SGER - Final Processing and Publication of Conductive Heat Flow Data from the Endeavour Hydrothermal Field, Juan de Fuca Ridge

SGER - 来自胡安德富卡海岭奋进热液田的传导热流数据的最终处理和发布

• 批准号: 0902626
• 负责人: Harlan Johnson
• 金额: --
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-12-01 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0902626&HistoricalAwards=false
• 关键词: SGER; Final; Processing; Publication; Conductive

Hydrothermal circulation (evidenced by hot springs) at mid-ocean ridges supports exotic chemosynthetic biological communities and causes a chemical exchange that affects the chemistry of both the crust and the ocean. One significant consequence of this process is mineralization of the crust. Most of the world?s economic copper deposits, for example, formed in the way. Understanding ridge hydrothermal processes is thus an important scientific objective. A spepfic objective of the Ridge2000 Program (R2K) is to model the hydrothermal systems and processes at three Integrated Studies Sites (ISS), one in the Lau Basin in the western Pacific, one on the equatorial East Pacific Rise, and one on the Juan de Fuca Ridge off the west coast of the U.S. A particularly important constraint on such models is observed heat flow. Measured heat flow values are needed to constrain these models, but few such data are available in part because conventional methods cannot be used. The UW heat flow blanket was developed and field-tested to solve this problem, but the data have not been analyzed, and the method thus remains unproven. Analysis of the thermal blanket data will immediately provide useful heat flow data for the Endeavour Site, and, once proven, the thermal blanket technique can be used to acquire heat flow data at the EPR and Lau sites as well. This project will also provide an opportunity for at least one undergraduate student to participate in basic research.

中山脊的热液循环（由温泉证明）支持外来的化学合成生物群落，并引起影响地壳和海洋化学的化学交换。该过程的一个重要结果是地壳的矿化。例如，世界上大多数的经济铜矿床以方式形成。因此，了解山脊水热过程是一个重要的科学目标。 Ridge2000计划（R2K）的一个小目标是对三个综合研究地点（ISS）的水热系统和过程进行建模，一个在西太平洋的Lau盆地中，一个在赤道东太平洋上升，一个在美国西海岸的Juan de Fuca Ridge上的一个在美国西海岸，这是对美国尤其重要的构建模型的限制。需要测量的热流动值来限制这些模型，但是很少有这样的数据部分是因为无法使用常规方法。开发并进行了现场测试以解决此问题，但是尚未分析数据，因此该方法仍未得到证实。对热毯数据的分析将立即为努力部位提供有用的热流数据，一旦证明，热毯技术也可用于在EPR和LAU站点获得热流数据。该项目还将为至少一名本科生参加基础研究提供机会。