Coupled Temporal Changes in Water Chemistry and Biological Community Structure at Newly-Formed Hydrothermal Vents
Coupled Temporal Changes in Water Chemistry and Biological Community Structure at Newly-Formed Hydrothermal Vents
批准号:
9303678
负责人:
Karen Von Damm
金额:
$10.37万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1993
资助国家:
美国
项目状态:
已结题
起止时间:
1993-05-15 至 1997-10-31
中文摘要
EPR波峰新形成热液喷口水化学与生物群落结构耦合时间变化研究在精细尺度(9°49.6′~ 9°50.6′n)上对流体化学与生物群落结构耦合演化进行了研究支持复杂动物群落的丰富弥散流是主要焦点。这项工作与一个资助的生物项目相结合,该项目在9-10北纬之间的东太平洋隆起,研究新形成的热液系统中化学和生物群落的共同进化。1991年4月的阿尔文计划在几天内记录了海底火山爆发的发生。1992年,阿尔文潜水到这个地方,记录了喷口的化学成分和周围生物群落的重大变化。由于这是海洋中脊系统中唯一定义喷发事件和新热液系统形成的“时间零点”的部分,因此该地点提供了前所未有的机会来跟踪喷口化学和相关生物群落结构的时间变化。
英文摘要
Coupled temporal changes in water chemistry and biological community structure at newly-formed hydrothermal vents on the EPR crest This is a study of the coupled evolution of fluid chemistry and biological community structure on a fine scale (9 degree 49.6' - 9 degree 50.6'N) with the abundant diffuse flow which supports complex animal communities as the principal focus. The work is coupled with a funded biology program on the East Pacific Rise between 9-10 N to study the coevolution of the chemistry and biological communities in newly formed hydrothermal systems. The Alvin program in April 1991 documented to within days the occurence of a seafloor volcanic eruption. In 1992 Alvin dives to this site documented significant changes in both the chemistry of the vents and the biological communities surrounding them. As this is the only portion of the mid-ocean ridge system defining "time zero" for an eruptive event and the formation of a new hydrothermal system, this site offers an unprecedented opportunity to follow temporal changes in vent chemistry and associated biological community structure.
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Evaluation of EPR Hydrothermal Systems: Causes of Continued Chemical Instability at 9-10 degrees N vs. Stability at 21 degrees N
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批准号:0002458
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项目类别:Continuing Grant
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资助金额:$38.46万
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财政年份:2001
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负责人:Karen Von Damm
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依托单位:
Collaborative Research: Lithium Isotopes in Mid-Ocean Ridge Hydrothermal Fluids: Determining Controls and Assessing the Use of Lithium as a Geochemical Tracer
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批准号:9911612
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项目类别:Standard Grant
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资助金额:$10.02万
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财政年份:2000
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负责人:Karen Von Damm
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依托单位:
Gas and Fluid Chemistry of Hydrothermal Systems on a Superfast Spreading Center: Southern East Pacific Rise
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批准号:9419156
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项目类别:Continuing Grant
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资助金额:$41.21万
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财政年份:1998
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负责人:Karen Von Damm
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依托单位:
RIDGE/Nordic Volcanological Institute (NorFA) Summer School:Active Processes at Mid-Ocean Ridges
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批准号:9704781
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项目类别:Standard Grant
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资助金额:$11.35万
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财政年份:1997
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负责人:Karen Von Damm
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依托单位:
The RIDGE Coordinating Office 1995-1998
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批准号:9528852
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项目类别:Continuing Grant
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资助金额:$152.65万
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财政年份:1995
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负责人:Karen Von Damm
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依托单位:
Collaborative Research: Temporal Evolution of Hydrothermal, Volcanic, and Geologic Properties of the EPR 9-10 Degrees N, Following the 1991 Eruption
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批准号:9300508
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项目类别:Continuing Grant
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资助金额:$52.79万
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财政年份:1994
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负责人:Karen Von Damm
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依托单位:
Geochemical Analyses of Hydrothermal Fluids and Massive Sulfides from the Lucky Strike Site
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批准号:9403408
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项目类别:Continuing Grant
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资助金额:$4.35万
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财政年份:1994
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负责人:Karen Von Damm
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依托单位:
Alvin Diving on the EPR 9-10 Degrees North: Hydrothermal, Volcanological, and Geochemical Studies in Support of ODP Bare Rock Drilling
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批准号:9296158
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项目类别:Standard Grant
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资助金额:$4.95万
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财政年份:1992
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负责人:Karen Von Damm
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依托单位:
Alvin Diving on the EPR 9-10 Degrees North: Hydrothermal, Volcanological, and Geochemical Studies in Support of ODP Bare Rock Drilling
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批准号:9101440
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项目类别:Standard Grant
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资助金额:$5.05万
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财政年份:1990
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负责人:Karen Von Damm
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依托单位:
海外基金