The Use of U/Th Decay Series Radioisotopes to Estimate Rates of Water-Rock Exchange in the Coso Geothermal System
The Use of U/Th Decay Series Radioisotopes to Estimate Rates of Water-Rock Exchange in the Coso Geothermal System
批准号:
8804735
负责人:
Douglas Hammond
金额:
$9.35万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-08-01 至 1991-01-31
中文摘要
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英文摘要
The PI's propose measuring U and Th decay series radionuclides in geothermal brines and their associated solid phases obtained from commercial geothermal wells in the Coso Geothermal Field. Past work in the Salton Sea geothermal field demonstrate that radioactive disequilibria between brines and solid phases can be used to determine (1) behavior of actinides and their daughters in high temperature waters; (2) rates of brine-rock interaction, and (3) hydrogeologic parameters. A crystalline plutonic/metamorphic basement below Coso provides a different environment (from Salton Sea; sedimentary basement) to contrast the effects of different host rocks on fluid evolution.
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U.S. GEOTRACES Pacific Meridional Transect: Measurements of Actinium-227 to Trace Solute Transport
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批准号:1830168
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项目类别:Standard Grant
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资助金额:$13.88万
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财政年份:2018
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负责人:Douglas Hammond
-
依托单位:
GEOTRACES Arctic Section: Actinium-227 as a Naturally-occurring Tracer of Dissolved Material Transport in the Arctic Ocean
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批准号:1436958
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项目类别:Standard Grant
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资助金额:$13.55万
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财政年份:2014
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负责人:Douglas Hammond
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依托单位:
Collaborative Research: Use of Triple Oxygen Isotopes and O2/Ar to constrain Net/Gross Oxygen Production during upwelling and non-upwelling periods in a Coastal Setting
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批准号:1260692
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项目类别:Standard Grant
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资助金额:$42.12万
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财政年份:2013
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负责人:Douglas Hammond
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依托单位:
GEOTRACES Pacific Section: 227Ac Distribution in Deep Waters as a Constraint on Mixing and Mass Transport of Solutes
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批准号:1235124
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项目类别:Standard Grant
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资助金额:$14.74万
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财政年份:2013
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负责人:Douglas Hammond
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依托单位:
Germanium Isotope Systematics in Marine Systems
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批准号:1061700
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项目类别:Standard Grant
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资助金额:$31.73万
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财政年份:2011
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负责人:Douglas Hammond
-
依托单位:
COLLABORATIVE RESEARCH (USC-UW): Evaluating Seawater Circulation Rates Through Permeable Sediments, Using Naturally Occurring Rn and Ra Isotopes
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批准号:0623413
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项目类别:Standard Grant
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资助金额:$16.49万
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财政年份:2006
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负责人:Douglas Hammond
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依托单位:
Collaborative Research: Examination of the Potential Sources for the Mid-Water Silica Anomaly in the NE Pacific
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批准号:0452088
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项目类别:Standard Grant
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资助金额:$9.61万
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财政年份:2005
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负责人:Douglas Hammond
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依托单位:
Collaborative Research (OSU and USC): Evaluating the Utility of Germanium Isotopes as a Paleoproxy
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批准号:0326575
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项目类别:Standard Grant
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资助金额:$3.44万
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财政年份:2003
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负责人:Douglas Hammond
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依托单位:
The Use of 15NH3 to Estimate Fractionation of Nitrogen Isotopes during Diagenesis of Organic Matter
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批准号:0136500
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项目类别:Standard Grant
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资助金额:$20.18万
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财政年份:2002
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负责人:Douglas Hammond
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依托单位:
Collaborative Studies (USC and UM): Fractionation of Ge and Si during Diagenesis, and its Implications for Regulating the Oceanic Ge/Si Ratio
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批准号:9911608
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项目类别:Standard Grant
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资助金额:$17.6万
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财政年份:2000
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负责人:Douglas Hammond
-
依托单位:
Application of 222Rn as a Tracer to Study Gas Hydrate Dynamics
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批准号:9730817
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项目类别:Continuing Grant
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资助金额:$16.94万
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财政年份:1998
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负责人:Douglas Hammond
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依托单位:
Collaborative Research: Benthic Flux and Early Diagenesis of Selected Trace Elements
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批准号:9616241
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项目类别:Continuing Grant
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资助金额:$4.82万
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财政年份:1996
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负责人:Douglas Hammond
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依托单位:
Benthic Fluxes of Biogeochemically Active Materials on the JGOFS Transect in the Central Equatorial Pacific
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批准号:9022406
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项目类别:Continuing Grant
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资助金额:$43.04万
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财政年份:1991
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负责人:Douglas Hammond
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依托单位:
In Situ Benthic Flux Measurements in the North Pacific Ocean
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批准号:8516297
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项目类别:Continuing Grant
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资助金额:$25.76万
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财政年份:1986
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负责人:Douglas Hammond
-
依托单位:
Diagenetic Reactions and Transport of Carbon and Silica Across the Sediment-Water Interface in the Southern California Borderland
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批准号:8209249
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项目类别:Standard Grant
-
资助金额:$19.55万
-
财政年份:1982
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负责人:Douglas Hammond
-
依托单位:
Migration Rates of Dissolved Species Across the Sediment-Water Interface
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批准号:7909412
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项目类别:Continuing Grant
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资助金额:$9.88万
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财政年份:1979
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负责人:Douglas Hammond
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依托单位:
Migration Rates of Dissolved Species Across the Sediment- Water Interface
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批准号:7681154
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项目类别:Standard Grant
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资助金额:$4.69万
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财政年份:1977
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负责人:Douglas Hammond
-
依托单位:
国内基金
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