microcontinent: U-Pb and Lu-Hf isotope systematics of zircons from Mohe granitic pluton..ACTA PETROLOGICA SINICA,23(2),513-522. |
| MLA | Li, X. Y.,et al."Onstraints on timing of the early-Paleoproterozoic magmatism and crustal evolution of the Oulongbuluke microcontinent: U-Pb and Lu-Hf isotope systematics of zircons from Mohe granitic pluton.".ACTA PETROLOGICA SINICA 23.2(2007):513-522. |
入库方式： OAI收割
来源：地质与地球物理研究所
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