Effects of microbial versus inorganic processes on the geochemistry of sulfur during seawater alteration of oceanic lithosphere
Effects of microbial versus inorganic processes on the geochemistry of sulfur during seawater alteration of oceanic lithosphere
批准号:
0424558
负责人:
Jeffrey Alt
金额:
$15.75万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2004
资助国家:
美国
项目状态:
已结题
起止时间:
2004-09-01 至 2008-08-31
中文摘要
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英文摘要
It is proposed to investigate the geochemistry of sulfur in a section of upper oceanic crust generated at a fast spreading rate, as sampled by ODP Leg 206 at Site 1256. Three hypotheses will be tested: (1) that there is a net addition of sulfur to uppermost oceanic crust formed at fast spreading rates and having moderate sedimentation rates, in contrast to the net loss of sulfur from upper crust formed at slow and intermediate rates, (2) that biological activity is important in the fixation of sulfur in the upper ocean crust, and (3) alternatives to the microbial hypothesis involving inorganic processes.
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Serpentinization processes in the subsurface of a seafloor ultramafic-hosted hydrothermal system
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批准号:1536242
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项目类别:Standard Grant
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资助金额:$25.99万
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财政年份:2015
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负责人:Jeffrey Alt
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依托单位:
Organic Carbon in Altered Submarine Basalts: Tracing the Subsurface Biosphere and Role in the Global Carbon Cycle
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批准号:1334758
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项目类别:Standard Grant
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资助金额:$11.81万
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财政年份:2013
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负责人:Jeffrey Alt
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依托单位:
Collaborative Research: Stable isotope tracers of the subsurface biosphere and its geochemical effects in oceanic ridge flank basement
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批准号:1129631
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项目类别:Standard Grant
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资助金额:$21.2万
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财政年份:2011
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负责人:Jeffrey Alt
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依托单位:
The Role of Serpentinites in Subduction Recycling of Sulfur and Organic Carbon
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批准号:0809000
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项目类别:Continuing Grant
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资助金额:$32.82万
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财政年份:2008
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负责人:Jeffrey Alt
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依托单位:
Stable Isotope Investigation of a Fossil Hydrothermal System in Oceanic Crust Formed at a Superfast Spreading Rate (ODP/IODP Hole 1256D)
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批准号:0647784
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项目类别:Continuing Grant
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资助金额:$25.38万
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财政年份:2007
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负责人:Jeffrey Alt
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依托单位:
Collaborative Research: Multiple Sulfur Isotope Tracers of the Subsurface Biosphere in Oceanic Basement
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批准号:0622949
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项目类别:Continuing Grant
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资助金额:$17.24万
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财政年份:2006
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负责人:Jeffrey Alt
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依托单位:
A Stable Isotopic Study Of Seawater Interaction With The Lower Ocean Crust, ODP Hole 735B
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批准号:0220964
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项目类别:Standard Grant
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资助金额:$22.46万
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财政年份:2002
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负责人:Jeffrey Alt
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依托单位:
Isotopic Profiles Through Ocean Crust: Tracing Fluid-Rock Interactions and Quantification of Seawater Exchange
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批准号:9911901
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项目类别:Continuing Grant
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资助金额:$24.2万
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财政年份:2000
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负责人:Jeffrey Alt
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依托单位:
Hydration and Sulfur Metasomatism of Forearc Mantle
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批准号:9818887
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项目类别:Standard Grant
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资助金额:$17.88万
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财政年份:1999
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负责人:Jeffrey Alt
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依托单位:
Trace Element and Strontium Isotopic Compositions of Secondary Minerals from Ocean Crust Hydrothermal Reaction Zones: Controls on the Composition of Black Smoker Fluids
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批准号:9633773
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项目类别:Continuing Grant
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资助金额:$15.17万
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财政年份:1996
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负责人:Jeffrey Alt
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依托单位:
Quantification of Upper Crustal Alteration and Ridge Flank Hydrothermal Fluxes
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批准号:9633353
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项目类别:Continuing Grant
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资助金额:$18.37万
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财政年份:1996
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负责人:Jeffrey Alt
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依托单位:
The Geochemistry of Sulfur during Serpentinization of Oceanic Ultramafic Rocks
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批准号:9416007
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项目类别:Continuing Grant
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资助金额:$23.05万
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财政年份:1995
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负责人:Jeffrey Alt
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依托单位:
A Strontium Isotopic Profile through Hydrothermally Altered Ocean Crust
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批准号:9314218
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项目类别:Continuing Grant
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资助金额:$17.1万
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财政年份:1993
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负责人:Jeffrey Alt
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依托单位:
Submarine Alteration and Mineralization in Volcanic Arc Basement, ODP Site 786
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批准号:9217214
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项目类别:Continuing Grant
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资助金额:$9.0万
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财政年份:1992
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负责人:Jeffrey Alt
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依托单位:
Quantitative Logging of Alteration and Veins in Drillcore from Hole 504B
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批准号:9217423
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项目类别:Standard Grant
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资助金额:$5.37万
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财政年份:1992
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负责人:Jeffrey Alt
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依托单位:
The Sulfur Budget for a Pelagic Sediment Section, ODP Leg 129: Effect of Sediments on Cycling of Sulfur in SubductionZones
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批准号:9018136
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项目类别:Continuing Grant
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资助金额:$11.54万
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财政年份:1990
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负责人:Jeffrey Alt
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依托单位:
The Geochemistry of Sulfur During Submarine Hydrothermal Alteration of the Troodos Ophiolite, Cyprus
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批准号:8904788
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项目类别:Standard Grant
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资助金额:$6.0万
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财政年份:1989
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负责人:Jeffrey Alt
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依托单位:
Sources and Cycling of Sulfur in Subduction Zones: The Geochemistry of Sulfur in the Mariana Island Arc, Trench andTrough
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批准号:8816878
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项目类别:Standard Grant
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资助金额:$4.83万
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财政年份:1989
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负责人:Jeffrey Alt
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依托单位:
Sources and Cycling of Sulfur in Subduction Zones: The Geochemistry of Sulfur in the Mariana Island Arc, Trench andTrough
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批准号:9096115
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项目类别:Standard Grant
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资助金额:$6.37万
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财政年份:1989
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负责人:Jeffrey Alt
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依托单位:
The Petrology of Sulfides and Geochemistry of Sulfur in Hydrothermally Altered Oceanic Rocks
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批准号:8608886
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项目类别:Standard Grant
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资助金额:$8.5万
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财政年份:1987
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负责人:Jeffrey Alt
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依托单位:
国内基金
海外基金
碳-铁-微生物对滩涂围垦稻田土壤团聚体形成和稳定的调控机制
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批准号:41977088
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项目类别:面上项目
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资助金额:61.0万元
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批准年份:2019
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负责人:刘亚龙
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依托单位:
水热炭的微生物陈化(Microbial-aged Hydrochar)及其对稻田氨挥发的影响机制
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批准号:41877090
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项目类别:面上项目
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资助金额:61.0万元
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批准年份:2018
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负责人:冯彦房
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依托单位:
微生物发酵过程的自组织建模与优化控制
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批准号:60704036
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项目类别:青年科学基金项目
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资助金额:21.0万元
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批准年份:2007
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负责人:高学金
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依托单位: