Collaborative Research: A three-dimensional, subseafloor, IODP observatory network in the northeastern Pacific Ocean, and initiation of large-scale, cross-hole experiments

该项目将支持钻孔仪器的设计、建造和采购，该仪器是目前正在胡安德富卡山脊东侧建设的水文观测站网络的组成部分。作为这项基于工程的努力的关键组成部分，研究人员将计划实验来阐明年轻海洋地壳的三维水力特性和水文地质过程。该项目将导致观测仪器（主要是CORKs）的进步，以及ROV/HOV平台上为仪表井眼提供服务的特殊修改和工具。IODP Juan de Fuca裂谷侧翼钻井的第二阶段需要这样的设计努力，继2004年中期301考察期间在JOIDES Resolution完成的第一阶段之后。拟议工作的更广泛影响包括促进对海底水文地质学的理解，增强301考察的科学成果，促进更强大的观测仪器的发展，加强物理、化学和生物科学家之间的跨学科合作，以及培训学生。

This project will support the design, construction, and acquisition of borehole instrumentation that is an integral component of a hydrologic observatory network currently under construction on the eastern flank of the Juan de Fuca Ridge. As a key component of this engineering-based effort, the researchers will plan experiments to elucidate three-dimensional hydraulic properties and hydrogeologic processes in young oceanic crust. The project will lead to advances in observatory instrumentation (primarily CORKs) and special modifications and tools for servicing instrumented boreholes from ROV/HOV platforms. Such design efforts are required for the second phase of IODP Juan de Fuca rift flank drilling, following on the first phase completed on the JOIDES Resolution during Expedition 301 in mid-2004. Broader impacts of the proposed work include contributing to an understanding of seafloor hydrogeology, augmenting the scientific results from Expedition 301, contributing to the development of more robust observatory instrumentation, enchancing interdisciplinary collaborations among physical, chemical, and biological scientists, and training of students.