International Collaborative Research: Evolution of the Hawaiian Plume- Geochemical Studies of Hana Ridge, Haleakala, Hawaii

随着日本海洋科学技术中心(JAMSTEC)ROV Kaiko和潜水器Shinkai 6500的新潜水，在远端Hana Ridge采集到106个新的盾阶段拉斑玄武岩，代表了Haleakala盾构生长的早期阶段。PI参与了这些潜水工作，并在东京工业大学(TiTech)和JAMSTEC与日本的PI项目高桥英一教授合作，为一个试验性的Hana Ridge项目进行地球化学分析。这个为期三年的项目将用于在第一年和第二年对所有回收的火山玻璃(~75-90个样品)、块状岩石电感耦合等离子体质谱(~40-50个样品)和激光烧蚀电感耦合等离子体质谱仪玻璃(~75个样品)进行电子探针主次元素和氯、F、S分析，以及对20-25个样品进行同位素分析。这个项目的第三年将用来综合不同研究小组收集的数据，并将结果写在一起。

New dives with the Japanese Marine Sciences and Technology Center (JAMSTEC) ROV Kaiko and submersible Shinkai 6500 collected 106 new shield-stage tholeiites from the distal Hana Ridge representing early phases of Haleakala shield growth. The PI participated in these dive efforts and spent time at Tokyo Institute of Technology (TITech) and JAMSTEC working with Professor Eiichi Takahashi, the Japanese program PI, on geochemical analyses for a pilot Hana Ridge project. This award for a three year project will be used to carry out electron microprobe major and minor element and Cl, F, and S analyses of all volcanic glasses recovered (~75-90 samples), bulk rock ICP-MS (~40-50 samples) and laser ablation ICP-MS glass analyses (~75 samples) for trace elements, and isotope analyses on 20-25 samples in years 1 & 2. Separate travel funds will be sought from NSF-INT for the period of time to be spent in Japan. Year three of this project will be spent synthesizing the data collected by the various research groups and writing up the results together.