Geochemistry of Redox-Sensitive Metals in Marine Sediments
Geochemistry of Redox-Sensitive Metals in Marine Sediments
批准号:
9730081
负责人:
Steven Emerson
金额:
$17.41万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-03-15 至 2000-02-29
中文摘要
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英文摘要
This project will use data and modeling to develop a quantified description of the relationship between the diagenesis of redox-sensitive trace metals (Fe, Mn, Mo, V, U, Re, Cd) and sediment oxidation state. Sediment solid- phase and pore-water data will be generated for a suite of sediment cores from the Chile margin that experience a range of oxidation states, and the data will be used to assess a diagenetic model. The model will then be applied to a global database of bottom-water oxygen, organic carbon flux and sedimentation rate to determine authigenic fluxes of the metals. Key goals are (1) to develop a quantitative capability to predict bottom-water oxygen levels and organic carbon flux from sediment metal data and (2) to derive estimates of global metal fluxes between sediments and bottom waters in the present and recent geologic past. ***
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Net Biological Oxygen Production Using O2 Measurements on Argo Floats
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The Marine Dissolved N2/Ar Ratio, A Tracer for Deep Ocean Denitrification?
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财政年份:2007
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SGER: Paleoceanographic Evidence for Changes in Ocean Circulation and the Ecological Effects of Iron Fertilization in the Northeast Pacific (0-20 ka)
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SGER: Extracting Holocene Sea Surface Temperature, Ventilation, and Productivity Records from Antarctic Continental Margin Sediments: Novel Geochemical Insights from Palmer Deep
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依托单位:
Collaborative Reserach: Mechanisms Controlling Upper Ocean Carbon Fluxes in the North Pacific
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批准号:0628663
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项目类别:Standard Grant
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资助金额:$252.0万
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财政年份:2006
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依托单位:
Stable Isotopes of Argon in Seawater: New Tracers of Deep Water Formation Processes
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财政年份:2005
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依托单位:
Symposium on New Approaches in Marine Organic Biogeochemistry
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批准号:0331843
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资助金额:$2.3万
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财政年份:2003
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负责人:Steven Emerson
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依托单位:
Tracers of Biological Productivity and Gas Exchange
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批准号:0242139
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项目类别:Standard Grant
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资助金额:$72.5万
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财政年份:2003
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负责人:Steven Emerson
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依托单位:
Biological Oxygen Production in the Pacific Subtropical Gyres using Glider Surveys
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批准号:0223372
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项目类别:Standard Grant
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资助金额:$35.4万
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财政年份:2003
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负责人:Steven Emerson
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依托单位:
U.S.-Germany Cooperative Research: Organic Matter Preservation in the Ocean
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批准号:0128796
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项目类别:Standard Grant
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资助金额:$2.16万
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财政年份:2002
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负责人:Steven Emerson
-
依托单位:
Collaborative Research: Geochemistry of Redox-Sensitive Elements
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批准号:9911103
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项目类别:Continuing Grant
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资助金额:$20.61万
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财政年份:2000
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负责人:Steven Emerson
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依托单位:
The Biological Carbon Pump in the Subtropical North Pacific Ocean: Mechanisms of Nutrient Supply
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批准号:9906922
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项目类别:Continuing Grant
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资助金额:$62.96万
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财政年份:2000
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负责人:Steven Emerson
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依托单位:
Net Biological Oxygen Production at the Japanese JGOFS Time-Series Station
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批准号:9819181
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项目类别:Standard Grant
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资助金额:$5.86万
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财政年份:1999
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依托单位:
SGER: North Pacific Subtropical Gyre
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批准号:9728856
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项目类别:Standard Grant
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资助金额:$2.96万
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财政年份:1997
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负责人:Steven Emerson
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依托单位:
国内基金
海外基金
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