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Dredging the Samoan Hotspot

Dredging the Samoan Hotspot
疏浚萨摩亚热点地区
批准号:
9819038
负责人:
Stanley Hart
金额:
$23.58万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1999
资助国家:
美国
项目状态:
已结题
起止时间:
1999-03-15 至 2002-02-28
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中文摘要
翻译
萨摩亚热点附近的四个火山特征将被疏浚。对挖泥船的岩石进行测年和地球化学分析将有助于记录活跃热点的存在、它的可能位置,以及来自汤加海沟的俯冲物质可能对火山活动造成的污染。样品还将提供玄武岩玻璃,在足够深的水深下淬火,以确保保留完整的稀有气体和其他挥发物。
英文摘要
Four volcanic features near the Samoan hotspot will be dredged. Dating and geochemical analysis of the dredge rocks will help document the existence of an active hotspot, its probable location, and the possible contamination of the volcanism by subducted material from the Tonga Trench. The samples will also provide basalt glass quenched at great enough water depth to ensure retention of a full complement of rare gases and other volatiles.
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会议论文
Collaborative Research: CSEDI--The Dynamics of Plume-Trench Interaction: Samoa-Tonga
  • 批准号:
    0652707
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $36.52万
  • 财政年份:
    2007
  • 负责人:
    Stanley Hart
  • 依托单位:
The Role of Sulfide in Mantle Pb Geochemistry
Accomplishment Based Renewal: Geochemical Evolution of the Mantle
  • 批准号:
    0509891
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $58.18万
  • 财政年份:
    2005
  • 负责人:
    Stanley Hart
  • 依托单位:
Collaborative Research: The Samoan Hotspot, Past and Present
海外基金