Seismic Signatures of Segmentation Processes Along the Mid- Atlantic Ridge
Seismic Signatures of Segmentation Processes Along the Mid- Atlantic Ridge
批准号:
9019683
负责人:
G. Michael Purdy
金额:
$68.81万
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 1994-07-31
中文摘要
该项目将部署14个三分量海底地震仪阵列,在大西洋中脊北部的两个地点记录为期约8周的地震。目标是:(1)确定中谷内地震的震源位置;(2)开展定位地震的震源机制研究;(3)反演P、S波走时和衰减差;(4)明确地震位置与震源特征、构造非均质性与段长、谷中宽度、轴向地形起伏和地幔布格异常的关系。
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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The LDEO Deep-Sea Sample Repository and the Curating and Maintenance of the Sediment Library and Dredge Collection
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批准号:0751761
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项目类别:Continuing Grant
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资助金额:$51.5万
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财政年份:2008
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负责人:G. Michael Purdy
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依托单位:
Replacement of the R/V Maurice Ewing by a Commercial 3D Seismic Vessel
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批准号:0407354
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项目类别:Cooperative Agreement
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资助金额:$0.0万
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财政年份:2004
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负责人:G. Michael Purdy
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依托单位:
An OBS Capable of One Year Deployments
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批准号:9217673
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项目类别:Standard Grant
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资助金额:$10.85万
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财政年份:1992
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负责人:G. Michael Purdy
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依托单位:
New Recording Systems for WHOI Ocean Bottom Hydrophones
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批准号:9019918
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项目类别:Standard Grant
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资助金额:$11.0万
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财政年份:1991
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负责人:G. Michael Purdy
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依托单位:
Computing Resources for Ocean-Bottom Seismology
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批准号:9101280
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项目类别:Standard Grant
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资助金额:$2.5万
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财政年份:1991
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负责人:G. Michael Purdy
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依托单位:
The Shallow Structure of the East Pacific Rise near Latitude9 Degrees 30' North
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批准号:8917750
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项目类别:Continuing Grant
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资助金额:$49.91万
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财政年份:1990
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负责人:G. Michael Purdy
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依托单位:
Seismic Tomography: The Three Dimensional Structure of the East Pacific Rise
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批准号:9000458
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项目类别:Continuing Grant
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资助金额:$7.5万
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财政年份:1990
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负责人:G. Michael Purdy
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依托单位:
A SEAMARC II Investigation of the Mid-Atlantic Ridge Between 24'N - 29'N
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批准号:8709615
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项目类别:Continuing Grant
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资助金额:$19.92万
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财政年份:1988
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负责人:G. Michael Purdy
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依托单位:
A Deep-Towed Explosive Source for Seismic Experiments on theOcean Floor
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批准号:8700806
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项目类别:Continuing Grant
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资助金额:$24.19万
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财政年份:1987
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负责人:G. Michael Purdy
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依托单位:
An Experiment in Seismic Tomography: The Three-Dimensional Structure of the East Pacific Rise
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批准号:8615797
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项目类别:Continuing Grant
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资助金额:$44.9万
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财政年份:1987
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负责人:G. Michael Purdy
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依托单位:
COLLABORATIVE RESEARCH: A Microearthquake Study of the Central Transform Region of the Kane Fracture Zone
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批准号:8517137
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项目类别:Continuing Grant
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资助金额:$10.0万
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财政年份:1986
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负责人:G. Michael Purdy
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依托单位:
A Microearthquake Study in the Tag Hydrothermal Field at 26'N Mid Atlantic Ridge
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批准号:8509193
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项目类别:Standard Grant
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资助金额:$4.5万
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财政年份:1986
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负责人:G. Michael Purdy
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依托单位:
Equipment Grant: Digital Ocean Bottom Hydrophone System for Marine Seismology
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批准号:8408055
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项目类别:Standard Grant
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资助金额:$15.75万
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财政年份:1985
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负责人:G. Michael Purdy
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依托单位:
Geological Structure of the Upper Oceanic Crust: Seismic Amplitude Analysis
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批准号:8401659
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项目类别:Standard Grant
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资助金额:$5.41万
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财政年份:1984
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负责人:G. Michael Purdy
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依托单位:
A Microearthquake Study in the TAG Hydrothermal Field at 26'N, Mid-Atlantic Ridge
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批准号:8407798
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项目类别:Standard Grant
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资助金额:$9.38万
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财政年份:1984
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负责人:G. Michael Purdy
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依托单位:
Seismic Experiments With a Digital Ocean Bottom Hydrophone
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批准号:8315590
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项目类别:Standard Grant
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资助金额:$3.79万
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财政年份:1984
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负责人:G. Michael Purdy
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依托单位:
Equipment Grant: Disk Drive For Seismic Research program
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批准号:8218927
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项目类别:Standard Grant
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资助金额:$2.9万
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财政年份:1983
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负责人:G. Michael Purdy
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依托单位:
Collaborative Research: a Microearthquake Survey on the Mid-Atlantic Ridge
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批准号:8218357
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项目类别:Standard Grant
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资助金额:$4.05万
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财政年份:1983
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负责人:G. Michael Purdy
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依托单位:
Collaborative Research: a Microearthquake Survey on the Mid-Atlantic Ridge
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批准号:8018805
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项目类别:Standard Grant
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资助金额:$3.79万
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财政年份:1981
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负责人:G. Michael Purdy
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依托单位:
Seismic Investigations of the Kane Fracture Zone and the Adjacent Oceanic Crust
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批准号:8025206
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项目类别:Continuing Grant
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资助金额:$40.06万
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财政年份:1981
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负责人:G. Michael Purdy
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依托单位:
海外基金