Quaternary geology and faulting in the Damxung-Yangbajain basin
文献类型：期刊论文
| 作者 | Wu, ZH; Zhao, XT; Wu, ZH; Jiang, W; Hu, DG; Zhou, CJ |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2004 |
| 卷号 | 78期号:1页码:273-282 |
| 关键词 | Qinghai-Tibet plateau Nyainqentanglha north-south trending graben active fault glaciation |
| ISSN号 | 1000-9515 |
| 文献子类 | Article |
| 英文摘要 | The detailed geological mapping, conducted in the Damxung-Yangbajain basin, shows that there are many types of deposits formed since the Pliocene. The oldest sediments are formed during the Pliocene. The most prominent sediments are three sets of moraines and fluvioglacial deposits. The ESR, U-series and OSL dates indicate they are formed about 700-500 ka B.P., 250-125 ka B.P. and 75-12 ka B.P. respectively and indicate that there are three glacial periods since the mid-Pleistocene in the Nyainqentanglha Range. Along the southeast side of the Nyainqentanglha Range, the main southeast dipping fault zone which bounds the Damxung-Yangbajain Graben on its western edge was mapped. The fault zone consists of three secondary fault zones and their initiation ages that the fault zones became active gradually decrease southeastward. Prominent faulting occurred in about 700-500 ka B.P., 350-220 ka B.P., similar to140 ka B.P. and 70-50 ka B.P. since the mid-Pleistocene. The height of fault scarps which offset the sediments formed since the mid-Pleistocene suggest that the vertical slip rates change between 0.4 -2 mm/a and the cumulative average vertical movement at rates of 1.1+/-0.3 mm/a during the Quaternary period and the Holocene vertical throw rate is 1.4+/-0.6 mm/a along the fault zones on the western side of the Damxung-Yangbajain Graben. |
| WOS关键词 | SOUTHERN TIBETAN PLATEAU ; SHEAR ZONE ; ASIA ; DEFORMATION ; EXTENSION ; TECTONICS ; UPLIFT |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000221717300034 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79457]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wu, ZH; Wu, ZH |
| 作者单位 | 1.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, ZH,Zhao, XT,Wu, ZH,et al. Quaternary geology and faulting in the Damxung-Yangbajain basin[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2004,78(1):273-282. |
| APA | Wu, ZH,Zhao, XT,Wu, ZH,Jiang, W,Hu, DG,&Zhou, CJ.(2004).Quaternary geology and faulting in the Damxung-Yangbajain basin.ACTA GEOLOGICA SINICA-ENGLISH EDITION,78(1),273-282. |
| MLA | Wu, ZH,et al."Quaternary geology and faulting in the Damxung-Yangbajain basin".ACTA GEOLOGICA SINICA-ENGLISH EDITION 78.1(2004):273-282. |
入库方式： OAI收割
来源：地质与地球物理研究所
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