Hydrologic Monitoring at the Nantroseize OOST Zone: A Pilot Study

该项目资助了pi提出的回收2006年5月与JAMSTEC新海6500潜水计划一起部署在熊野盆地的四个化学和水输送（CAT）设备的建议。目的是监测NANTROSEIZE钻井区（日本西南部）附近的逆冲断层（OOSTs）和锋面逆冲断层的流体渗漏情况。这些仪器最初是由ODP SGER拨款部署的，这对于利用“免费”的JAMSTEC船和潜水时间至关重要。这项工作旨在作为一项试点研究，使pi能够开始了解南开地区的渗漏行为，以及在计划该地区未来工作时可能出现的机会和问题。2007年，日本新海6500潜水提案获得批准。这项工作将允许pi对数据进行分析，以确定该地区渗漏的基本活动和化学成分，并重新部署新的仪器以保持观测的连续性。这个项目更广泛的影响包括培养一名研究生，他将负责分析样本。该项目将支持加强与日本研究人员的国际合作。这些数据还将为研究南开俯冲过程的更大科学界做出重要贡献。南开是一个边缘地区。该项目也具有重要的社会意义，因为南开研究的一个方面是大地震和海啸的产生。

This projext funds the PIs propose retrieve four Chemical and Aqueous Transport (CAT) apparatuses that were deployed in May 2006 in conjunction with a JAMSTEC Shinkai 6500 dive program in the Kumano basin. The objective is to monitor fluid seeps from out-of-sequence thrusts (OOSTs) near the NANTROSEIZE drilling area (SW Japan), and the frontal thrust region. The instruments were originally deployed with funding from an ODP SGER grant, which was essential to take advantage of the "free"JAMSTEC ship and submersible time.This work is intended as a pilot study that will allow the PIs to begin to understand how the seeps in the Nankai region behave and what opportunities and problems may arise as they plan for future work in this region. A Japanese Shinkai 6500 dive proposal has been approved for dives in 2007. This work will allow the PIs to do the analysis of the data in order to determine the basic activity and chemistry of the seeps in this region and redeploy new instruments to maintain observation continuity.The broader impacts of this project include the training of a graduate student, who will have responsibility for analysis of the samples. The project will support increased international collaboration with Japanese researchers. The data will also provide a signification contribution to the greater science community studying subduction processes at Nankai, a MARGINS focus site. The project has significant societal relevance as well, since one of the aspects of the Nankai research is the generation of large earthquakes and tsunamis.