Collaborative Research: The Samoan Hotspot, Past and Present

合作研究：萨摩亚热点地区的过去和现在

• 批准号: 0351799
• 负责人: Hubertus Staudigel
• 金额: --
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0351799&HistoricalAwards=false
• 关键词: Collaborative; Research; Samoan; Hotspot; Past

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.

根据最近对萨摩亚东部省份的详细研究和西部省份的重点勘察，PI 将进行为期 20 天的疏浚巡航，以阐明和测试现有（夏威夷）热点链模型的通用性。 PI 将疏浚沿 1040 公里的火山链分布的 15 个火山建筑物，以阐明年龄进展模型，扩展和填充铅同位素相关性，探索在许多火山中发现的全球极端富集的锶同位素特征的极限，并将绘制和描述将萨摩亚火山编织在一起的梯队轮廓。此外，PI 将根据该奖项开展一系列涉及萨摩亚学童的教育和外展项目，并为地球在其悠久历史中如何差异化的想法做出贡献。