Collaborative research: Large-scale, long-term, multi-directional, cross-hole experiments in the upper oceanic crust using a borehole observatory network

学术价值：这项建议是在东北太平洋胡安德富卡海脊东侧的洋壳中进行一些水文地质实验。这些实验的目的是研究海洋地壳内流体、化学物质和微生物在综合海洋钻探计划完成的钻孔之间的运动。这项工作将是第一次在洋壳中进行长期的交叉钻孔测试。在2010年综合海洋钻探计划探险一年两年后，将对井下仪器进行维修，并从井中的多个深度采集样本。三维数值模拟将评估洋壳内的流动是如何工作的。总而言之，拟议的工作将限制热运输、化学运输和海底微生物学对许多社区产生有价值的结果。广泛的影响：该项目将培训研究生和本科生，并将利用2010年综合海洋钻探计划考察已经到位的现有教育和推广计划。

Intellectual Merit: This proposal is to conduct a number of hydrogeologic experiments in ocean crust on the east flank of the Juan de Fuca Ridge in the Northeast Pacific Ocean. The aim of the experiments is to study the movement of fluids, chemicals and microbes within the ocean crust between drill holes completed by the Integrative Ocean Drilling Program. The work will be the first to run a long-term cross-drill-hole test in the ocean crust. One and two years following the Integrative Ocean Drilling Program expedition in 2010, the down hole instruments will be serviced and samples collected from multiple depths in the hole. Three-dimensional numerical modeling will evaluate how flow works within the oceanic crust. Taken together, the proposed work will constrain heat transport, chemical transport, and sub-seafloor microbiology making the results of value to many communities.Broader Impacts: This project will train graduate and undergraduate students and will leverage off of an existing education and outreach program already in place for the Integrative Ocean Drilling Program expedition in 2010.