Constraining the Magmatic Budget of the EPR at 9-N Using Broadband Marine MT

使用宽带海洋 MT 将 EPR 的岩浆预算限制在 9-N

• 批准号: 0241597
• 负责人: Steven Constable
• 金额: $ 36.83万
• 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: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0241597&HistoricalAwards=false
• 关键词: Constraining; Magmatic; Budget; EPR; Using

This project will conduct a magnetotelluric survey at the Ridge 2000 integrated studies site on the East Pacific Rise near 9 degrees north. Key questions to be addressed are: What is the distribution, vertical extent and volume fraction of melt present in the mid to lower crust? To what extent does hydrothermal circulation play a role in heat removal from the crust? To what extent is melt accumulated at the base of the crust? What, if any, connections exist between the crustal melt accumulations and the region of decompression melting deeper in the mantle?

该项目将在北纬 9 度附近东太平洋隆起的 Ridge 2000 综合研究地点进行大地电磁勘探。 需要解决的关键问题是：中下地壳中熔体的分布、垂直范围和体积分数是多少？ 热液循环在多大程度上对地壳散热发挥作用？ 地壳底部的熔体积累到什么程度？ 地壳熔体堆积与地幔深处的减压熔融区域之间存在什么联系（如果有的话）？