South China provenance of the lower-grade Penglai Group north of the Sulu UHP orogenic belt, eastern China: Evidence from detrital zircon ages and Nd-Hf isotopic composition
文献类型：期刊论文
| 作者 | Li, Xiang-Hui; Chen, Fukun; Guo, Jing-Hui; Li, Qiu-Li; Xie, Lie-Wen; Siebel, Wolfgang |
| 刊名 | GEOCHEMICAL JOURNAL
 |
| 出版日期 | 2007 |
| 卷号 | 41期号:1页码:29-45 |
| 关键词 | Sulu UHP belt lower-grade detrital zircon age Nd-Hf isotopes provenance |
| ISSN号 | 0016-7002 |
| 文献子类 | Article |
| 英文摘要 | The Dabie-Sulu ultrahigh-pressure orogenic belt resulted from the early Mesozoic collision of the North China block and South China block (comprising the Yangtze and the Cathaysia) and subsequent exhumation of the subducted South China continental slabs. This belt consists of tectonically juxtaposed rock units of different metamorphic grade. Provenance of the low-grade metamorphic terranes exposed along the northern part of the belt can offer useful information about the location of the boundary between these two continental blocks. This study reports detrital zircon ages and Nd-Hf isotopic composition of sedimentary rocks of the low-grade Penglai Group, situated north of the Sulu UHP terrane. Results show that detrital zircon grains mostly crystallized during Mesoproterozoic time, clustering at 1.7 Ga to 1.6 Ga and 1.2 Ga. Nd isotopic composition (T-DM value) of the Penglai Group suggests that sedimentary sources are similar to average crustal material of the Yangtze block and mostly formed in Paleo- to Mesoproterozoic. Late Mesoproterozoic detrital zircons probably demonstrate that sedimentary material was derived from the boundary of the Yangtze and Cathaysia blocks, which was formed by the late Mesoproterozoic convergence. Absence of Neoproterozoic detrital zircons from the Penglai sediments probably suggests a late Mesoproterozoic to early Neoproterozoic deposition age (about 1.1 Ga to 0.8 Ga). The age and isotopic evidence implies that the Penglai Group originated from the South China block and probably was thrust onto the basement of the North China block during the early Mesozoic continental collision. |
| WOS关键词 | U-PB AGES ; COESITE-BEARING ECLOGITES ; TRACE-ELEMENT ; LU-HF ; CRUSTAL EVOLUTION ; METAMORPHIC ROCKS ; YANGTZE CRATON ; MINERAL INCLUSIONS ; TECTONIC EVOLUTION ; CONTINENTAL-CRUST |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000245512500003 |
| 出版者 | GEOCHEMICAL SOC JAPAN |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68148]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, Fukun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Sch Earth Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.Univ Tubingen, Inst Geowissensch, D-72074 Tubingen, Germany |
| 推荐引用方式 GB/T 7714 | Li, Xiang-Hui,Chen, Fukun,Guo, Jing-Hui,et al. South China provenance of the lower-grade Penglai Group north of the Sulu UHP orogenic belt, eastern China: Evidence from detrital zircon ages and Nd-Hf isotopic composition[J]. GEOCHEMICAL JOURNAL,2007,41(1):29-45. |
| APA | Li, Xiang-Hui,Chen, Fukun,Guo, Jing-Hui,Li, Qiu-Li,Xie, Lie-Wen,&Siebel, Wolfgang.(2007).South China provenance of the lower-grade Penglai Group north of the Sulu UHP orogenic belt, eastern China: Evidence from detrital zircon ages and Nd-Hf isotopic composition.GEOCHEMICAL JOURNAL,41(1),29-45. |
| MLA | Li, Xiang-Hui,et al."South China provenance of the lower-grade Penglai Group north of the Sulu UHP orogenic belt, eastern China: Evidence from detrital zircon ages and Nd-Hf isotopic composition".GEOCHEMICAL JOURNAL 41.1(2007):29-45. |
入库方式： OAI收割
来源：地质与地球物理研究所
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