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Radioisotopic Studies of Temporal Variability of Hydrothermal Circulation on the N. Cleft Segment, Juan de Fuca Ridge

Radioisotopic Studies of Temporal Variability of Hydrothermal Circulation on the N. Cleft Segment, Juan de Fuca Ridge
胡安德富卡海岭北裂段热液循环时间变化的放射性同位素研究
批准号:
9314564
负责人:
David Kadko
金额:
$14.38万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1994
资助国家:
美国
项目状态:
已结题
起止时间:
1994-01-15 至 1996-12-31

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9314564 Kadko The author proposes to test the hypothesis that an increase in 3- He/heat, following a megaplume event, reflects rapid degassing of a newly-permeable system, after which conditions should return to equilibrium with gradual precipitation of minerals and longer residence time of waters. He will use radioisotope tracers in vent fluids to be collected at the northern Cleft Segment of Juan de Fuca Ridge, which will be compared with data from 1990. There will also be a test deployment of a gamma detector to be used as a monitoring device.
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Collaborative Research: Sample Analysis to Test a Novel Method of Determining Atmospheric Deposition of Trace Elements to the Ocean/Ice System of the Arctic
  • 批准号:
    1460290
  • 项目类别:
    Standard Grant
  • 资助金额:
    $3.2万
  • 财政年份:
    2014
  • 负责人:
    David Kadko
  • 依托单位:
Collaborative Research: Management and Implementation of the U.S. Arctic GEOTRACES Study
  • 批准号:
    1356008
  • 项目类别:
    Standard Grant
  • 资助金额:
    $46.59万
  • 财政年份:
    2014
  • 负责人:
    David Kadko
  • 依托单位:
Collaborative Research: Management and Implementation of the U.S. Arctic GEOTRACES Study
  • 批准号:
    1455924
  • 项目类别:
    Standard Grant
  • 资助金额:
    $46.59万
  • 财政年份:
    2014
  • 负责人:
    David Kadko
  • 依托单位:
GEOTRACES Arctic Section: Determining the Pathways, Fate, and Flux of Atmospherically Derived Trace Elements in the ocean/ice system
  • 批准号:
    1434085
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $36.99万
  • 财政年份:
    2014
  • 负责人:
    David Kadko
  • 依托单位:
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