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Geochemical Record of Thermohaline Flow Through the Southwest Atlantic: Modern Calibration and Down Core Reconstructions

Geochemical Record of Thermohaline Flow Through the Southwest Atlantic: Modern Calibration and Down Core Reconstructions
西南大西洋温盐流的地球化学记录：现代校准和地下核心重建
批准号：
9633499
负责人：
Delia Oppo
金额：
$65.08万
依托单位：
Woods Hole Oceanographic Institution
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1996
资助国家：
美国
项目状态：
已结题
起止时间：
1996-11-15 至 2000-04-30
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9633499&HistoricalAwards=false
关键词：
GeochemicalRecordThermohalineFlowThrough

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中文摘要
翻译
该项目将分析沿巴西海岸S 30度深度断面采集的岩心中底栖有孔虫中的稳定同位素和Cd/Ca。将在每个地点采集底层水样本，并与活体有孔虫的成分进行比较，以验证化学成分之间的关系。然后将对最好的岩芯进行分析，以检查上一次冰川周期中水团结构的变化，采样距离足够近，以解决亚轨道变异性。争论的焦点是北方和南方源头水团之间的联系。
英文摘要
This project will analyze stable isotopes and CD/Ca in benthic foraminifera from cores to be taken along a depth transect at 30degrees S off the coast of Brazil. Samples of bottom water will be taken at each site and compared with the composition of living foraminifera to verify the relationship of chemistries. The best cores will then be analyzed to examine changes in water mass structure over the last glacial cycle, with sampling close enough to resolve suborbital variability. At issue is the linkage between northern- and southern-source water masses.
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会议论文
Disentangling Drivers of Heat and Freshwater Transport through the Indonesian Seas Across Timescales: Insights from Marine Sediments and Model Simulations
Holocene Upper Atlantic Temperature Trend: AMOC Variability or Anomalous Heat Uptake
Developing bottom water temperature (BWT) calibrations using elemental ratios in benthic foraminifera
Variability in the Atlantic Meridional Overturning Circulation During Marine Isotope Stage 3
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