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

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
项目状态：
已结题
起止时间：
2003-08-01 至 2006-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0241597&HistoricalAwards=false
关键词：
ConstrainingMagmaticBudgetEPRUsing

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中文摘要
翻译
该项目将在东太平洋隆起北纬9度附近的Ridge 2000综合研究地点进行大地电磁测量。要解决的关键问题是：中下地壳中存在的熔体的分布、垂直范围和体积分数是什么？热液循环在多大程度上对地壳的热量排出起作用？熔体在地壳底部积聚到什么程度？如果有的话，在地壳熔体积累和地幔深处的减压融化区域之间存在什么联系？
英文摘要
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?
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Collaborative Research: NSFGEO-NERC: Magnetotelluric imaging and geodynamical/geochemical investigations of plume-ridge interaction in the Galapagos
Collaborative Research: Magnetotelluric Investigation of the Salton Trough
Collaborative research: A better understanding of seismic hazard in Tehuantepec, Mexico, using amphibious MT studies
NSFGEO-NERC: Quantifying evolution of magmatism and serpentinisation during the onset of seafloor spreading
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