Collaborative Research: Past Deep-Sea Carbonate Ion Concentrations as Constraints on Scenarios Purporting to Explain Quaternary Atmospheric CO2 Changes
Collaborative Research: Past Deep-Sea Carbonate Ion Concentrations as Constraints on Scenarios Purporting to Explain Quaternary Atmospheric CO2 Changes
批准号:
0081957
负责人:
George Lohmann
金额:
$3.57万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-09-01 至 2002-08-31
中文摘要
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英文摘要
Summary: This ESH award will attempt to estimate past concentration of carbonate ion in the ocean during glacial/interglacial climate transitions by examining the occurrence and magnitude of changes in sediment carbonate preservation. Carbonate concentration will be estimated by two methods: mass/size ratio of planktic foraminifera and the ratio of sand-sized to total calcite, in depth transects of cores from the eastern and western tropical Atlantic, Pacific and Indian Oceans.
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Collaborative Research: Incorporation and Preservation of Magnesium in Planktonic Foraminifera: Implications for Mg-Paleothermometry and Calcite Solubility
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批准号:9987060
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项目类别:Continuing Grant
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资助金额:$15.81万
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财政年份:2000
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负责人:George Lohmann
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依托单位:
Reconstruction of Glacial-Interglacial Changes in the Ocean's Carbonate Ion Content
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批准号:0083314
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项目类别:Continuing Grant
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资助金额:$21.0万
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财政年份:2000
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负责人:George Lohmann
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依托单位:
Effects of Shell Calcification Depth on Benthic-Planktonic 14C/C
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批准号:9416863
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项目类别:Continuing Grant
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资助金额:$12.44万
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财政年份:1994
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负责人:George Lohmann
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依托单位:
Chemistry and Morphology of Secondary Calcification of Deep-Living Planktic Forminifera
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批准号:9301722
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项目类别:Continuing Grant
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资助金额:$40.21万
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财政年份:1993
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负责人:George Lohmann
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依托单位:
Convariation Among Delta 18o, Delta 13c Sr and M>g in the Shells of Deep-Living Planktonic Foraminifera
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批准号:9101553
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项目类别:Continuing Grant
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资助金额:$22.5万
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财政年份:1991
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负责人:George Lohmann
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依托单位:
Use of Deep-Living Planktonic Foraminifera to Probe the Past Thermocline
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批准号:8912280
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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:1989
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负责人:George Lohmann
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依托单位:
Reconstructing the Glacial Thermocline at Little Bahama Bank
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批准号:8813307
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项目类别:Standard Grant
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资助金额:$12.39万
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财政年份:1988
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负责人:George Lohmann
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依托单位:
Seasonal Changes in Foraminiferal Flux and Shell Chemistry in the Northern North Atlantic
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批准号:8800524
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项目类别:Standard Grant
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资助金额:$10.91万
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财政年份:1988
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负责人:George Lohmann
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依托单位:
The Isotopic Signature of Upwelling in the Arabian Sea
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批准号:8710782
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项目类别:Standard Grant
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资助金额:$10.61万
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财政年份:1987
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负责人:George Lohmann
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依托单位:
Detailed Morphologic and Environmental Analysis of a Fossil Speciation Event
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批准号:8606701
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项目类别:Standard Grant
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资助金额:$11.02万
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财政年份:1986
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负责人:George Lohmann
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依托单位:
Pleistocene Abyssal Circulation Dynamics: Equatorial Atlantic
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批准号:8511014
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项目类别:Continuing Grant
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资助金额:$43.85万
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财政年份:1985
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负责人:George Lohmann
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依托单位:
Geological Shape Analysis Conference
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批准号:8410221
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项目类别:Standard Grant
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资助金额:$1.5万
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财政年份:1984
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负责人:George Lohmann
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依托单位:
Polar Neogene Radiolarian Taxonomy
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批准号:8317087
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项目类别:Continuing Grant
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资助金额:$15.39万
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财政年份:1984
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负责人:George Lohmann
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依托单位:
Eigenshape Analysis of Microfossils
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批准号:8214930
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项目类别:Continuing Grant
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资助金额:$15.04万
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财政年份:1982
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负责人:George Lohmann
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依托单位:
An Evaluation of Carbon Isotope Variations in Deep Water Foraminifers
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批准号:8024608
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项目类别:Standard Grant
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资助金额:$2.44万
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财政年份:1981
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负责人:George Lohmann
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依托单位:
South Atlantic Benthic Foraminifers
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批准号:8110935
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项目类别:Standard Grant
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资助金额:$5.14万
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财政年份:1981
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负责人:George Lohmann
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依托单位:
Cenozoic Paleoceanography Project (Cenop)
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批准号:7918286
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项目类别:Continuing Grant
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资助金额:$23.62万
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财政年份:1979
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负责人:George Lohmann
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依托单位:
A Benthonic Foraminiferal Study of Late Pleistocene Deep- Water Circulation Between the Brazil and Angola Basins
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批准号:7819768
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项目类别:Continuing Grant
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资助金额:$16.04万
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财政年份:1978
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负责人:George Lohmann
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依托单位:
国内基金
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资助金额:45.0万元
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负责人:滕冰
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