Oceanic Crustal Structure of the NE Hawaiian Arch

这项提议旨在对夏威夷拱门进行地球物理勘测，以确定国际莫霍面钻探项目的三个候选地点之一的地壳和地幔边界(MOHO)结构。该项目是与日本科学资助机构JAMSTEC合作完成的。这个项目的几乎所有资金都来自JAMSTEC。皮？S号正在为一次探险寻找时间和资金，以找回项目开始时部署的海底地震仪。特别令人感兴趣的是，是否有证据表明与附近夏威夷群岛热点有关的岩浆已被注入感兴趣的区域。如果是这样的话，这将不是一个适合钻探的地点。更普遍的科学兴趣将是为成熟的快速扩散的洋壳建立的参考部分，以及与夏威夷火山加载有关的地壳翘曲的特征。地震数据将被立即提供给学术地震门户网站，并因此提供给任何希望进一步解释或处理数据的调查人员。研究生既从事船舶工作，又从事数据分析。这是美国(以最低的成本)对一个高度可见的大型国际项目的贡献。

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.