Geochemical and Structural Evolution of Gabbro-Hosted Magma-Hydrothermal Systems: East Greenland

辉长岩岩浆热液系统的地球化学和结构演化：东格陵兰

• 批准号: 8803754
• 负责人: Dennis Bird
• 金额: $ 14.85万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803754&HistoricalAwards=false
• 关键词: Geochemical; Structural; Evolution; Gabbro; Hosted

The PI continued study of the geochemical and structural evolution of gabbro-hosted magma-hydrothermal systems during crustal rifting between Greenland and Eurasia and formation of the N. Atlantic ocean basin. Four specific topics will be addressed: (1) relations between vein systems and magmatic and structural deformation of gabbro bodies, (2) what controls mass transfer associated with hydrothermal alteration, (3) what is relation between mineralogic and isotopic alteration, and (4) what are sources of hydrothermal solutions and when did sea water become an important component of these fluids. A variety of field, petrologic, mineralogic, and theoretical methods will be used to answer these questions.

PI继续研究地球化学和构造 辉长岩岩浆热液系统演化 格陵兰岛和欧亚大陆之间的地壳裂谷和形成 N.大西洋盆地 将讨论四个具体专题： (1)脉系与岩浆、构造的关系 辉长岩体的变形，（2）控制质量转移的因素 与热液蚀变的关系;（3） 矿物学和同位素蚀变之间的关系，以及（4） 水热溶液的来源，以及海水何时成为 这些液体的重要组成部分。 各种领域， 岩石学、矿物学和理论方法将用于 回答这些问题