Continuing Experiments on the Chemical Kinetics of Ore-And Rock-Forming Minerals in Hydrothermal Systems

热液系统中成矿和造岩矿物化学动力学的持续实验

• 批准号: 8804091
• 负责人: Alexandra Navrotsky
• 金额: $ 23.84万
• 依托单位: Princeton University
• 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
• 起止时间: 1988-08-15 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8804091&HistoricalAwards=false
• 关键词: Continuing; Experiments; Chemical; Kinetics; Ore

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.

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、天青石和钠长石（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。