Hydrothermal Fluid Inclusions in Rocks Dredged from Mid- Ocean Spreading Centers

从大洋中部扩散中心挖出的岩石中的热液流体包裹体

• 批准号: 8710717
• 负责人: David Vanko
• 金额: $ 6.03万
• 依托单位: Georgia State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8710717&HistoricalAwards=false
• 关键词: Hydrothermal; Fluid; Inclusions; Rocks; Dredged

The objective of this project is to investigate fluid inclusions in high temperature veins of hydrothermal origin in oceanic rocks. Samples recovered by dredging from the mid- Atlantic Ridge and the western Pacific will be examined and classified using standard heating/freezing techniques. Data will be used to infer the temperatures, fluid compositions, and the pressures within the ancient hydrothermal systems. These results will be combined with petrography and mineral chemical analysis to determine the sample histories from the primary igneous stage through metamorphism/metasomatism and hydrothermal veining. The project is unique because the fluid inclusion technique provides a method of "sampling" deep hydrothermal fluids in sub-crustal oceanic systems. The research to be performed under this award will be done in an undergraduate institution.

本项目的目的是研究海洋岩石热液高温脉体中的流体包裹体。通过疏浚从大西洋中脊和西太平洋回收的样本将使用标准加热/冷冻技术进行检查和分类。数据将用于推断古代热液系统内的温度、流体成分和压力。这些结果将与岩石学和矿物化学分析相结合，以确定从初级火成岩阶段到变质/交代和热液脉化的样品历史。该项目的独特之处在于，流体包裹体技术提供了一种在地壳下海洋系统中“取样”深层热液流体的方法。该奖项下的研究将在本科院校进行。