A Comparative Multichannel Seismic Investigation into the Structure of Two Polynesian Volcanic Chains: Marquesas and Societies

这是一个涉及两艘船和单船多通道的项目 地震调查的社会和马克萨斯热点链， 太平洋 这是一个与法国合作的项目。 工作将包括广角和扩大传播双船剖面 单舰MCS。 该研究旨在了解 在火山链东南端的零年龄火山活动的性质， 促使西北部火山活动开始的因素 链的末端，以及热点与 马克萨斯断裂带 一个特别的目标是了解 两种不同背景下热点岩石圈相互作用--正常 岩石圈和弱岩石圈。 中板火山作用及其与大洋岩石圈的相互作用 这是一个非常重要的过程， 和海洋盆地的演化。 主动震源地震研究， 因为这份报告将提供重要的详细信息， 火山岩及其周围岩石圈的结构 这是目前所缺乏的。 麦克纳特医生和她的同事 是研究板块中部火山活动的领导者之一， 岩石圈结构以及多道地震。

This is a project involving a two-ship and single ship multichannel seismic survey of the Society and Marquesas hot spot chains in the Pacific ocean. It is a collaborative project with the French. Work will include wide angle and expanding spread two-ship profiles and single ship MCS. The study is aimed at understanding the nature of zero age volcanism at the southeast end of the chains, the factors contributing to the onset of volcanism at the northwest end of the chains, and the relationship of the hot spots to the Marquesas Fracture Zone. A particular objective is to understand hot spotlithospheric interaction in two different setting--normal lithosphere and weak lithosphere. Mid-plate volcanism and its interaction with oceanic lithosphere is a process of fundamental importance in understanding the structure and evolution of ocean basins. Active source seismic studies such as this one will provide important detailed information regarding the structure of the lithosphere beneath and surrounding volcanic loads that is currently lacking. Dr. McNutt and her co-workers are among the leaders in the study of mid-plate volcanism and lithospheric structure, as well as multichannel seismics.