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.

项目负责人继续研究格陵兰岛和欧亚大陆之间的地壳裂谷以及北大西洋盆地形成期间辉长岩岩浆热液系统的地球化学和结构演化。 将讨论四个具体主题：（1）矿脉系统与岩浆和辉长岩体结构变形之间的关系，（2）什么控制与热液蚀变相关的质量传递，（3）矿物学和同位素蚀变之间的关系是什么，以及（4）热液的来源是什么以及海水何时成为这些流体的重要组成部分。 将使用各种现场、岩石学、矿物学和理论方法来回答这些问题。