Oceanic Crustal Structure of the NE Hawaiian Arch

夏威夷东北拱门的海洋地壳结构

• 批准号: 1355468
• 负责人: Gregory Moore
• 金额: $ 7.12万
• 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: 2013
• 资助国家: 美国
• 起止时间: 2013-12-15 至 2017-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1355468&HistoricalAwards=false
• 关键词: Oceanic; Crustal; Structure; NE; Hawaiian

This proposal seeks to conduct a geophysical survey of the Hawaiian arch to characterize crust and mantle-mantle boundary (Moho) structure for one of three (and, by most accounts, the leading) candidate sites for the international Moho drilling project. This project is a collaboration with JAMSTEC, the Japanese cience funding agency. Almost all funding for this project is coming from JAMSTEC. The PI?s are seeking ship time and funding for an expedition to recover ocean bottom seismometers deployed at the beginning of the project. Of special interest is whether or not there is evidence for magmas related to the nearby Hawaiian Islands hot spot having been injected into the region of interest. If so, this will be an unsuitable site for drilling. Of more general scientific interest will be the reference section established for mature fast-spread ocean crust and characterization of crustal warping related to loading by the Hawaiian Volcanos. The seismic data will be immediately provided the data to the Academic Seismic Portal and, hence, to any investigator who wishes to further interpret or process the data. Graduate students are involved in both shipboard work and data analysis. This is a US contribution (at very moidest cost) to a large, highly visible international project.

该提案旨在对夏威夷拱门进行地球物理调查，以表征三个国际Moho钻探项目的三个（以及大多数情况下，是领先的）候选候选地点之一的地壳和地幔边界（Moho）结构。该项目是与日本CIENCE资助机构Jamstec的合作。该项目的几乎所有资金都来自Jamstec。 PI正在寻求船舶时间和资金来探险，以恢复项目开始时部署的海洋底部地震仪。特别感兴趣的是，是否有证据表明与附近的夏威夷群岛热点相关的岩浆被注入了感兴趣的地区。如果是这样，这将是不合适的钻井场所。具有更普遍的科学兴趣将是为成熟的快速海壳和夏威夷火山载荷相关的地壳翘曲的特征而建立的参考部分。地震数据将立即提供给学术地震门户的数据，并向任何希望进一步解释或处理数据的研究者。研究生参与船上工作和数据分析。这是美国对一个庞大的，高度可见的国际项目的贡献（价格最高）。