Collaborative Research: The Samoan Hotspot, Past and Present

根据最近对东部萨摩亚省的详细研究和西部省的关键侦察，PIS将进行为期20天的疏浚巡航，这将阐明和测试现有(夏威夷)热点链模型的普遍性。PIS将挖掘沿1040公里长的链分布的15个火山建筑物，以阐明年龄演化模型，扩大和填补铅同位素对比，探索在许多火山发现的全球极端富集锶同位素特征的界限，并将绘制和描述将萨摩亚火山编织在一起的梯队线型。此外，根据这一奖项，私人投资机构将开展一系列涉及萨摩亚学童的教育和外联方案，并促进了解地球在其悠久历史中是如何区分的。

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.