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Seismic Signatures of Segmentation Processes Along the Mid- Atlantic Ridge

Seismic Signatures of Segmentation Processes Along the Mid- Atlantic Ridge
大西洋中脊沿线分割过程的地震特征
批准号：
9019717
负责人：
Marcia McNutt
金额：
$0.0万
依托单位：
Massachusetts Institute of Technology
依托单位国家：
美国
项目类别：
Continuing grant
财政年份：
1992
资助国家：
美国
项目状态：
已结题
起止时间：
1992-02-15 至 1995-01-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019717&HistoricalAwards=false
关键词：
SeismicSignaturesSegmentationProcessesAlong

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中文摘要
翻译
该项目将部署一个由14个三分量海底地震仪组成的阵列，在大西洋中脊北部的两个地点记录为期约8周的地震。其目的是：(1)定位中谷内的地震震源；(2)研究所定位地震的震源机制；(3)反演P波和S波的传播时间和衰减差异；(4)确定地震位置和震源特征之间的关系，以及构造非均质性与节段长度、中谷宽度、轴向地形起伏和地幔布格异常之间的关系。
英文摘要
This project will deploy an array of 14 three-component ocean- bottom seismometers to record earthquakes for a period of about eight weeks at two sites along the northern Mid-Atlantic Ridge. The objectives are to: (1) locate the hypocenters of earthquakes within the median valley; (2) conduct source mechanism studies of located earthquakes; (3) invert P and S wave travel time and attenuation differences; and (4) define the relationships among earthquakes locations and source characteristics, and structural heterogeneity to segment length, median valley width, axial topographic relief and mantle Bouguer anomaly.
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