Seawater-Lower Ocean Crust Exchange Processes
Seawater-Lower Ocean Crust Exchange Processes
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
中文摘要
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
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批准号:0652707
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项目类别:Continuing Grant
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资助金额:$36.52万
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财政年份:2007
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负责人:Stanley Hart
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依托单位:
The Role of Sulfide in Mantle Pb Geochemistry
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批准号:0635530
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项目类别:Standard Grant
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资助金额:$35.0万
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财政年份:2007
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负责人:Stanley Hart
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依托单位:
Accomplishment Based Renewal: Geochemical Evolution of the Mantle
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批准号:0509891
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项目类别:Continuing Grant
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资助金额:$58.18万
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财政年份:2005
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负责人:Stanley Hart
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依托单位:
Collaborative Research: The Samoan Hotspot, Past and Present
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批准号:0351437
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项目类别:Standard Grant
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资助金额:$19.47万
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财政年份:2005
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负责人:Stanley Hart
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依托单位:
CSEDI: Collaborative Research: New Experimental Approaches to He/U-Th Partitioning in the Mantle
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批准号:0215608
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项目类别:Standard Grant
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资助金额:$22.26万
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财政年份:2002
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负责人:Stanley Hart
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依托单位:
The Os Isotope Systematics of MORB Mantle
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批准号:0096634
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项目类别:Standard Grant
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资助金额:$10.0万
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财政年份:2001
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负责人:Stanley Hart
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依托单位:
Geochemical Evolution Of The Mantle
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批准号:0125917
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项目类别:Continuing Grant
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资助金额:$49.95万
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财政年份:2001
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负责人:Stanley Hart
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依托单位:
Dredging the Samoan Hotspot
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批准号:9819038
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项目类别:Continuing Grant
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资助金额:$23.58万
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财政年份:1999
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负责人:Stanley Hart
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依托单位:
Geochemical Evolution of the Mantle
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批准号:9804891
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项目类别:Continuing Grant
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资助金额:$46.5万
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财政年份:1998
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负责人:Stanley Hart
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依托单位:
Molluscs as Recorders of Ridge Volcanism and Hydrothermal Vent Field Activity
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批准号:9730857
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项目类别:Continuing Grant
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资助金额:$19.57万
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财政年份:1998
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负责人:Stanley Hart
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依托单位:
High Resolution Calibration and Validation of Proxy Records in Corals
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批准号:9632210
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项目类别:Standard Grant
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资助金额:$12.99万
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财政年份:1996
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负责人:Stanley Hart
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依托单位:
Antarctic Rift and Hot Spot Volcanism
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批准号:9419094
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项目类别:Standard Grant
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资助金额:$17.98万
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财政年份:1995
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负责人:Stanley Hart
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依托单位:
Development Upgrade of NTIMS-Mass Spectrometer
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批准号:9413837
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项目类别:Standard Grant
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资助金额:$10.0万
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财政年份:1994
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负责人:Stanley Hart
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依托单位:
Origin of PGE's in the Bushveld Complex: Os Isotope Constraints
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批准号:9315986
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项目类别:Standard Grant
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资助金额:$9.01万
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财政年份:1994
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负责人:Stanley Hart
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依托单位:
Geochemical Evolution of the Mantle
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批准号:9219958
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项目类别:Continuing Grant
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资助金额:$76.5万
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财政年份:1993
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负责人:Stanley Hart
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依托单位:
Microscale Pb and S Isotope Variations in Hydrothermal Minerals from the Vibrurnum Pb-Zn Belt, S.E. Missouri
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批准号:9105326
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项目类别:Continuing Grant
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资助金额:$18.0万
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财政年份:1991
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负责人:Stanley Hart
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依托单位:
Antarctic Rift and Hot Spot Volcanism
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批准号:9117853
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项目类别:Continuing Grant
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资助金额:$20.0万
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财政年份:1991
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负责人:Stanley Hart
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依托单位:
Chemistry of Oceanic Crust: Duration and Fluxes of Crust - Seawater Interactions
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批准号:9101340
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项目类别:Continuing Grant
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资助金额:$44.66万
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财政年份:1991
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负责人:Stanley Hart
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依托单位:
Geochemical Evolution of the Mantle
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批准号:9096194
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项目类别:Continuing Grant
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资助金额:$40.46万
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财政年份:1990
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负责人:Stanley Hart
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依托单位:
Development of a Pt/Os Geochronometer
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批准号:9004205
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项目类别:Standard Grant
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资助金额:$4.5万
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财政年份:1990
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负责人:Stanley Hart
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依托单位:
海外基金