上地幔地震波速度结构图像的时效性——以中国东部为例
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- 论文作者：王欣欣 ; 赵亮 ; 杨建锋 ; 王坤
- 年：2016
- 作者机构：中国科学院地质与地球物理研究所;
- 会议召开时间：2016-10-15
- 会议录名称：2016中国地球科学联合学术年会论文集（五）——专题10：深部地幔物质成分与结构探测、专题11：花岗岩成因与大陆地壳演化
- 语种：中文
- 分类号：P315.2
- 学会代码：ZGDW
- 会议名称：2016中国地球科学联合学术年会
- 会议地点：中国北京
- 主办单位：中国地球物理学会、中国地震学会、全国岩石学与地球动力学研讨会组委会、中国地质学会构造地质学与地球动力学专业委员会、中国地质学会区域地质与成矿专业委员会
- 学会名称：中国地球物理学会
- 页数：2
- 文件大小：877k
- 原文格式：D
- 会议级别：全国
摘要
<正>地震波速度是认识地球深部过程的重要参数。利用地震学获得的速度结构图像讨论地球演化过程,首先需要回答地震波速度图像代表哪个时期构造事件的影响?这是地震波速度结构图像的时效性问题。本文立足于岩石物理实验依据(Vacher等,1996;Goes等,2000;Schmandt和Humphreys,2010),利用温度和速度相互转化关系(Goes等,2000;Cammarano等,2003;Shapiro等,2004;van Wijk等,2008),通过地球动力学数值方法模拟高温异常体的温度场同化效应,来探讨中国东部上地
引文
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Shapiro N M,Ritzwoller M H.2004.Thermodynamic constraints on seismic inversions.Geophys J Int,157:1175-1188
Schmandt B,Humphreys E.2010.Complex subduction and small-scale convection revealed by body-wave tomography of the western United States upper mantle.Earth Planet Sci Lett,297:435-445
Vacher P,Mocquet A,Sotin C.1996.Comparison between tomographic structures and models of convection in the upper mantle.Geophys J Int,124:45-56
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Zhao L,Allen R M,Zheng T Y,Zhu R X.2012.High-resolution body-wave tomography models of the upper mantle beneath eastern China and the adjacent areas.Geochem Geophys Geosyst,13:56-59
Cammarano F,Goes S,Vacher P,Giardini D.2003.Inferring upper-mantle temperatures from seismic velocity.Phys Earth Planet Inter,138,197-222
Goes S,Govers R,Vacher P.2000.Shallow mantle temperatures under Europe from P and S wave tomography.JGeophys Res,105:11153-11169
Marques F O,Kaus B J P.2015.Speculations on the impact of catastrophic subduction initiation on the Earth System.JGeodyn,93:1-16
Shapiro N M,Ritzwoller M H.2004.Thermodynamic constraints on seismic inversions.Geophys J Int,157:1175-1188
Schmandt B,Humphreys E.2010.Complex subduction and small-scale convection revealed by body-wave tomography of the western United States upper mantle.Earth Planet Sci Lett,297:435-445
Vacher P,Mocquet A,Sotin C.1996.Comparison between tomographic structures and models of convection in the upper mantle.Geophys J Int,124:45-56
Van Wijk J,van Hunen J,Goes S.2008.Small-scale convection during continental rifting:Evidence from the Rio Grande rift.Geology,36:575-578
Zhao L,Allen R M,Zheng T Y,Zhu R X.2012.High-resolution body-wave tomography models of the upper mantle beneath eastern China and the adjacent areas.Geochem Geophys Geosyst,13:56-59