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Point Defects and Transport Properties of a Lower Mantle Phase (Mg,Fe)O: The Role of Hydrogen and Ferric Iron

Point Defects and Transport Properties of a Lower Mantle Phase (Mg,Fe)O: The Role of Hydrogen and Ferric Iron
下地幔相 (Mg,Fe)O 的点缺陷和输运特性：氢和三价铁的作用
批准号：
0809330
负责人：
Shun-ichiro Karato
金额：
$46.98万
依托单位：
Yale University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2008
资助国家：
美国
项目状态：
已结题
起止时间：
2008-08-01 至 2013-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0809330&HistoricalAwards=false
关键词：
PointDefectsTransportPropertiesLower

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英文摘要
In this project, the PI will investigate the nature of point defects and related transport properties in (Mg,Fe)O such as diffusion and electrical conductivity. (Mg,Fe)O is one of the major minerals in the Earth's lower mantle and these properties are key to the understanding of the dynamics of the lower mantle. A particularly important issue is the role of oxidation state and of hydrogen in controlling these properties. A review of existing literature suggests that the role of hydrogen in controlling these properties in (Mg,Fe)O is likely very different and pressure dependent. Through a systematic study of point defect-related properties, the PI and his team will obtain the first data set to understand the transport properties of the largest part of Earth's mantle.
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  • 批准号：
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  • 项目类别：
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  • 资助金额：
    $33.0万
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  • 依托单位：
    Yale University
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  • 项目类别：
    Standard Grant
  • 资助金额：
    $43.49万
  • 财政年份：
    2018
  • 负责人：
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  • 依托单位：
    Yale University
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  • 批准号：
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  • 项目类别：
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  • 资助金额：
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  • 财政年份：
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  • 依托单位：
    Yale University
An experimental study on grain-size evolution during phase transformations in the mantle transition zone and its influence on rheological properties
  • 批准号：
    1445356
  • 项目类别：
    Continuing Grant
  • 资助金额：
    $29.99万
  • 财政年份：
    2015
  • 负责人：
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  • 依托单位：
    Yale University
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