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A Stable Isotope Investigation of the Impact of Primary Production from Pack Ice on Southern Ocean Sediment Proxy Records

A Stable Isotope Investigation of the Impact of Primary Production from Pack Ice on Southern Ocean Sediment Proxy Records
浮冰初级生产对南大洋沉积物代理记录影响的稳定同位素研究
批准号：
9633183
负责人：
Lowell Stott
金额：
$18.05万
依托单位：
University of Southern California
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：
1996-11-01 至 1999-10-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9633183&HistoricalAwards=false
关键词：
StableIsotopeInvestigationImpactPrimary

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英文摘要
Previous work indicates that the particulate organic matter (POM) in sea ice of the Weddell Sea is strongly enriched in 13C and 15N relative to seawater POM. This project will test the hypothesis that stable isotopic values in Southern Ocean sediments are significantly affected by ice-algal input, which may have been misinterpreted as variations in nutrient utilization and productivity. The project will examine transects of surface sediments to determine if a north-south gradient exists consistent with the hypothesis, and will also determine stable isotope variations in several cores spanning the last glacial to track possible changes in ice-algal input.
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    $43.14万
  • 财政年份：
    2016
  • 负责人：
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国内基金
海外基金
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  • 项目类别：
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  • 资助金额：
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  • 批准年份：
    2010
  • 负责人：
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  • 依托单位：
    南京大学