Collaborative Research: Seismic Investigation of the Rainbow Hydrothermal Field and its Tectono/magmatic Setting, Mid-Atlantic Ridge 36 Degrees 14'N

合作研究：彩虹热液场及其构造/岩浆背景的地震调查，大西洋中脊北纬 36 度 14

• 批准号: 0961680
• 负责人: Juan Pablo Canales
• 金额: $ 71.53万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-02-15 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0961680&HistoricalAwards=false
• 关键词: Collaborative; Research; Seismic; Investigation; Rainbow

Among the most exciting and unexpected findings related to plate tectonics was the discovery of the hydrothermal vents that populate the earth?s mid-ocean ridge system. Not only do these deep hot springs support a variety of exotic life forms, they are now known to be a primary means by which heat is extracted from the earth?s interior and to be a primary means of chemical exchange between the seafloor and the oceans. But just how heat is supplied to these systems, and how they relate to the tectonic environment remains poorly understood. This project will employ a combination of 3D and 2D high resolution seismic tomography, 2D multichannel reflection and micro-earthquake modeling define the relationship between magmatism, faulting, substrate lithology (rock types) and hydrothermal circulation at the Rainbow Hydrothermal Field on the Mid Atlantic Ridge. This integrated approach is designed to test several hypotheses related to hydrothermal activity and its relationship to the geological environment. Broader impacts include a substantial contribution to international studies of the mid-ocean ridge system, support for two Ph.D. thesis projects and experience for undergraduate interns.

与板块构造有关的最令人兴奋和意想不到的发现之一是发现了地球中洋脊系统中的热液喷口。这些深层温泉不仅支持各种奇异的生命形式，而且现在已知它们是从地球内部提取热量的主要手段，也是海底和海洋之间化学交换的主要手段。但究竟如何向这些系统提供热量以及它们与构造环境的关系仍然知之甚少。该项目将结合使用 3D 和 2D 高分辨率地震层析成像、2D 多道反射和微地震建模，定义大西洋中脊彩虹热液场的岩浆活动、断层、基底岩性（岩石类型）和热液循环之间的关系。这种综合方法旨在测试与热液活动及其与地质环境的关系相关的几种假设。更广泛的影响包括对洋中脊系统的国际研究做出重大贡献，支持两名博士生。本科实习生的论文项目和经验。