Collaborative Research: Complex Upper Mantle Structure Beneath Northeast US Investigated Through Shear Wave Tomography
Collaborative Research: Complex Upper Mantle Structure Beneath Northeast US Investigated Through Shear Wave Tomography
批准号:
9707189
负责人:
Jeffrey Park
金额:
$5.32万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1997
资助国家:
美国
项目状态:
已结题
起止时间:
1997-08-15 至 1999-07-31
中文摘要
9707189公园这项研究是哥伦比亚大学和耶鲁大学合作的,涉及在美国东北部稳定的克拉通环境中调查不同类型的地幔不均一性。在这个地质古老的地区,强烈的不均一性是意想不到的,因为横向温度梯度--活动构造区的不均一性的主要原因--可能非常弱。走时异常与横波分裂变化相关,因此至少部分非均质性可能是由于地幔组构方向的横向变化所致。这项研究将检验这样一种假设,即“各向异性域”,即与过去的构造活动有关的应变地幔岩石的相干体积,是旅行时非均质性的主要来源。这些数据将来自美国东北部最近高密度的固定和便携式台站记录的地震图,以形成体波旅行时间和横波分裂测量的数据集。***
英文摘要
9707189 Park This research is a collaboration between Columbia University and Yale University involving the investigation of different types of mantle heterogeneity in the stable cratonic environment of the northeastern U.S. The strong heterogeneity in this geologically old region is unexpected since lateral temperature gradients - the main cause of heterogeneity in areas of active tectonics - are probably very subdued. Travel-time anomalies correlate with shear-wave splitting variations, so at least some of the heterogeneity is probably due to lateral changes in the orientation of mantle fabrics. This research will test the hypothesis that "anisotropic domains," coherent volumes of strained mantle rock related to past tectonic activity, are the primary source of traveltime heterogeneity. The data are to come from seismograms recorded by the recent high density of fixed and portable stations in the northeastern U.S. to form a dataset of body wave traveltimes and shear wave splitting measurements. ***
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会议论文
Love-Rayleigh Scattering and Regional Anisotropy in USArray
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批准号:0952281
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项目类别:Continuing Grant
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资助金额:$20.98万
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财政年份:2010
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负责人:Jeffrey Park
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依托单位:
Travel Support for 2006 Workshop on Seismic Anisotropy and Geodynamics of the Lithosphere-Asthenosphere System; Czech Republic
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批准号:0632158
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项目类别:Standard Grant
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资助金额:$1.5万
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财政年份:2006
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负责人:Jeffrey Park
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依托单位:
Collaborative Research: H2O in the Mantle Wedge
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批准号:0208089
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项目类别:Standard Grant
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资助金额:$6.85万
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财政年份:2002
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负责人:Jeffrey Park
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依托单位:
Seismic Investigation of Lithospheric Strain: The Red Sea Rift
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批准号:0313988
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项目类别:Standard Grant
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资助金额:$7.87万
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财政年份:2002
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负责人:Jeffrey Park
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依托单位:
Seismic Investigation of Lithospheric Strain: The Red Sea Rift
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批准号:0208031
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项目类别:Standard Grant
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资助金额:$7.87万
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财政年份:2002
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负责人:Jeffrey Park
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依托单位:
Collaborative Research: Active Tectonics at the Aleutian-Kamchatka Corner -- A Lithospheric Perspective
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批准号:0136191
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项目类别:Standard Grant
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资助金额:$7.64万
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财政年份:2002
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负责人:Jeffrey Park
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依托单位:
Wedge Issues: Seismic Anisotropy, Structural Geology and Upper-Mantle Dynamics in Subduction Zones
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批准号:0106867
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项目类别:Continuing Grant
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资助金额:$22.82万
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财政年份:2001
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负责人:Jeffrey Park
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依托单位:
Technician Support: Supervisor of Computer Facilities
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批准号:9729976
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项目类别:Continuing Grant
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资助金额:$15.0万
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财政年份:1998
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负责人:Jeffrey Park
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依托单位:
Anisotropy and the Structural Geology of the Tectosphere
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批准号:9805206
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项目类别:Standard Grant
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资助金额:$24.81万
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财政年份:1998
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负责人:Jeffrey Park
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依托单位:
Collaborative Research: The Dynamics of Plume-Ridge Interaction
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批准号:9707604
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项目类别:Continuing Grant
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资助金额:$17.02万
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财政年份:1997
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负责人:Jeffrey Park
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依托单位:
Upgrading the Geophysics/Tectonics Computational Facilities at Yale
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批准号:9528484
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项目类别:Standard Grant
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资助金额:$10.96万
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财政年份:1996
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负责人:Jeffrey Park
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依托单位:
Seismic Anisotropy and Mantle Flow From Long Period Surface Waves
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批准号:9507990
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项目类别:Continuing Grant
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资助金额:$26.01万
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财政年份:1995
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负责人:Jeffrey Park
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依托单位:
Studies of Mantle Anisotropy with Long-Period Seismology
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批准号:9219367
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项目类别:Continuing Grant
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资助金额:$13.0万
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财政年份:1993
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负责人:Jeffrey Park
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依托单位:
Modeling Rough and Anisotropic Upper Mantle Structure Using Long-Period Seismograms
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批准号:9018215
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项目类别:Continuing Grant
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资助金额:$12.27万
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财政年份:1991
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负责人:Jeffrey Park
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依托单位:
Upgrading the seismology/geodynamic computational facilitiesat Yale
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批准号:9018442
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项目类别:Standard Grant
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资助金额:$3.82万
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财政年份:1991
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负责人:Jeffrey Park
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依托单位:
The Investigation of Upper Mantle Lateral Structure and Low Frequency Earthquake Source Mechanisms Using Coupled Free Oscillations
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批准号:8617935
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项目类别:Standard Grant
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资助金额:$5.0万
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财政年份:1987
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负责人:Jeffrey Park
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依托单位:
Presidential Young Investigator: Seismology
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批准号:8657206
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项目类别:Continuing Grant
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资助金额:$15.75万
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财政年份:1987
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负责人:Jeffrey Park
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依托单位:
国内基金
海外基金
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