Provenance of Jurassic sediments in the Hefei Basin, east-central China and the contribution of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Shan
文献类型：期刊论文
| 作者 | Li, RW; Wan, YS; Cheng, ZY; Zhou, JX; Li, SY; Jin, FQ; Meng, QG; Li, Z; Jiang, MS |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2005-03-15 |
| 卷号 | 231期号:3-4页码:279-294 |
| 关键词 | Provenance Jurassic Sediments Gamets Phengites Zircon Geochronology Dabie Shan Hp-uhp Rocks |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2004.12.021 |
| 文献子类 | Article |
| 英文摘要 | The provenance of the Jurassic sediments in the Hefei Basin is constrained by compositions of the detrital K-white micas and garnets, and SHRIMP dating of the detrital zircons, which can help to understand the evolution and to reconstruct the paleogeographic distribution of HP-UHP rocks in the Jurassic Dabie Shan. (1) For the oldest Mesozoic sediments at the bottom of the Fanghushan Formation (J(1)), the predominance of the early Paleozoic and Luliang (1700-1900 Ma) zircons indicates a major source from the North China Block. However, Neoproterozoic zircons as the major component in other Jurassic sediments indicate that the source rocks were mainly derived from the exhumed Yangtze Block in the Dabie Shan. (2) The co-occurrence of high-Si phengites and Triassic zircons provides stratigraphic evidence that the first exposure of the UHP rocks at the Earth's surface in the Dabie Shan occurred in the Early Jurassic during deposition of the Fanghushan Formation. (3) From the cast to the west of the Hefei Basin, there is a spatial variation in the compositions for detrital micas and garnets, and in the U-Pb ages of detrital zircons. Evidently, HP-UHP rocks were widely distributed at outcrop in the eastern Dabie Shan. In contrast, they were less important in the western Dabie Shan during the Jurassic. (c) 2004 Elsevier B.V. All rights reserved. |
| WOS关键词 | SOUTH CHINA ; DETRITAL ZIRCON ; MINERAL CHEMISTRY ; CONTINENTAL-CRUST ; COOLING HISTORY ; WHITE MICA ; NORTH-SEA ; CONSTRAINTS ; AGES ; MOUNTAINS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000227938400008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65606]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, RW |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Geol Acad Sci, Inst Geol, SHRIMP II Lab, Beijing 100037, Peoples R China 3.Chinese Geol Acad Sci, Inst Mineral Resources, Beijing 100037, Peoples R China 4.Hefei Ind Univ, Dept Resource & Environm Sci, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, RW,Wan, YS,Cheng, ZY,et al. Provenance of Jurassic sediments in the Hefei Basin, east-central China and the contribution of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Shan[J]. EARTH AND PLANETARY SCIENCE LETTERS,2005,231(3-4):279-294. |
| APA | Li, RW.,Wan, YS.,Cheng, ZY.,Zhou, JX.,Li, SY.,...&Jiang, MS.(2005).Provenance of Jurassic sediments in the Hefei Basin, east-central China and the contribution of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Shan.EARTH AND PLANETARY SCIENCE LETTERS,231(3-4),279-294. |
| MLA | Li, RW,et al."Provenance of Jurassic sediments in the Hefei Basin, east-central China and the contribution of high-pressure and ultrahigh-pressure metamorphic rocks from the Dabie Shan".EARTH AND PLANETARY SCIENCE LETTERS 231.3-4(2005):279-294. |
入库方式： OAI收割
来源：地质与地球物理研究所
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