Participation in the French Wireline Reentry Program DIANAUT

海洋地球科学的一个主要重点是了解水文地质过程在大洋岩石圈演化中的作用。现已知，地壳中的流体在改变地壳化学、控制海水化学和冷却大洋岩石圈方面起着重要作用。虽然海洋钻探提供了一种直接检查这些过程结果的机制，但需要进行长期实验和重复观察才能了解这些过程发生的速度。这样的实验最好是通过定期重新进入钻孔或部署长期仪器来进行。钻井船作业的成本导致国际社会开发出在钻孔中部署试验的替代方法。该奖项将支持美国科学家与法国同事一起使用潜水器在北大西洋的钻孔中放置仪器。美国科学家将负责测量流体流量和地壳应变。由于该项目代表着进入一个新兴研究领域的冒险，是一个旧研究课题的新方法，因此它是作为SGER奖获得资助的。

A major emphasis of marine geosciences is to understand the role of hydrogeological processes in the evolution of the oceanic lithosphere. The role of fluids in the crust is now known to be important in modifying crustal chemistry, in controlling the chemistry of seawater and in cooling the oceanic lithosphere. Although ocean drilling provides a mechanism for examining the results of these processes directly, performing long-term experiments and repeat observations are required to understand the rate at which these processes occur. Such experiments are best performed through reentry of drill holes at periodic intervals or by deployment of long term instruments. The cost of drillship operations has lead the international community to develop alternate ways of deploying experiments in drill holes. This award will support US scientists to participate with French colleagues using a submersible to place instruments in drillholes in the North Atlantic. The US scientists will be responsible for measurement of fluid flow and crustal strain. Because the project represents a venture into an emerging research area and is a new approach to an old research topic it is being funded as an SGER award.