Electrical Conductivity of MORB-Generating Partial Melts

MORB 生成部分熔体的电导率

• 批准号: 9419366
• 负责人: Harve Waff
• 金额: $ 15万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9419366&HistoricalAwards=false
• 关键词: Electrical; Conductivity; MORB; Generating; Partial

9419366 Waff Electrical conductivity will be measured on mixtures of basalt and loivine (simulating partially molten upper mantle) that have been heated at mantle pressures for several hundred hours. Conductivity of the bulk sample (basalt plus olivine mixtures) increases dramatically when melting occurs. The bulk sample conductivity is related principally to how melt is distributed in the sample and how much melt is present. These measurements are important for understanding the distribution and amount of melt present in the mantle near mid-ocean ridges.

小行星9419366 电导率将在玄武岩和洛伊文（模拟部分熔融的上地幔）的混合物上测量，这些混合物已在地幔压力下加热了数百小时。当熔融发生时，大块样品（玄武岩加橄榄石混合物）的电导率急剧增加。整体样品电导率主要与熔体在样品中的分布方式以及存在的熔体量有关。这些测量对于了解洋中脊附近地幔中存在的熔融物的分布和数量非常重要。