A Seismic Tomography Study of Mantle Bouguer Anomalies and Crustal Thickness Variations at the Mid-Atlantic Ridge
A Seismic Tomography Study of Mantle Bouguer Anomalies and Crustal Thickness Variations at the Mid-Atlantic Ridge
批准号:
9300450
负责人:
Robert Detrick
金额:
$109.01万
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
项目状态:
已结题
起止时间:
1996-10-15 至 2002-03-31
中文摘要
大洋中脊岩芯吸积的新模型认为,这一过程主要是由海脊轴线下地幔流动的性质以及沿海脊段形成的岩石圈的不同热和力学性质驱动的。这些模型对地壳厚度沿轴线和具有不同重力特征的区段之间的变化进行了具体预测。这项研究的目的是通过在三个不同程度的岩浆作用和岩浆伸展特征的扩张段进行一系列地震折射实验来验证这些预测。
英文摘要
New models of lithosperic accretion at mid-ocean ridges views the process as driven primarily by the nature of mantle flow beneath the ridge axis and the variable thermal and mechanical properties of the lithosphere forming along the ridge segment. These models make specific predictions about how crustal thickness should vary along-axis and between segments with different gravity signatures. The goal of this study is to test these predictions using a series of seismic refraction experiments at three spreading segments characterized by different amounts of magmatism and amagmatic extension.
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Subduction Zone Observatories Workshop
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批准号:1636548
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A Community-Based OBSIP Management Office
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批准号:1112722
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负责人:Robert Detrick
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Facilitating New Discoveries in Seismology and Exploring the Earth: The Next Decade
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批准号:1063471
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项目类别:Cooperative Agreement
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资助金额:$2951.2万
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MRI: Acquisition for Integrating Global Reporting Geophysical Observatories within the Chilean National Seismic Network (GRGOC)
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资助金额:$100.0万
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依托单位:
Collaborative Research: EarthScope Facility Operation and Maintenance (FY2008-FY2013) (USArray)
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批准号:0733069
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Collaborative Research: Multi-Institution Testbed for Scalable Digital Archiving
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批准号:0455651
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依托单位:
Collaborative Research: SGER - Pilot Study of Vestmannaeyjar Using High-Resolution Seismic Reflection
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批准号:0329590
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资助金额:$5.67万
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财政年份:2003
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负责人:Robert Detrick
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依托单位:
An Oceanic Mantle Dynamics Workshop, to be held September 18-20, 2002, in Snowbird, Utah
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批准号:0227508
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项目类别:Standard Grant
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资助金额:$11.5万
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财政年份:2002
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负责人:Robert Detrick
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依托单位:
Ship Operations
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批准号:0201692
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资助金额:$1300.0万
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Development and Testing of a Deep-Water, Acoustically-Linked, Moored-Buoy Seafloor Observatory
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负责人:Robert Detrick
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依托单位:
Collaorative Research: A MCS Investigation to Study Axial Crustal Structure and Alteration of the Upper Crust at the Juan de Fuca Spreading Center
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批准号:0002551
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项目类别:Continuing Grant
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资助金额:$37.39万
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负责人:Robert Detrick
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依托单位:
Pilot Study of the Tjornes Fracture Zone on Northern Iceland's Insular Margin Using High-Resolution, Multibeam Bathymetry, Seismic Reflection and Side-Scan Sonar
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批准号:0114357
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项目类别:Standard Grant
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资助金额:$8.37万
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财政年份:2001
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负责人:Robert Detrick
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依托单位:
Group Proposal: A Seismic Investigation of the Effects of Plume-Ridge Interaction: The Galapagos Spreading Center, 91 degrees W to 98 degrees W
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批准号:9819117
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项目类别:Continuing Grant
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资助金额:$61.27万
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负责人:Robert Detrick
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依托单位:
Establishment of an Ocean Bottom Seismic Instrumentation Pool in Woods Hole for the Marine Geosciences Community
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批准号:9907515
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资助金额:$20.17万
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负责人:Robert Detrick
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依托单位:
Seismic Attenuation Structure and the Fine-Scale Structure of a Seismic Zone at the Mid-Atlantic Ridge, 35 degrees N
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批准号:9907170
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项目类别:Standard Grant
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资助金额:$6.11万
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负责人:Robert Detrick
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依托单位:
Collaborative Research: Mapping Melt and Matrix Flow in the Uppermost Mantle: Undershooting the East Pacific Rise between Siquieros and Clipperton
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批准号:9634132
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项目类别:Continuing Grant
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依托单位:
Deep Structure of a Hotspot Influenced Rifted Volcanic Margin: A Joint U.S.- Danish Seismic Experiment off SE Greenland
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批准号:9416631
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项目类别:Continuing Grant
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资助金额:$79.9万
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财政年份:1996
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负责人:Robert Detrick
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依托单位:
A Pilot Multichannel Seismic Investigation of Crustal Structure Beneath the Slow Spreading Mid-Atlantic Ridge
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批准号:9401717
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项目类别:Continuing Grant
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资助金额:$19.5万
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财政年份:1996
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负责人:Robert Detrick
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依托单位:
ARI: Acquisition of High Capacity On-line Data Storage and Computer Visualization Systems for Improved Access to Deep Submergence, Multibeam Sonar and Marine Seismic Data
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批准号:9512043
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项目类别:Standard Grant
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资助金额:$30.87万
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财政年份:1995
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负责人:Robert Detrick
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依托单位:
The MELT Project - Part A: WHOI Ocean Bottom Seismology Data Acquisition
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批准号:9403697
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项目类别:Continuing Grant
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资助金额:$105.86万
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财政年份:1995
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负责人:Robert Detrick
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依托单位:
国内基金
海外基金
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负责人:许业军
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依托单位:
量子Tomography的理论研究
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依托单位: