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: 9526241
• 负责人: John Rhodes
• 金额: $ 2万
• 依托单位: University of Massachusetts Amherst
• 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 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526241&HistoricalAwards=false
• 关键词: Collaborative; Research; Mauna; Loa; Submarine

9526241 Rhodes A three-year 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. ***

9526241罗兹计划用三年时间收集和研究夏威夷莫纳罗亚火山西南裂谷带的岩石。该地区的许多岩石是苦苦岩，深喷发可能是由于在管道系统深处聚集了致密的岩浆而对岩浆进行密度过滤的结果。另一种选择是，暴露在拟议的塌陷面上的熔岩比地下熔岩更古老，因此显示出熔岩化学的时间变化。这些熔岩特别有趣，因为它们是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许多关于地幔如何熔化以及熔体如何运往地表的信息。***