Temperature and pH Dependence of Mineral Water Reaction Rates

矿泉水反应速率的温度和 pH 依赖性

• 批准号: 9305141
• 负责人: Susan Brantley
• 金额: $ 13万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9305141&HistoricalAwards=false
• 关键词: Temperature; pH; Dependence; Mineral; Water

The principal objective of this research project is to conduct laboratory experiments that will provide the foundation for quantitative prediction of mineral-water reactions. This research will ultimately find application in studies of groundwater aquifers and of fluid-mediated processes both at the Earth's surface and at depth. The proposed experiments involve measurement of dissolution rates, leaching, and hydrogen penetration for plagioclase, olivine and pyroxene. Leaching experiments will be conducted up to 800oC and over a pH range of 1 to 7. Techniques used to measure surface hydrogen and metal cation inventories include SIMS, RNRA, XPS, and Auger electron spectroscopy.

本研究项目的主要目标是 进行实验室实验， 矿泉水定量预测基础 反应. 这项研究最终将得到应用 在地下水含水层和流体介导的 在地球表面和深处都发生了变化 的 建议的实验涉及溶解的测量 斜长石的速率、浸出和氢渗透， 橄榄石和辉石。 浸出实验将是 在高达800 ℃和1至7的pH范围内进行。 用于测量表面氢和金属阳离子的技术 清单包括西姆斯、RNRA、XPS和俄歇电子 谱