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Seawater-Lower Ocean Crust Exchange Processes

Seawater-Lower Ocean Crust Exchange Processes
海水-下层洋壳交换过程
批准号:
9416620
负责人:
Stanley Hart
金额:
$22.94万
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:
1996-01-01 至 1997-12-31

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中文摘要
翻译
该项目将通过验证这一信号来自大陆地壳颗粒的存在并被循环海水带入橄榄岩深处的假设,解决长期存在的海洋橄榄岩中Sr同位素比率过高的问题。该假设将通过分析其他同位素系统来验证,包括Nd、Pb、Os和be。这一假设的证实将对全球和海洋的生化循环和通量产生重大影响。* * *
英文摘要
9416620 Hart This project will address a long-standing problem of excessively high Sr isotopic ratio in oceanic peridotites by testing the hypothesis that this signal results from the presence of particles derived from continental crust and carried deep into the peridotites by circulating seawater. The hypothesis will be tested by analyzing other isotopic systems, including Nd, Pb, Os and Be. Confirmation of the hypothesis would have major implications for global, and oceanic, biochemical cycles and fluxes. ***
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Collaborative Research: CSEDI--The Dynamics of Plume-Trench Interaction: Samoa-Tonga
  • 批准号:
    0652707
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $36.52万
  • 财政年份:
    2007
  • 负责人:
    Stanley Hart
  • 依托单位:
The Role of Sulfide in Mantle Pb Geochemistry
Accomplishment Based Renewal: Geochemical Evolution of the Mantle
  • 批准号:
    0509891
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $58.18万
  • 财政年份:
    2005
  • 负责人:
    Stanley Hart
  • 依托单位:
Collaborative Research: The Samoan Hotspot, Past and Present
海外基金