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Do diatoms record the oceanic Ge:Si ratio on glacial-interglacial time scales?

Do diatoms record the oceanic Ge:Si ratio on glacial-interglacial time scales?
硅藻是否记录了冰期-间冰期时间尺度上的海洋Ge:Si比率?
批准号:
0327016
负责人:
James McManus
金额:
$11.82万
依托单位:
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:
2003-10-01 至 2006-09-30

项目摘要

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中文摘要
翻译
该提案获得资助,以确定在南极洲硅质沉积物中观察到的Ge/Si记录是否是全球记录,方法是以低分辨率测量整个太平洋盆地三个岩心的样品,并以高分辨率测量一个。捕获详细的Ge:Si变化对理解Si循环,风化,海底火山作用和南极生物泵的全球变化具有影响。
英文摘要
This proposal is funded to determine whether the Ge/Si record observed in siliceous sediments from Antarctica is a global record by measuring samples from three cores throughout the Pacific basin at low resolution and one at high resolution. Capturing detailed Ge:Si variations has implications for understanding the Si cycle, global variations in weathering, seafloor volcanisms and the Antarctica biological pump.
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Collaborative Research: Investigation of paired uranium and chromium isotope behavior during authigenic metal uptake into continental margin sediments
Expedition Objective Research (IODP Expedition 340): Diagenesis in tephra-rich marine sediments and the impact of reactive iron on enhanced carbon burial
Expedition Objective Research (IODP Expedition 340): Diagenesis in tephra-rich marine sediments and the impact of reactive iron on enhanced carbon burial
  • 批准号:
    1259326
  • 项目类别:
    Standard Grant
  • 资助金额:
    $15.0万
  • 财政年份:
    2013
  • 负责人:
    James McManus
  • 依托单位:
Expedition Objective Research (IODP Expedition 340): Diagenesis in tephra-rich marine sediments and the impact of reactive iron on enhanced carbon burial
  • 批准号:
    1360077
  • 项目类别:
    Standard Grant
  • 资助金额:
    $15.0万
  • 财政年份:
    2013
  • 负责人:
    James McManus
  • 依托单位:
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