课题基金 / 基金详情

Collaborative Research: Incorporation and Preservation of Magnesium in Planktonic Foraminifera: Implications for Mg-Paleothermometry and Calcite Solubility

Collaborative Research: Incorporation and Preservation of Magnesium in Planktonic Foraminifera: Implications for Mg-Paleothermometry and Calcite Solubility
合作研究:浮游有孔虫中镁的掺入和保存:对镁古温度测量和方解石溶解度的影响
批准号:
9987060
负责人:
George Lohmann
金额:
$15.81万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-04-15 至 2002-09-30

项目摘要

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中文摘要
翻译
本项目将研究浮游有孔虫中方解石溶解度、水温、Mg/Ca和氧同位素比值之间的关系。将分析来自大西洋和太平洋6个深度样带的单个标本的地球化学变量和尺寸标准化质量,主要集中在岩心顶部,但包括与末次盛冰期样品的一些比较。还将审查不同的清洁技术对地球化学的影响,并将利用电子显微探针、同步加速器x射线衍射和x射线吸收光谱进行探索性工作,以确定镁结合的矿物学。
英文摘要
This project will examine the relationships between calcite solubility, water temperature, Mg/Ca and oxygen isotopic ratios in planktic foraminifera. Individual specimens from 6 depth transects in the Atlantic and Pacific Oceans will be analyzed for geochemical variables and for size-normalized mass, concentrating on core tops but including some comparison with samples from the last glacial maximum. The effect of different cleaning techniques upon geochemistry will also be examined, and exploratory work witll be done on the use of electron microprobe, synchrotron X-ray diffraction and X-ray absorption spectroscopy to identify the mineralogy of Mg incorporation.
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Collaborative Research: Past Deep-Sea Carbonate Ion Concentrations as Constraints on Scenarios Purporting to Explain Quaternary Atmospheric CO2 Changes
  • 批准号:
    0081957
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $3.57万
  • 财政年份:
    2000
  • 负责人:
    George Lohmann
  • 依托单位:
Reconstruction of Glacial-Interglacial Changes in the Ocean's Carbonate Ion Content
  • 批准号:
    0083314
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $21.0万
  • 财政年份:
    2000
  • 负责人:
    George Lohmann
  • 依托单位:
Effects of Shell Calcification Depth on Benthic-Planktonic 14C/C
  • 批准号:
    9416863
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $12.44万
  • 财政年份:
    1994
  • 负责人:
    George Lohmann
  • 依托单位:
Chemistry and Morphology of Secondary Calcification of Deep-Living Planktic Forminifera
  • 批准号:
    9301722
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $40.21万
  • 财政年份:
    1993
  • 负责人:
    George Lohmann
  • 依托单位:
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)