Chemical and Isotopic Exchange Among Carbonate Minerals, Organic Matter and Seawater on Modern Carbonate Platforms, Florida and Bahamas
Chemical and Isotopic Exchange Among Carbonate Minerals, Organic Matter and Seawater on Modern Carbonate Platforms, Florida and Bahamas
批准号:
9102543
负责人:
Lynn Walter
金额:
$21.74万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1991
资助国家:
美国
项目状态:
已结题
起止时间:
1991-06-15 至 1993-11-30
中文摘要
美国国家科学基金会之前和正在进行的由PI资助的研究表明,孔隙水交换碳酸盐颗粒、有机物和海水的范围比之前认为的要广泛得多。因此,由于重结晶碳酸盐中储存了同位素贫化的碳,平台碳酸盐可能起到比先前预想的更多有机碳的吸收作用。国际沉积研究所请求资金继续她在确定化学和微构造沉积参数方面寻找沉积物/生物关系的工作。佛罗里达州海湾的一些工作将继续进行,但新的研究将在大巴哈马和小巴哈马河岸开始。
英文摘要
Previous and on-going NSF-funded research by the PI shows that pore-water exchange carbonate particles, organic matter and sea water is far more extensive than previously thought. As a result, platform carbonates may act as a sink for more organic carbon than previously envisioned because of the storage of isotopically- depleted C in recrystallized carbonates. The PI requests funds to continue her work in looking at sediment/organism relations in determining chemical and microstructrual sedimentary parameters. Some work will continue in Florida Bay, but new studies will begin on Great and Little Bahama banks.
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会议论文
Collaborative Resarch: A Comparative Study of Carbonate Weathering Mechanisms and Fluxes in Carbonate-Rich, Mid-Latitude Watersheds Across Landscape and Landuse Types
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批准号:0518965
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项目类别:Standard Grant
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资助金额:$21.58万
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财政年份:2006
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负责人:Lynn Walter
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依托单位:
Acquisition of Replacement Equipment for the Experimental and Analytical Geochemistry Laboratory EAGL
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批准号:0318037
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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:2004
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负责人:Lynn Walter
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依托单位:
Geochemical Controls on Carbonate Equilibria and Mass Transport in Glaciated Mid-Continent Watersheds
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批准号:0208182
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项目类别:Standard Grant
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资助金额:$19.89万
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财政年份:2002
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负责人:Lynn Walter
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依托单位:
Acquisition of a High Resolution ICP Mass Spectrometer
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批准号:9526980
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项目类别:Standard Grant
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资助金额:$22.8万
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财政年份:1996
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负责人:Lynn Walter
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依托单位:
Collaborative Research: Tropical Taphonomy and Porewater Geochemistry: Comparative Analysis of Molluscan Preservation in Siliciclastic and Carbonate Sediments, Western Carribean
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批准号:9628369
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项目类别:Standard Grant
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资助金额:$7.97万
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财政年份:1996
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负责人:Lynn Walter
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依托单位:
Magnitude of the Carbonate Dissolution Recycling Flux from Shallow Marine Carbonate Sediments: Evaluation from Pore Fluid and Sediment Geochemistry
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批准号:8811058
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项目类别:Standard Grant
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资助金额:$9.1万
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财政年份:1989
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负责人:Lynn Walter
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依托单位:
Magnitude of the Carbonate Dissolution Recycling Flux from Shallow Marine Carbonate Sediments: Evaluation from Pore Fluid and Sediment Geochemistry
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批准号:9096130
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项目类别:Standard Grant
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资助金额:$1.91万
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财政年份:1989
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负责人:Lynn Walter
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依托单位:
Presidential Young Investigator Award: Experimental and Applied Carbonate Geochemistry
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批准号:9096176
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项目类别:Continuing Grant
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资助金额:$15.85万
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财政年份:1989
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负责人:Lynn Walter
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依托单位:
Acquisition of an Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES)
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批准号:8720510
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项目类别:Standard Grant
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资助金额:$5.53万
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财政年份:1988
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负责人:Lynn Walter
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依托单位:
Presidential Young Investigator Award: Experimental and Applied Carbonate Geochemistry
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批准号:8657180
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项目类别:Continuing Grant
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资助金额:$15.35万
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财政年份:1987
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负责人:Lynn Walter
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依托单位:
Acquisition of X-Ray Diffractometer
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批准号:8318924
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项目类别:Standard Grant
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资助金额:$1.6万
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财政年份:1984
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负责人:Lynn Walter
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依托单位:
A Laboratory Investigation of Chemical Controls on CarbonateCement Mineralogy
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批准号:8407535
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项目类别:Standard Grant
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资助金额:$10.95万
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财政年份:1984
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负责人:Lynn Walter
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依托单位:
海外基金