Subduction Factory Studies in the Southern Mariana Convergent Margin: Side-Scan, Geophysical and Petrologic Investigations

南马里亚纳辐合边缘的俯冲工厂研究：侧扫描、地球物理和岩石学调查

• 批准号: 9907063
• 负责人: Patricia Fryer
• 金额: $ 38.57万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2007-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9907063&HistoricalAwards=false
• 关键词: Subduction; Factory; Studies; Southern; Mariana

The PIs will undertake a field program of HMR-1 sonar mapping, magnetics, gravity measurements, and dredging in the Mariana arc region to enlarge the existing database in area. The mapping is justified as a necessary first step toward sorting out the complex nature and sequence of subduction-related processes and critical to the goals of the Subduction Factory initiative within MARGINS program. The survey will be conducted in two regions of the southern Mariana subduction system - in the forearc and the backarc. The work will complete and complement similar geophysical data (side scan sonar, magnetics) already obtained from the arc. The samples collected by dredging will be used for geochemical analyses by other workers.

PI将进行HMR-1声纳测绘、磁力学、重力测量和马里亚纳岛弧地区疏浚的实地项目，以扩大该地区现有的数据库。测绘是必要的第一步，以整理出的复杂性质和序列的俯冲相关的过程和关键的目标的俯冲工厂倡议内的MARGINS计划。该调查将在南马里亚纳俯冲系统的两个区域进行--前弧和后弧。这项工作将完成和补充已经从弧中获得的类似地球物理数据（侧扫声纳、磁力）。通过疏浚收集的样品将由其他工作人员用于地球化学分析。