Collaborative Research: The Samoan Hotspot, Past and Present

根据最近对萨摩亚东部省份的详细研究和对西部省份的关键侦察，PIs将进行为期20天的疏通巡航，以阐明和测试现有（夏威夷）热点链模型的普遍性。pi将沿着1040公里的链条挖掘15座火山大楼，以阐明年龄进展模型，扩展和填补铅同位素相关性，探索在许多火山中发现的全球极端富集Sr同位素特征的极限，并绘制和表征将萨摩亚火山联系在一起的阶梯状轮廓。此外，根据该奖项，pi将开展一些涉及萨摩亚学童的教育和推广计划，并为地球在其悠久的历史中如何分化的想法做出贡献。

Based on recent detailed studies of the eastern Samoan province, and key reconnaissance in the western province, the PIs will undertake 20-day dredging cruise that will illuminate and test the generality of existing (Hawaiian) models for hotspot chains. The PIs will dredge 15 volcanic edifices spaced along 1040 km of the chain, to elucidate the age progression model, to expand and fill in the Pb-isotope correlation, to explore the limits of the globally extreme enriched Sr isotope signature found at many of the volcanoes, and will map and characterize the en echelon lineaments that knit Samoan volcanoes together. In addition, the PIs will, under this award, carry out a number of educational and outreach programs involving school children in Samoa and contribute to ideas of how the earth has differentiated over its long history.