Seismic Study of the Lau Back-Arc Spreading Center and Tonga Island Arc Using Ocean Bottom Seismographs

利用海底地震仪对劳弧后传播中心和汤加岛弧进行地震研究

• 批准号: 9314446
• 负责人: Douglas Wiens
• 金额: $ 14.8万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314446&HistoricalAwards=false
• 关键词: Seismic; Study; Lau; Back; Arc; Seismic; Study; Lau; Back; Arc

9314446 Wiens This project will deploy a set of Ocean Bottom Seismometers across the Lau Basin and Tonge Trench, to complement an already-funded land-based array. The goal is to use seismic velocities to interpret the structure of the mantle wedge and subducting slab, and thereby to determine evidence for phase changes in the slab, and sources of arc back-arc magmas.

9314446 Wiens这个项目将在Lau Basin和Tonge Trench上部署一组海底地震米，以补充已经资助的土地阵列。目的是使用地震速度来解释地幔楔形和俯冲板的结构，从而确定平板中相变的相变的证据，以及ARC背面的岩浆的来源。