Salton Sea Scientific Drill Hole: A Natural Laboratory for Investigation of the Mineral-Solution Equilibria in a Deep Geothermal System

索尔顿海科学钻孔：研究深层地热系统矿物溶液平衡的天然实验室

• 批准号: 8721225
• 负责人: Juhn Liou
• 金额: $ 11.95万
• 依托单位: Stanford 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: 1988-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8721225&HistoricalAwards=false
• 关键词: Salton; Sea; Scientific; Drill; Hole

The proposal involves continuation of a two year study investigating mineral-solution equilibria and low-grade metamorphism induced by circulatory fluids in the Salton Sea hydrothermal system. Cores and fluid samples obtained by the Salton Sea Scientific Drilling Project have been characterized in terms of structures and compositions of vein and alteration minerals (especially epidote). An analog study of sample from an Icelandic geothermal system was carried out in addition. Continued research will evaluate (1) details of fluid-mineral equilibria, (2) crystal, chemical, and isotopic characteristics of hydrothermal epidotes, (3) low temperature reactions in sandstone reservoir rocks, and (4) relations between fracturing, hydrothermal circulation, and fracture sealing in a hydrothermal system. These results will be applied to evaluation of reaction processes in water-rock systems worldwide.

该建议涉及继续进行为期两年的研究 研究矿物-溶液平衡和低级变质作用 由索尔顿海热液系统中的循环流体引起。 索尔顿海科学钻探获得的岩心和流体样品 项目的特点是结构和 脉状和蚀变矿物（特别是绿帘石）的组成。 一个 进行了冰岛地热系统样品的模拟研究 除此之外。 继续研究将评估（1） 流体-矿物平衡;（2）晶体、化学和同位素 热液绿帘石特征;（3）低温反应 砂岩储集岩中，（4）压裂， 热液循环和热液中的裂缝封闭性 系统 这些结果将用于评价反应 全球水岩系统的变化过程。