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Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene
Yu, JM (Yu, Jimin)[ 1 ]; Elderfield, H (Elderfield, Henry)[ 2 ]; Jin, ZD (Jin, Zhangdong)[ 3 ]; Tomascak, P (Tomascak, Paul)[ 4 ]; Rohling, EJ (Rohling, Eelco J.)[ 1,5 ]
2014-08-15
Source PublicationQUATERNARY SCIENCE REVIEWS
Volume98Pages:1-6
Subtype期刊论文
Abstract

Changes in the Sr to Ca ratio of sea water have important implications for the interpretation of past climate. It has proven difficult to interpret Sr/Ca of foraminiferal calcite as a measure of seawater Sr/Ca or as reflecting the influence of deep water carbonate ion saturation (Delta[CO32-]) on the incorporation of Sr into benthic foraminiferal carbonate. Here, we address this issue by measurements of paired benthic foraminiferal Sr/Ca and B/Ca (a proxy for deep water A[Delta[CO32-]) for core-tops from the global ocean and three down cores at different settings during the Last Glacial-interglacial cycle. These new data suggest a significant control of deep water Delta[CO32-] on benthic foraminiferal Sr/Ca, and that down-core shell Sr/Ca variations can be largely accounted for by past deep water Delta[CO32-] changes. We conclude that seawater Sr/Ca has likely remained near-constant on glacial-interglacial timescales during the late Pleistocene, in agreement with model results. With due caution, benthic Sr/Ca may be used as an auxiliary proxy for deep water Delta[CO32-] if seawater Sr/Ca is constant.

KeywordSr/ca Carbonate Ion saturatIon Benthic Foraminifera Deep Ocean Pleistocene
DOI10.1016/j.quascirev.2014.05.018
Indexed BySCI ; EI
Language英语
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9837
Collection加速器质谱中心
Corresponding AuthorYu, JM (Yu, Jimin)[ 1 ]
Affiliation1.Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia;
2.The Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK;
3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
4.Department of Earth Sciences, SUNY Oswego, Oswego, NY 13126, USA;
5.Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton SO14 3ZH, UK
Recommended Citation
GB/T 7714
Yu, JM ,Elderfield, H ,Jin, ZD ,et al. Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene[J]. QUATERNARY SCIENCE REVIEWS,2014,98:1-6.
APA Yu, JM ,Elderfield, H ,Jin, ZD ,Tomascak, P ,&Rohling, EJ .(2014).Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene.QUATERNARY SCIENCE REVIEWS,98,1-6.
MLA Yu, JM ,et al."Controls on Sr/Ca in benthic foraminifera and implications for seawater Sr/Ca during the late Pleistocene".QUATERNARY SCIENCE REVIEWS 98(2014):1-6.
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