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DOI | 10.1002/2017GL073185 |
Sedimentary provenance constraints on drainage evolution models for SE Tibet: Evidence from detrital K-feldspar | |
Zhang, Zengjie1; 39;an2 | |
2017-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Ireland; Netherlands |
英文摘要 | The unusual drainage pattern of the Jinsha River (upper Yangtze) is closely linked to the uplift of the Tibetan Plateau, but when this pattern became established is controversial. In this study we compare the Pb isotopic composition of detrital K-feldspars from the modern Jinsha River with those from the Plio-Pleistocene Xigeda Formation, a sequence of fluvial and lacustrine deposits widely distributed along the major rivers draining the Tibetan Plateau, to investigate their relationship and to constrain the drainage evolution of the region. Our results demonstrate that the Jinsha River had achieved its current sediment-transport pattern by the late Pliocene, indicating a drainage character similar to that operating at present. Our findings not only suggest an upper age limit for formation of the Jinsha River but also shed new light on the evolution of the whole Yangtze system. K-feldspar grains from the Jinsha River have less radiogenic Pb than those in the Red, Mekong, and Salween Rivers, providing a key test as to whether the Jinsha River was previously connected to the paleo-Red River. Comparison with published Pb isotopic data shows that these characteristically unradiogenic feldspars are absent in the onshore Cenozoic archive from the Hanoi Basin, suggesting that there has been no connection between the lower Jinsha River and the Red River since the Eocene. |
英文关键词 | Jinsha River Pb isotopes detrital K-feldspar provenance drainage evolution |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402143700013 |
WOS关键词 | MIDDLE YANGTZE-RIVER ; U-PB AGES ; EASTERN MARGIN ; SURFACE UPLIFT ; YUANMOU BASIN ; BURIAL AGES ; PLATEAU ; INCISION ; CHINA ; ZIRCON |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25527 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China; 2.China Univ Geosci, Sch Earth Sci, Wuhan, Peoples R China; 3.Univ Coll Dublin, UCD Earth Inst, UCD Sch Earth Sci, Belfield, Ireland; 4.Univ Coll Dublin, Irish Ctr Res Appl Geosci ICRAG, Belfield, Ireland; 5.Natl Univ Ireland, Earth & Ocean Sci, Galway, Ireland; 6.Natl Univ Ireland, Sch Nat Sci, Irish Ctr Res Appl Geosci ICRAG, Galway, Ireland; 7.Vrije Univ Amsterdam, Fac Earth & Life Sci, Amsterdam, Netherlands |
推荐引用方式 GB/T 7714 | Zhang, Zengjie,39;an. Sedimentary provenance constraints on drainage evolution models for SE Tibet: Evidence from detrital K-feldspar[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(9). |
APA | Zhang, Zengjie,&39;an.(2017).Sedimentary provenance constraints on drainage evolution models for SE Tibet: Evidence from detrital K-feldspar.GEOPHYSICAL RESEARCH LETTERS,44(9). |
MLA | Zhang, Zengjie,et al."Sedimentary provenance constraints on drainage evolution models for SE Tibet: Evidence from detrital K-feldspar".GEOPHYSICAL RESEARCH LETTERS 44.9(2017). |
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