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Atlantic Paleoventilation Rates from Deep Sea Coral

Atlantic Paleoventilation Rates from Deep Sea Coral
深海珊瑚的大西洋古通风率
批准号:
9730147
负责人:
Robert Anderson
金额:
$9.73万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-03-15 至 2000-11-30

项目摘要

项目成果

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中文摘要
翻译
该项目将使用U/Th和14C定年法对从大西洋中深度打捞的珊瑚进行测年,以确定末次冰期和去冰期期间通风量的变化。样品的14C日期和U/Th日期之间的差异,在校正了放射性碳产生和储层效应之后,可以确定珊瑚生活的水的年龄。水龄的差异反映了水源的差异,因此可以限制与气候状态有关的循环变化。
英文摘要
9730147 Anderson This project will use U/Th and 14C dating in corals dredged from intermediate depths of the Atlanti Ocean to identify changes in ventilation rate during the last glacial and deglacial intervals. The difference between the 14C date and the U/Th date of a sample can determine the age of the water in which the coral lived, after correction for radiocarbon porduction and reservoir effects. Differences in water age reflect differences in source of the water, and therefore can constrain circulation changes related to climatic states.
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Support for the U.S. GEOTRACES Project Office
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