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COLLABORATIVE RESEARCH: Iridium Deposition in Central Greenland Ice: Temporal Variability of Cosmic and Volcanic Sources

COLLABORATIVE RESEARCH: Iridium Deposition in Central Greenland Ice: Temporal Variability of Cosmic and Volcanic Sources
合作研究:格陵兰中部冰中的铱沉积:宇宙和火山源的时间变化
批准号:
9316207
负责人:
Edward Boyle
金额:
$8.5万
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:
1994-08-15 至 1998-01-31

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中文摘要
翻译
Boyle pi在与1908年通古斯事件和1783年拉基火山喷发有关的冰芯中发现了铱(Ir)异常。与Robert Rocchia (Paris)合作,他们将把这些分析扩展到其他冰芯,目标如下:1)测试和验证发现,2)对冰芯样本进行系统研究,以澄清Ir的分配,3)调查背景Ir沉积的时间变化。这些结果对地层记录中关于撞击与火山来源的铱的争论,以及将火山作用和影响与气候变化联系起来具有重要意义。
英文摘要
9316207 Boyle PIs have found iridium (Ir) anomalies in ice cores associated with the 1908 Tunguska event and the 1783 Laki eruption. In collabooration with Robert Rocchia (Paris), they will extend these analyses to other ice cores with the following goals: 1) test and verify findings, 2) make systematic studies on ice core samples to clarify partitioning of Ir, and 3) investigate temporal variability of background Ir deposition. Results have implications for debate over impact vs. volcanic sources for iridium in the stratigraphic record, and also for linking volcanism and impacts to climatic changes.
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国内基金
海外基金
Research on Quantum Field Theory without a Lagrangian Description
  • 批准号:
    24ZR1403900
  • 项目类别:
    省市级项目
  • 资助金额:
    --
  • 批准年份:
    2024
  • 负责人:
    SATOSHI NAWATA
  • 依托单位:
Cell Research
Cell Research
Cell Research (细胞研究)