A Pilot Multichannel Seismic Investigation of Crustal Structure Beneath the Slow Spreading Mid-Atlantic Ridge
A Pilot Multichannel Seismic Investigation of Crustal Structure Beneath the Slow Spreading Mid-Atlantic Ridge
批准号:
9401717
负责人:
Robert Detrick
金额:
$19.5万
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:
1996-09-01 至 1999-08-31
中文摘要
OCE-9401717 大洋地壳的地质结构通常是从海洋地球物理研究中推断出来的。 多道地震技术已成功地用于研究海底相对平坦的快速扩张中心和海底被厚沉积物覆盖的地区的地壳结构。 粗糙的海底地形和大的地震速度梯度通常出现在缓慢扩张的中心,如大西洋中脊,限制了确定这些地区地壳结构的研究的成功。 至少在理论上,已经开发了地震处理技术来解决这些问题。 如果提案中描述的处理技术取得成功,应该有可能解决缓慢和中间扩张脊的许多基本地质问题。
英文摘要
OCE-9401717 The geological structure of the oceanic crust is typically inferred from marine geophysical studies. Multichannel seismic techniques have been used with great success to study the crustal structure at fast spreading centers where the seafloor is relatively flat and in locations where the seafloor is covered by thick sediments. The rough seafloor topography and large seismic velocity gradients typically found at slow spreading centers such as the Mid-Atlantic Ridge have limited the success of studies to determine crustal structure in these regions. Seismic processing techniques have been developed, at least in theory, to address these problems. If the processing techniques described in the proposal are successful, it should be possible to address a host of fundamental geological problems at slow and intermediate spreading ridges.
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Collaborative Research: EarthScope Facility Operation and Maintenance (FY2008-FY2013) (USArray)
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Collaborative Research: Multi-Institution Testbed for Scalable Digital Archiving
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资助金额:$0.0万
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Collaborative Research: SGER - Pilot Study of Vestmannaeyjar Using High-Resolution Seismic Reflection
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批准号:0329590
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财政年份:2003
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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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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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依托单位:
Development and Testing of a Deep-Water, Acoustically-Linked, Moored-Buoy Seafloor Observatory
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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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资助金额:$37.39万
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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:
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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资助金额:$8.37万
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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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财政年份:2000
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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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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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财政年份:1999
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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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财政年份:1997
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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 Seismic Tomography Study of Mantle Bouguer Anomalies and Crustal Thickness Variations at the Mid-Atlantic Ridge
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批准号:9300450
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项目类别:Continuing Grant
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资助金额:$109.01万
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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:
海外基金