Foraminifera as a proxy for seawater neodymium: Core-top calibration and down-core application for reconstructing Holocene variability in the Indonesian Throughflow (ITF)
有孔虫作为海水钕的代表:岩心顶部校准和岩心下应用,用于重建印度尼西亚贯穿流(ITF)中的全新世变异性
基本信息
- 批准号:0851954
- 负责人:
- 金额:$ 18.1万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-06-15 至 2011-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This research will assess the utility of Nd-isotopes(defined as εNd) measured in foraminifera as a water mass proxy. The first component of the work is a calibration study that takes advantage of a large set of surface sediments and overlying water samples collected on several cruises worldwide over the past few years to assess the applicability of foraminifera as recorders of deep ocean and thermocline εNd. Rare earth element patterns will be measured on the same samples to test their utility for paleoceanographic research.The new method will then be used to reconstruct Holocene variability in the relative contributions of North Pacific Intermediate Water (NPIW) and South Pacific Water (SPW) to the ITF. Seawater εNd will be measured in three vertical profiles from key locations within the ITF route and south Pacific in order to document the εNd signatures of water masses within the ITF and its end-members. The PIs will generate a low-resolution foraminiferal record of εNd throughout the Holocene in a core located in the Makassar Straits as a proxy for water mass variability, and combine it with measurements of sortable silt mean size as proxy for bottom current velocity. The work will improve understanding of Holocene changes in water mass variability and thermocline flow through the Indonesian Seas. This award supports a postdoctoral researcher.
该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。本研究将评估在有孔虫中测量的Nd同位素(定义为&;#949;Nd)作为水质量代理的效用。这项工作的第一个组成部分是一项校准研究,利用过去几年在世界各地几次巡航中收集的大量地表沉积物和上覆水样来评估有孔虫作为深海和温跃层记录者的适用性。将在相同的样品上测量稀土元素模式,以测试它们在古海洋学研究中的效用。新方法将用于重建北太平洋中间水(NPIW)和南太平洋水(SPW)对ITF的相对贡献的全新世变率。海水,# 949;将在ITF路线和南太平洋的关键地点的三个垂直剖面上测量Nd,以记录&;#949;ITF及其端元内水团的Nd特征。pi将生成低分辨率有孔虫记录&;#949;在望加锡海峡的一个岩心中作为整个全新世水体质量变化的代表,并将其与可分选泥沙平均大小的测量相结合,作为底流速度的代表。这项工作将提高对印度尼西亚海水体质量变率和温跃层流动的全新世变化的认识。该奖项支持博士后研究人员。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Yair Rosenthal其他文献
The effect of carbonate chemistry on trace element incorporation in high-Mg calcitic foraminifera
碳酸盐化学作用对高镁方解石有孔虫中微量元素结合的影响
- DOI:
10.1016/j.gca.2024.11.022 - 发表时间:
2025-02-01 - 期刊:
- 影响因子:5.000
- 作者:
Hagar Hauzer;David Evans;Wolfgang Müller;Yair Rosenthal;Jonathan Erez - 通讯作者:
Jonathan Erez
Equatorial Pacific bulk sediment <em>δ</em><sup>15</sup>N supports a secular increase in Southern Ocean nitrate utilization after the mid-Pleistocene Transition
- DOI:
10.1016/j.quascirev.2021.107348 - 发表时间:
2022-02-15 - 期刊:
- 影响因子:
- 作者:
Jonathan E. Lambert;Kelly A. Gibson;Braddock K. Linsley;Samantha C. Bova;Yair Rosenthal;Mina Surprenant - 通讯作者:
Mina Surprenant
Eastern Arabian Sea COsub2/sub outgassing during the last deglaciation and Holocene related to deep-water carbonate chemistry
末次冰消期和全新世期间阿拉伯海东部二氧化碳排放与深水碳酸盐化学有关
- DOI:
10.1016/j.quascirev.2023.108326 - 发表时间:
2023-11-01 - 期刊:
- 影响因子:3.300
- 作者:
Smita N. Naik;Sushant S. Naik;Yair Rosenthal;Vincent Clementi - 通讯作者:
Vincent Clementi
Evolution of meridional and zonal sea surface temperature gradients in the Pacific Ocean during the Quaternary period
第四纪太平洋经向和纬向海面温度梯度的演变
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
Takuya Sagawa;Risako Makino;Yukimi Kubota;Yoshimi Kubota;Yair Rosenthal - 通讯作者:
Yair Rosenthal
The I/Ca paleo-oxygenation proxy in planktonic foraminifera: A multispecies core-top calibration
浮游有孔虫中的 I/Ca 古氧代理指标:多物种核心顶部校准
- DOI:
10.1016/j.gca.2025.01.018 - 发表时间:
2025-03-15 - 期刊:
- 影响因子:5.000
- 作者:
Anya V. Hess;Yair Rosenthal;Xiaoli Zhou;Kaixuan Bu - 通讯作者:
Kaixuan Bu
Yair Rosenthal的其他文献
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{{ truncateString('Yair Rosenthal', 18)}}的其他基金
Collaborative Research: Correcting sea surface temperature proxies for seasonal biases: combined data and model investigation
合作研究:修正海面温度代理的季节性偏差:结合数据和模型研究
- 批准号:
2202818 - 财政年份:2022
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Global and regional perspectives of Pleistocene paleoceanography in the western Pacific warm pool based on new sites from IODP Expedition 363
基于 IODP 363 号远征新地点的西太平洋暖池更新世古海洋学的全球和区域视角
- 批准号:
1834208 - 财政年份:2018
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
NSFOCE-BSF: Foraminiferal Na/Ca: a new proxy for reconstructing Cenozoic seawater composition
NSFOCE-BSF:有孔虫Na/Ca:重建新生代海水成分的新代理
- 批准号:
1634573 - 财政年份:2016
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Site survey and coring of potential IODP drill sites in the Western Pacific Warm Pool
西太平洋暖池潜在 IODP 钻探地点的现场调查和取芯
- 批准号:
1131371 - 财政年份:2013
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Deep Ocean Sensitivity to, and Role in the Transition from mid-Pliocene Warmth to Northern Hemisphere Glaciation
深海对上新世中期温暖向北半球冰川转变的敏感性及其作用
- 批准号:
1334691 - 财政年份:2013
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Collaborative Research: High resolution paleoceanography in the heart of the Equatorial Pacific Cold Tongue
合作研究:赤道太平洋冷舌中心的高分辨率古海洋学
- 批准号:
1003400 - 财政年份:2010
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Collaborative Research: Temperature reconstruction of the western equatorial Pacific thermocline during the last ~2000 years: a paleo perspective for modern observations
合作研究:近2000年西赤道太平洋温跃层的温度重建:现代观测的古视角
- 批准号:
0902977 - 财政年份:2009
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Planning Visit in Support of a Collaborative Paleoclimate Study Between USA and Indonesian Scientists
计划访问以支持美国和印度尼西亚科学家之间的古气候合作研究
- 批准号:
0945029 - 财政年份:2009
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing Holocene Climate Variability and the Indonesian throughflow in the Western Equatorial Pacific
合作研究:重建全新世气候变率和西赤道太平洋的印度尼西亚通流
- 批准号:
0502504 - 财政年份:2005
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
Assessing the effects of calcite saturation on the benthic foraminiferal Mg/Ca-temperature relationship using a homothermal depth transect in the Norwegian Sea
使用挪威海恒温深度样线评估方解石饱和度对底栖有孔虫 Mg/Ca-温度关系的影响
- 批准号:
0341412 - 财政年份:2004
- 资助金额:
$ 18.1万 - 项目类别:
Standard Grant
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