Dynamics of Mid-Ocean Ridge Hydrothermal Systems: A Time-Series Pilot Study of Earthquake Activity, Venting, andPlume Variability

这是一个支持六周时间序列的项目 海底地震活动性测量计划， 高低温通风口数量。 器械将 部署在胡安·德富卡海脊的奋进段; ALVIN将用于安置和回收。 部署 将由海底地震仪阵列组成， 由加州大学戴维斯分校的J.麦克莱恩在一份声明中向大学 华盛顿，传统的热电偶阵列，和仪表 水柱系泊，包括标准旋转流速计。 此外，“创新”的仪器，如延时视频 摄像头和电磁流量计。 的 希望能得到一个记录， 从喷口流出的液体， 观测到的地震活动这项工作被视为一个优秀的 有机会部署和测试一些新型仪器， 监测热液喷口。 该项目是RIDGE的一部分 全球地球科学倡议的一个组成部分。如果成功， 这项工作将是一个重要的步骤， 洋脊热液输出时间变化 并可能导致长期的重大进展 监测脊顶热液活动。

This is a project to support a six week time-series measurement program of sea floor seismicity, and monitoring of a number of high and low temperature vents. The instruments will be deployed on the Endeavor Segment of the Juan de Fuca Ridge; ALVIN will be used for emplacement and recovery. The deployment will consist of an array of ocean bottom seismometers, operated by J. McClain of UC, Davis under a subcontract to the University of Washington, conventional thermocouple arrays, and instrumented water column moorings involving standard rotary current meters. In addition "innovative" instruments such as a time-lapse video camera, and an electromagnetic flow meter will be emplaced. The hope is to obtain a record of temporal variations in thermal and fluid output from the vents and that can be correlated with observed seismicity. This work is seen as an excellent opportunity to deploy and test some new types of instruments for monitoring hydrothermal vents. The project is part of the RIDGE Initiative, a component of Global Geosciences. If successful, this work would be an important step toward characterizing temporal variability in hydrothermal output from an ocean ridge vent field and could lead to significant advances in long term monitoring of ridge crest hydrothermal activity.