Structural Studies of Hydrogarnet and Vesuvianite
Structural Studies of Hydrogarnet and Vesuvianite
批准号:
8719848
负责人:
George Lager
金额:
$4.72万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1988
资助国家:
美国
项目状态:
已结题
起止时间:
1988-06-15 至 1990-11-30
中文摘要
该项目涉及几个晶体结构分析 水石榴子石和相关矿物vesuvianite的组成。 天然钛钙铁榴石的单晶中子衍射研究 和火山岩将进行确定的位置, H原子的环境。 维苏威火山与许多 水石榴石,在某些情况下,显示红外光谱 与水石榴石非常相似。 分析这一结构, 类似石榴石的矿物可以提供关于 水石榴石中H取代的性质。 的结果予以 研究将提供对晶体化学因素的深入了解 控制着天然水石榴石的“稳定性”, 它们存在于许多重要的岩石类型中。
英文摘要
This project involves the crystal-structural analysis of several compositions of hydrogarnet and the related mineral vesuvianite. Single-crystal neutron-diffraction studies of natural Ti-andradite and vesuvianite will be carried out to determine the position and environment of the H atom. Vesuvianite is intergrown with many hydrogarnets and, in some cases, exhibits an infrared spectrum very similar to hydrogarnet. Analysis of the structure of this garnet-like mineral may provide additional information on the nature of the H substitution in hydrogarnet. The results of these studies will provide insights into the crystal-chemical factors which govern the "stability" of natural hydrogarnets, minerals which occur in a number of important rock types.
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会议论文
High-Pressure Crystal Chemistry and Compressibility of Hydrous Mantle Phases
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批准号:0337534
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项目类别:Standard Grant
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资助金额:$24.39万
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财政年份:2004
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负责人:George Lager
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依托单位:
Acquisition of Equipment to Establish a High-Pressure Single-Crystal X-Ray Laboratory
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批准号:0131979
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项目类别:Standard Grant
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资助金额:$5.55万
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财政年份:2002
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负责人:George Lager
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依托单位:
Effect of Hydrogen Bonding on the Compressibility of Chondrodite and Clinohumite
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批准号:0073734
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项目类别:Standard Grant
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资助金额:$10.55万
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财政年份:2000
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负责人:George Lager
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依托单位:
Compressibility of Hydrous Garnet
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批准号:9203897
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项目类别:Standard Grant
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资助金额:$5.8万
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财政年份:1992
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负责人:George Lager
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依托单位:
Crystal Chemistry of Hydrogarnets
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批准号:8205605
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项目类别:Standard Grant
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资助金额:$3.67万
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财政年份:1983
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负责人:George Lager
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依托单位:
Computer Simulation of Mineral Structures at High Temperatures
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批准号:7712905
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项目类别:Standard Grant
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资助金额:$2.7万
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财政年份:1977
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负责人:George Lager
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依托单位:
海外基金