Collaborative Research: Scientific Drilling in Hawaii: Physics and Chemistry of Plume Lithosphere Interactions

该合同为与一个项目有关的钻探前活动提供支持，该项目的最终目标是获得大洋火山在其主要建造盾牌活动阶段的长时间间隔内的产出的几乎连续、有序的记录。任何一座夏威夷火山的产出和历史只有一小部分可以通过地表暴露获得，除非通过深钻，否则这些火山的内部不太可能暴露出来。要解决的主要科学问题涉及热点的性质，特别是它们可能代表的“羽流”的组成和来源，以及上升物质如何在105至106年的时间尺度上与岩石圈相互作用。该合同支持的具体活动包括：1)最终确定选址和评估许可问题；2)最终确定建议的井深，并提供详细的理由；3)如有必要，审查和修改钻井计划和井下测量计划，以确保根据科学目标需要记录建议的井；4)确定完整的科学团队的组成。

This award provides support for pre-drilling activities connected with a project whose ultimate objective is to obtain a nearly continuous, ordered record of the output of an oceanic volcano over a long interval of its main shield-building phase of activity. Only small fractions of the output and history of any individual Hawaiian volcano are accessible through surface exposures and it is unlikely that the interiors of these volcanoes will ever be exposed except by deep drilling. The primary scientific questions to be addressed concern the nature of hot spots, in particular, the composition and origin of the "plumes" they may represent, and how the upwelling material interacts with the lithosphere on time scales of 105 to 106 years. The specific activities being supported by this award include: 1) finalizing the site selection and evaluating permitting issues; 2) finalizing, with detailed justification, the proposed hole depth; 3) reviewing and modifying, if necessary, the drilling plan and downhole measurements plan to insure that the proposed hole can be logged as necessary for the scientific objectives; and 4) determining the makeup of the complete science team.