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Enhancements of Himalayan and Tibetan Erosion and the Produced Organic Carbon Burial in Distal Tropical Marginal Seas During the Quaternary Glacial Periods: An Integration of Sedimentary Records

文献类型：期刊论文

作者Xu, Zhaokai2,3,4,5; Wan, Shiming2,3,5; Colin, Christophe6; Clift, Peter D.7; Chang, Fengming2,3,4; Li, Tiegang3,8; Chen, Hongjin1,2; Cai, Mingjiang1,2; Yu, Zhaojie2,3,4; Lim, Dhongil9
刊名JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
出版日期2021-03-01
卷号126期号:3页码:17
关键词highland (mountain) erosion Indian monsoon International Ocean Discovery Program organic carbon cycle sea level terrigenous input
ISSN号2169-9003
DOI10.1029/2020JF005828
通讯作者Xu, Zhaokai(zhaokaixu@qdio.ac.cn) ; Li, Tiegang(tgli@fio.org.cn) ; Lim, Dhongil(oceanlim@kiost.ac.kr)
英文摘要The Himalayan and Tibetan highlands (mountains), with high rates of physical erosion, are extreme settings for earth surface processes, generating one of the largest recent terrigenous detritus and organic carbon discharges to the ocean. However, their significance with respect to the global carbon and climate cycles during the Quaternary is still unclear, especially in quantitative terms. Here, we present comprehensive records of continental erosion and weathering, terrestrial supply, marine productivity, and organic carbon burial in the distal Arabian Sea, Bay of Bengal, and southern South China Sea since similar to 700 ka over orbital timescales. These records exhibit periodicities corresponding to sea level and Indian summer monsoon intensity changes. During glacial periods, the enhanced highland surface erosion and activation of deep-sea channels significantly increased inputs of terrigenous detritus, nutrients, and organic carbon into the Arabian Sea and Bay of Bengal, whereas strengthened continental shelf surface weathering and organic matter preservation occurred in the South China Sea. Conclusively, our integrative proxies in the study area demonstrate, for the first time, pronounced glacial burial pulses of organic carbon (similar to 1.12 x 10(12) mol/yr), dominantly originating from the highland surface erosion and marine productivity. Together with the increased silicate weathering on the exposed tropical continental shelves and in the tropical volcanic arcs, the enhanced burial flux of organic carbon in the tropical marginal seas, therefore, highlights the large contributions that tropical regions can make within the glacial-interglacial carbon inventory of the ocean and atmosphere and thus cause significant negative feedback on the global climate.
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40010100] ; National Special Project for Global Change and Air-Sea Interaction[GASI-GEOGE-04] ; National Natural Science Foundation of China[41876034] ; National Natural Science Foundation of China[41676038] ; National Natural Science Foundation of China[41376064] ; National Natural Science Foundation of China[41830539] ; Scientific and Technological Innovation Project - Qingdao National Laboratory for Marine Science and Technology[2016ASKJ13] ; Taishan Scholars Project Funding ; Korea Institute of Ocean Science & Technology research program - Ministry of Oceans and Fisheries, Republic of Korea[PM61740]
WOS研究方向Geology
语种英语
WOS记录号WOS:000636290000014
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.qdio.ac.cn/handle/337002/170281]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Xu, Zhaokai; Li, Tiegang; Lim, Dhongil
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
4.Chinese Acad Sci, Ctr Ocea Megasci, Qingdao, Peoples R China
5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
6.Univ Paris Saclay, Univ Paris Sud, Lab Geosci Paris Sud GEOPS, CNRS, Orsay, France
7.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA
8.Minist Nat Resources, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao, Peoples R China
9.Korea Inst Ocean Sci & Technol, South Sea Res Inst, Geoje, South Korea
推荐引用方式
GB/T 7714		 Xu, Zhaokai,Wan, Shiming,Colin, Christophe,et al. Enhancements of Himalayan and Tibetan Erosion and the Produced Organic Carbon Burial in Distal Tropical Marginal Seas During the Quaternary Glacial Periods: An Integration of Sedimentary Records[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2021,126(3):17.
APA Xu, Zhaokai.,Wan, Shiming.,Colin, Christophe.,Clift, Peter D..,Chang, Fengming.,...&Lim, Dhongil.(2021).Enhancements of Himalayan and Tibetan Erosion and the Produced Organic Carbon Burial in Distal Tropical Marginal Seas During the Quaternary Glacial Periods: An Integration of Sedimentary Records.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,126(3),17.
MLA Xu, Zhaokai,et al."Enhancements of Himalayan and Tibetan Erosion and the Produced Organic Carbon Burial in Distal Tropical Marginal Seas During the Quaternary Glacial Periods: An Integration of Sedimentary Records".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 126.3(2021):17.

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来源：海洋研究所

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