中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Glacial-interglacial variation in catchment weathering and erosion paces the Indian summer monsoon during the Pleistocene

文献类型:期刊论文

作者Jin, Zhangdong1,2,3; Yu, Jimin4,5; Zhang, Fei1,2; Qiang, Xiaoke1,2
刊名QUATERNARY SCIENCE REVIEWS
出版日期2020-11-15
卷号248页码:13
ISSN号0277-3791
关键词Weathering Erosion Indian summer monsoon Glacial-interglacial cycle The Pleistocene Heqing Yunnan
DOI10.1016/j.quascirev.2020.106619
通讯作者Jin, Zhangdong(zhdjin@ieecas.cn)
英文摘要Silicate weathering via CO2 consumption is considered to regulate the long-term climate change. Discriminating silicate versus carbonate weathering from sedimentary records is helpful to understand the coupling relationship between weathering and past climate. However, owing to the paucity of welldated and continuous records of weathering and erosion, the relationship between silicate and carbonate weathering and their links with mountain uplift and glacial-interglacial climate remain elusive. Geochemical analysis of a 666 m core from the Heqing basin, a paleolake situated at the southeastern margin of the Tibetan Plateau, demonstrates silicate versus carbonate weathering and erosion changes under Indian summer monsoon (ISM) conditions spanning the entire Pleistocene, via respective tracing between Rb/Sr and Al/Na ratios. The Rb/Sr record is interpreted as reflecting a competition between clayey silicate-origin Rb versus carbonate-origin Sr fluxes, whereas Al/Na ratio is a balance between weathering and erosion of silicate minerals, both pacing the glacial-interglacial cycles of the ISM. During interglacials, strong silicate weathering intensity reflected by low Al/Na values is mainly controlled by warmer temperatures, with the reduced variability during 1.82-0.92 Ma, recalling the pacing of the Arabian Sea surface temperature amplitudes. Within glacials, the weak carbonate leaching and clay erosion within the older and younger intervals are interrupted by strong clay erosion within the middle interval. In conclusion, the Heqing Rb/Sr and Al/Na records reveal the sensitivity of catchment weathering and erosion to ISM changes over glacial-interglacial timescales with warmer temperature enhancing silicate weathering and clay formation during interglacials and greater physical erosion during glacials. (C) 2020 Elsevier Ltd. All rights reserved.
WOS关键词CLIMATE-CHANGE ; ATMOSPHERIC CO2 ; ASIAN MONSOON ; MASS-BALANCE ; DEEP-SEA ; RATES ; ISOTOPE ; CARBON ; OCEAN ; SEDIMENT
资助项目CAS Strategic Priority Research Program[XDA2007010202] ; NSFC[41991322]
WOS研究方向Physical Geography ; Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000582803000028
资助机构CAS Strategic Priority Research Program ; NSFC
源URL[http://ir.ieecas.cn/handle/361006/15497]  
专题中国科学院地球环境研究所
通讯作者Jin, Zhangdong
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
4.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
5.Qingdao Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China
推荐引用方式
GB/T 7714
Jin, Zhangdong,Yu, Jimin,Zhang, Fei,et al. Glacial-interglacial variation in catchment weathering and erosion paces the Indian summer monsoon during the Pleistocene[J]. QUATERNARY SCIENCE REVIEWS,2020,248:13.
APA Jin, Zhangdong,Yu, Jimin,Zhang, Fei,&Qiang, Xiaoke.(2020).Glacial-interglacial variation in catchment weathering and erosion paces the Indian summer monsoon during the Pleistocene.QUATERNARY SCIENCE REVIEWS,248,13.
MLA Jin, Zhangdong,et al."Glacial-interglacial variation in catchment weathering and erosion paces the Indian summer monsoon during the Pleistocene".QUATERNARY SCIENCE REVIEWS 248(2020):13.

入库方式: OAI收割

来源:地球环境研究所

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