Continuing Experiments on the Chemical Kinetics of Ore-And Rock-Forming Minerals in Hydrothermal Systems
Continuing Experiments on the Chemical Kinetics of Ore-And Rock-Forming Minerals in Hydrothermal Systems
批准号:
8804091
负责人:
Alexandra Navrotsky
金额:
$23.84万
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:
1988-08-15 至 1991-12-31
中文摘要
本项目将继续研究 矿物在热液溶液中的下列系统, 温度高达350摄氏度:方解石和文石(近 完成);萤石(接近完成);磁铁矿和赤铁矿(在 进展);钠长石(最近开始);和硫酸盐矿物 重晶石、天青石和角闪石(新研究) 我们也 研究溶解的盐和有机化合物对 石英、萤石、文石、方解石和 钠长石 应变和矿物缺陷密度对 目前正在测量方解石的溶解速率, 石英、萤石和钠长石。 这项工作 适用于热液矿石和矿床的成因, 晚期成岩作用和矿物蚀变过程。
英文摘要
This project will continue research on the dissolution kinetics of minerals in hydrothermal solutions for the following systems to temperatures of up to 350oC: calcite and aragonite (near completion); fluorite (near completion); magnetic and hematite (in progress); albite (recently begun); and the sulfate minerals barite, celestite and anglesite (new studies). We are also studying the effect dissolved salts and organic compounds have on dissolution rates of quartz, fluorite, aragonite, calcite and albite. The effect of strain and mineral defect densities on dissolution rate is being measured for calcite currently, and will be expanded to include quartz, fluorite and albite. This work applies to the genesis of hydrothermal ores and mineral deposits, to late diagenesis, and mineral alteration processes.
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Collaborative Research: Rare Earth Materials Under Extreme Conditions
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批准号:2209026
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项目类别:Continuing Grant
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资助金额:$63.7万
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财政年份:2022
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负责人:Alexandra Navrotsky
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依托单位:
Collaborative Research: Experimental and Computational Study of Structure and Thermodynamics of Rare Earth Oxides above 2000 C
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批准号:2015852
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项目类别:Standard Grant
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资助金额:$29.55万
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财政年份:2020
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负责人:Alexandra Navrotsky
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依托单位:
Collaborative Research: Experimental and Computational Study of Structure and Thermodynamics of Rare Earth Oxides above 2000 C
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批准号:1835848
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项目类别:Standard Grant
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资助金额:$47.62万
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财政年份:2018
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负责人:Alexandra Navrotsky
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依托单位:
SusChEM: Collaborative Research: experimental and computational study of structure and thermodynamics of rare earth oxides above 2000 C
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批准号:1506229
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项目类别:Standard Grant
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资助金额:$40.28万
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财政年份:2015
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负责人:Alexandra Navrotsky
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依托单位:
Carbides, Nitrides and Related Materials in Earth, Planetary, and Materials Science
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批准号:1441423
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项目类别:Standard Grant
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资助金额:$1.5万
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财政年份:2014
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负责人:Alexandra Navrotsky
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依托单位:
Thermodynamics of Rare Earth Minerals
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批准号:1321410
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项目类别:Standard Grant
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资助金额:$30.0万
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财政年份:2013
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负责人:Alexandra Navrotsky
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依托单位:
EAGER: Exploring Routes to Nanocomposites Linking Silicate and Carbon-Based Structures
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批准号:1240771
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项目类别:Standard Grant
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资助金额:$14.01万
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财政年份:2012
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负责人:Alexandra Navrotsky
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依托单位:
Materials World Network: Nanostructure and Thermodynamics of Polymer Derived Ceramics
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批准号:0907792
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项目类别:Continuing Grant
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资助金额:$67.5万
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财政年份:2009
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负责人:Alexandra Navrotsky
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依托单位:
Collaborative Research: Atomistic Mechanisms of Stabilizing Oxide Nanoparticles in Oxide-dispersion Strengthened Structural Materials
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批准号:0906344
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项目类别:Continuing Grant
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资助金额:$18.83万
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财政年份:2009
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负责人:Alexandra Navrotsky
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依托单位:
Energetics of Spatially Confined Solids
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批准号:0601892
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项目类别:Continuing Grant
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资助金额:$60.9万
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财政年份:2006
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负责人:Alexandra Navrotsky
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依托单位:
Calorimetry Under Extreme Conditions
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批准号:0634137
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项目类别:Continuing Grant
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资助金额:$55.0万
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财政年份:2006
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负责人:Alexandra Navrotsky
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依托单位:
US-German Materials Collaboration: Unusual Stability of Amorphous
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批准号:0502446
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项目类别:Continuing Grant
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资助金额:$0.0万
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财政年份:2005
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负责人:Alexandra Navrotsky
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依托单位:
Thermochemistry of Minerals
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批准号:0229332
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项目类别:Continuing Grant
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资助金额:$45.55万
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财政年份:2002
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负责人:Alexandra Navrotsky
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依托单位:
Energetics of Microporous Materials
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批准号:0101391
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项目类别:Continuing Grant
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资助金额:$53.79万
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财政年份:2001
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负责人:Alexandra Navrotsky
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依托单位:
Collaborative Research: NIRT: Surface Reactivity of Nanocrystalline Oxides and Oxyhydroxides: Implications for Processes in the Environment
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批准号:0123998
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项目类别:Continuing Grant
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资助金额:$33.93万
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财政年份:2001
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负责人:Alexandra Navrotsky
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依托单位:
Workshop on Mineral Physics and Earth Materials Research, May 1999
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批准号:9907269
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项目类别:Standard Grant
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资助金额:$1.5万
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财政年份:1999
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负责人:Alexandra Navrotsky
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依托单位:
IGERT Formal Proposal: Nanophases in the Environment, Agriculture, and Technology
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批准号:9972741
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项目类别:Continuing Grant
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资助金额:$266.17万
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财政年份:1999
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负责人:Alexandra Navrotsky
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依托单位:
Energetics of Microporous Materials
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批准号:9731782
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项目类别:Continuing Grant
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资助金额:$41.25万
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财政年份:1998
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负责人:Alexandra Navrotsky
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依托单位:
Energetics of Oxides and Oxyhydroxides, Especially of Transition Metals
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批准号:9725020
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项目类别:Standard Grant
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资助金额:$27.0万
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财政年份:1998
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负责人:Alexandra Navrotsky
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依托单位:
U.S.-Germany Cooperative Research: Determination of Thermodynamic Data Relevant for Si3N4- and SiC-based High-Tech Ceramics
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批准号:9796329
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项目类别:Standard Grant
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资助金额:$2.42万
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财政年份:1997
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负责人:Alexandra Navrotsky
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依托单位:
海外基金