Eruptive History of the Western Volcanic Zone, Iceland

冰岛西部火山带的喷发历史

• 批准号: 9811276
• 负责人: John Sinton
• 金额: $ 13.72万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9811276&HistoricalAwards=false
• 关键词: Eruptive; History; Western; Volcanic; Zone

P.I.: Sinton Proposal Number: 98-11276 Institution: University of Hawaii Title: Eruptive history of the Western Volcanic Zone, Iceland The objective of this work is to determine the eruptive history of ~170 km of Mid-Atlantic Ridge exposed in the Western Volcanic Zone of Iceland by mapping of lava flows, determining their eruptive volumes and other characteristics including chemical composition. Detailed study of the products of single eruptions will determine the physical nature of eruptive vents, lava flow morphologies, fissure lengths, and eruptive volumes, as well as the chemical variations associated with these features. The combined data for all eruptions within the Western Volcanic Zone will constitute an unprecedented composite of the frequency, volumes, chemical variability and spatial distribution of volcanic eruptions occurring along a significant portion of mid-ocean ridge. The results will be used to infer the nature, size, and processes occurring in subvolcanic magma reservoirs for this slow spreading but high magma supply mid- ocean ridge.

P.I。：Sinton提案编号：98-11276机构：夏威夷大学标题：西部火山区的爆发历史，冰岛这项工作的目的是确定〜170 km中大西洋山脊的爆发历史，该山脊暴露于西方火山区域中的冰岛西部火山区域中，通过绘制了紫红色流的西方火山，确定了它们的破坏性效应，包括化学效率和其他化学特征。 对单次喷发产物的详细研究将确定喷发通风口，熔岩流形态，裂缝长度和喷发量的物理性质，以及与这些特征相关的化学变化。 西部火山区域内所有喷发的组合数据将构成前所未有的综合频率，体积，化学变异性和空间分布的火山喷发的空间分布。 结果将用于推断在亚volcanic岩浆储层中发生的性质，大小和过程，以缓慢扩散但高岩浆供应中山脊。