Changes in productivity and intermediate circulation in the northern Indian Ocean since the last deglaciation: new insights from benthic foraminiferal Cd / Ca records and benthic assemblage analyses
文献类型：期刊论文
| 作者 | Ma, Ruifang4,5; Sepulcre, Sophie5; Licari, Laetitia3; Haurine, Frederic5; Bassinot, Franck2; Yu, Zhaojie1; Colin, Christophe5 |
| 刊名 | CLIMATE OF THE PAST
 |
| 出版日期 | 2022-08-03 |
| 卷号 | 18期号:8页码:1757-1774 |
| ISSN号 | 1814-9324 |
| DOI | 10.5194/cp-18-1757-2022 |
| 通讯作者 | Ma, Ruifang(maruifang89@hotmail.com) |
| 英文摘要 | We have measured Cd/Ca ratios of several benthic foraminiferal species and studied benthic foraminiferal assemblages on two cores from the northern Indian Ocean (Arabian Sea and northern Bay of Bengal, BoB), in order to reconstruct variations in intermediate-water circulation and paleo-nutrient content since the last deglaciation. Intermediate water Cd-w records estimated from the benthic Cd/Ca reflect past changes in surface productivity and/or intermediate-bottom-water ventilation. The benthic foraminiferal assemblages are consistent with the geochemical data. These results suggest that during the last deglaciation, Cd-w variability was primarily driven by changes in intermediate-water properties, indicating an enhanced ventilation of intermediate-bottom water masses during both Heinrich Stadial 1 and the Younger Dryas (HS1 and YD, respectively). During the Holocene, however, surface primary productivity appears to have influenced Cd-w more than intermediate water mass properties. This is evident during the early Holocene (from 10 to 6 cal ka) when benthic foraminiferal assemblages indicate that surface primary productivity was low, resulting in low intermediate-water Cd-w at both sites. Then, from similar to 5.2 to 2.4 cal ka, surface productivity increased markedly, causing a significant increase in the intermediate-water Cd-w in the southeastern Arabian Sea and the northeastern BoB. The comparison of intermediatewater Cdw records with previous reconstructions of past Indian monsoon evolution during the Holocene suggests a direct control of intermediate-water Cd-w by monsoon-induced changes in upper-water stratification and surface primary productivity. |
| 资助项目 | French National Research Agency[ANR-11-IDEX-0004-17-EURE-0006] ; CNRS |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000835280100001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/179854]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Ma, Ruifang |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.CEA CNRS UVSQ, LSCE IPSL, F-91190 Gif Sur Yvette, France 3.Aix Marseille Univ, CEREGE, Europole Arbois BP80, F-13545 Aix En Provence, France 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 5.Univ Paris Saclay, CNRS, GEOPS, F-91405 Orsay, France |
| 推荐引用方式 GB/T 7714 | Ma, Ruifang,Sepulcre, Sophie,Licari, Laetitia,et al. Changes in productivity and intermediate circulation in the northern Indian Ocean since the last deglaciation: new insights from benthic foraminiferal Cd / Ca records and benthic assemblage analyses[J]. CLIMATE OF THE PAST,2022,18(8):1757-1774. |
| APA | Ma, Ruifang.,Sepulcre, Sophie.,Licari, Laetitia.,Haurine, Frederic.,Bassinot, Franck.,...&Colin, Christophe.(2022).Changes in productivity and intermediate circulation in the northern Indian Ocean since the last deglaciation: new insights from benthic foraminiferal Cd / Ca records and benthic assemblage analyses.CLIMATE OF THE PAST,18(8),1757-1774. |
| MLA | Ma, Ruifang,et al."Changes in productivity and intermediate circulation in the northern Indian Ocean since the last deglaciation: new insights from benthic foraminiferal Cd / Ca records and benthic assemblage analyses".CLIMATE OF THE PAST 18.8(2022):1757-1774. |
入库方式： OAI收割
来源：海洋研究所
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