Collaborative Research: Mauna Loa Submarine Picritic Basalts: Implications for Primary Magmas from the Hawaiian Plume

合作研究：冒纳罗亚海底苦味玄武岩：对夏威夷羽流原生岩浆的影响

• 批准号: 9503222
• 负责人: Michael Garcia
• 金额: $ 3.49万
• 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: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9503222&HistoricalAwards=false
• 关键词: Collaborative; Research; Mauna; Loa; Submarine

9503222 Garcia A three-year plan is proposed for the collection and study of rocks from the southwest rift zone of Mauna Loa volcano, Hawaii. Many rocks from this area are picrites and it is possible that the deep eruptions are a result of density filtering of the magmas due to pooling of dense magmas deep within the conduit system. The alternative is that the lavas exposed on the proposed slump surface are older than subaerial lavas and therefore show a temporal variation of chemistry of lavas. These lavas are particularly interesting because they are the most Mg-rich lavas ever found on Hawaii or other similar island and these glasses can tell us much about how the mantle melts and how the melts are transported to the surface. ***

9503222 Garcia提出了一项为期三年的计划，用于收集和研究夏威夷莫纳罗亚火山西南裂谷带的岩石。该地区的许多岩石都是苦橄岩，深部喷发可能是由于管道系统深处的致密岩浆池化导致岩浆密度过滤的结果。另一种可能是，暴露在滑坡表面的熔岩比地面熔岩更古老，因此显示出熔岩化学成分的时间变化。这些熔岩特别有趣，因为它们是在夏威夷或其他类似岛屿上发现的最富镁的熔岩，这些玻璃可以告诉我们很多关于地幔如何融化以及融化物如何被运送到地表的信息。＊＊＊