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Collaborative Research: The Geochemistry of Hydrothermal Sediments, Middle Valley, Juan De Fuca Ridge

Collaborative Research: The Geochemistry of Hydrothermal Sediments, Middle Valley, Juan De Fuca Ridge
合作研究：热液沉积物的地球化学，中谷，胡安德富卡海岭
批准号：
9314517
负责人：
Paul Baker
金额：
$12.23万
依托单位：
Duke University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1993
资助国家：
美国
项目状态：
已结题
起止时间：
1993-12-15 至 1997-05-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314517&HistoricalAwards=false
关键词：
CollaborativeResearchGeochemistryHydrothermalSediments

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Baker 9314517 In this project the PIs will determine the O, C, Sr, and Pb-isotopic composition of carbonates recovered from the Middle Valley of the northern JdF at ODP Leg 139. They will also perform whole-core radiography to determine textural variations downhole. The objective is to obtain past and existing thermal profiles, fluid advection, and sources of metals in sediments of past and present hydrothermal system. They also wish to investigate the sulfide ore deposition in these sediments. The PIs' and their collaborators' ultimate goal is to develop models of hydrothermal fluid circulation and chemical exchange between fluids and sediments through time. A second Leg is now being planned (along with USGS collaborators) to drill the Middle Valley sediments to specifically examine the problem of sulfide mineralization.
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