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.

洋中脊的热液循环（以温泉为证据）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性质的化学交换。这一过程的一个重要后果是地壳的矿化。世界上大多数？的经济铜矿床，例如，形成的方式。因此，了解海脊热液过程是一个重要的科学目标。Ridge2000计划（R2K）的一个特殊目标是模拟三个综合研究站点（ISS）的热液系统和过程，一个在西太平洋的Lau盆地，一个在赤道东太平洋海隆，一个在美国西海岸外的Juan de Fuca海岭。需要测量热流值来约束这些模型，但由于无法使用常规方法，因此很少有此类数据可用。为了解决这个问题，开发了UW热流毯并进行了现场测试，但数据尚未进行分析，因此该方法尚未得到证实。热毯数据的分析将立即提供有用的热流数据的奋进网站，一旦证明，热毯技术可以用来获取热流数据在EPR和刘网站以及。该项目还将为至少一名本科生提供参与基础研究的机会。