Rapid Response to Gorda Ridge Diking/Eruptive Event: Intense Water Column (plume) and Seafloor Camera Surveys

对戈达岭堤坝/喷发事件的快速响应：强烈水柱（羽流）和海底相机调查

• 批准号: 9634637
• 负责人: James Cowen
• 金额: $ 5.52万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634637&HistoricalAwards=false
• 关键词: Rapid; Response; Gorda; Ridge; Diking

9634637 Cowen This project is a rapid response to a hydrothermal/volcanic event on the Gorda Ridge in the northeast Pacific. On Feb. 1996 a major seismic event was detected by the NOAA VENTS program through monitoring of the US Navy SOSUS hydrophone arrays. NOAA dispatched the research vessel MacArthur and they discovered a hydrothermal megaplume in the area of the seismic activity. The availability of the research vessel Wecoma in early April allows a more detailed response. The objectives of this cruise are to locate the source of the magaplume, to determine whether there has been a subsurface bacterial bloom, to determine geochemical and microbial concentrations in the plume, and if possible, to establish patterns of crustal breakage and/or eruption.

9634637 Cowen 该项目是对东北太平洋戈尔达海脊热液/火山事件的快速响应。 1996 年 2 月，NOAA VENTS 计划通过监测美国海军 SOSUS 水听器阵列检测到一次重大地震事件。 美国国家海洋和大气管理局派遣了麦克阿瑟号研究船，他们在地震活动区域发现了热液巨型羽流。 Wecoma 号研究船于四月初投入使用，可以提供更详细的回应。 这次巡航的目的是确定磁羽流的来源，确定地表下是否存在细菌繁殖，确定羽流中的地球化学和微生物浓度，并在可能的情况下建立地壳破裂和/或喷发的模式。