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Cenozoic History of Lithium Isotopes in Seawater as Recorded in Foraminifera - A Feasibility Study

Cenozoic History of Lithium Isotopes in Seawater as Recorded in Foraminifera - A Feasibility Study
有孔虫记录的海水中锂同位素的新生代历史 - 可行性研究
批准号:
0241807
负责人:
Philip Froelich
金额:
$10.62万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2003
资助国家:
美国
项目状态:
已结题
起止时间:
2003-04-01 至 2005-01-31

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中文摘要
翻译
这项工作将开发分析浮游有孔虫小样本(~2 mg)中锂同位素所需的电感耦合等离子体质谱分析方法。如果这项利用四极电感耦合等离子体质谱仪的技术成功,这项研究将分析岩心顶部样本,以确定当前的海水锂同位素信号是否被准确记录并保留在经过化学清洗的浮游有孔虫贝壳中。此外,这项研究还将分析岩心顶部样品中不同种类的浮游有孔虫,以测试不同物种之间的同位素分馏随生物或钙化深度的变化。
英文摘要
The effort will develop ICP-MS analytical methods needed to analyze lithium isotopes in small samples (~2mg) of planktic foraminifers. If the technique, which utilizes a quadrupole ICP-MS, is successful the study will analyze core top samples to determine if current seawater Li-isotope signal is accurately recorded and retained in chemically cleaned planktic foraminifer shells. In addition the study will analyze separate species of planktic foraminifers in core top samples to test for isotopic fractionation among different species as a function of biologic or calcification depth.
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Cenozoic History of Lithium Isotopes in Seawater as Recorded in Foraminifera - A Feasibility Study
  • 批准号:
    0455543
  • 项目类别:
    Standard Grant
  • 资助金额:
    $9.22万
  • 财政年份:
    2004
  • 负责人:
    Philip Froelich
  • 依托单位:
Collaborative Research: Paleoproxies and Benthic Fluxes - Establishing the Bottom Boundary Relationships for Ba, U, Mo and Ge
  • 批准号:
    0095064
  • 项目类别:
    Standard Grant
  • 资助金额:
    $13.0万
  • 财政年份:
    2001
  • 负责人:
    Philip Froelich
  • 依托单位:
Development and Application of AMS Carbon-14 Chronologies from Organic Carbon in Antarctic Marine Sediments
  • 批准号:
    9813941
  • 项目类别:
    Standard Grant
  • 资助金额:
    $12.97万
  • 财政年份:
    1998
  • 负责人:
    Philip Froelich
  • 依托单位:
Ge/Si-Opal and the "Missing Sink"-Investigation of Germanium Geochemistry and Paleoredox
  • 批准号:
    9811199
  • 项目类别:
    Standard Grant
  • 资助金额:
    $22.0万
  • 财政年份:
    1998
  • 负责人:
    Philip Froelich
  • 依托单位:
海外基金