由深源远震体波记录反演华北北部地壳上地幔速度结构

于利民; 刁桂苓; 李钦祖; 束沛镒

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由深源远震体波记录反演华北北部地壳上地幔速度结构

于利民, 刁桂苓, 李钦祖, 束沛镒

文章导航 > 华北地震科学 > 1995 > 13(3): 11-20

于利民, 刁桂苓, 李钦祖, 束沛镒. 由深源远震体波记录反演华北北部地壳上地幔速度结构[J]. 华北地震科学, 1995, 13(3): 11-20.

引用本文:

于利民, 刁桂苓, 李钦祖, 束沛镒. 由深源远震体波记录反演华北北部地壳上地幔速度结构[J]. 华北地震科学, 1995, 13(3): 11-20.

Yu Limin, Diao Guiling, Li Qinzu, Su Peiyi. INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES[J]. North China Earthquake Sciences, 1995, 13(3): 11-20.

Citation:

Yu Limin, Diao Guiling, Li Qinzu, Su Peiyi. INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES[J]. North China Earthquake Sciences, 1995, 13(3): 11-20.

由深源远震体波记录反演华北北部地壳上地幔速度结构

1 河北省地震局, 石家庄 050021;
2 天津市地震局, 天津 300201;
3 中国科学院地球物理研究所, 北京 100101

基金项目: 国家地震局85课题

详细信息

中图分类号: P315.2

INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES

1 Seismological Bureau of Hebei Province, Shijiazhuang 050021;
2 Seismological Bureau of Tianjin City, Tianjin 300201;
3 Geophysical Institute of the Chinese Academy of Sciences, Beijing 100101

摘要: 重点研究的地区为河北省北部包括京津地区,以及山西、内蒙的部分地区,在此区选取了29个台站;在向东延伸的背景区,选取了6个台站。利用这些台站的深源远震体波记录资料,通过选取介质结构模型,计算理论地震图,与观测图进行拟合,以确定地震台下介质结构的可接受模型。在拟合时,对每个地震台站都选择若干次深源远震的体波记录作为观测图。对每个地震台站一般都算出60个不同模型的理论图。实际上做出的结果比地壳深,为大约80km(即大致相当于岩石层或称岩石圈)厚度内的地壳上地幔介质结构,它们大都由10层左右的介质组成。通过波形拟合共给出了上述35个台站下的壳幔介质分层结构。并由此给出了Moho面的轮廓。
- 华北 /
- 上地幔 /
- 地壳结构 /
- 波速构造,远震 /
- 体波
Abstract: The studied area is the northern part of Hebei province, including Beijing-Tianjin region and some regions in Shansi prevince and the Inner Mongolia Autonomous Region.29 seismic stations were selected in this area and 6 selected in the east-extending background area.By the body wave of deep focus distant earthquakes from those stations and by selecting the medium strucgure medel, the theoretical seismograms were calculated,which were fitted with the observed seismograms so as to define an acceptable model for the medium structures under the seismic stations.In titting,for each seismic station,the body wave recordings of deep focus distant earthquakes were selected for several times to be as observed seismograms.Urually,for each seosmic station,the theoretical seismograms of 60 different models were calculated.In fact,the obtained result is deeper than the crust,being the medium structure of upper mantle of the crust in the depth of about 80 kms (that is, roughly corresponding to the lithostrome or called lithosphere),they all consist of about 10 layers of media.By wave form fitting, the medium stratified structures of the mantle under above mentioned 35 seismic stations wete given, and based on this,the outline of Moho surface was given.
- North China /
- upper mantle /
- crust structure /
- wave velocity structure /
- distant earthquke

[1]

1 Langton, C. A, and Helmberger, D. V, A Procedure for modeling shallow sources, Geophys. J. R. Astron. Soc. 42, 117—130,1975.
2 Richards, P, G, The apparent attenuagion of a scattering medium, Bull, Seism Soc Amer, 23, 1983.
3 朱碚定,李幼铭..利用深源远震记录波形研究台站区域的介质结构.地球地理学报,1985, 28 (1): 16~25
4 朱碚定,李幼铭,张立敏,束沛镒,梁尚鸿.川南、滇北地区台网区域壳幔介质分层结构的初步研究.地球物理学报,1986,29 (3): 245—254
5 李祥,包东健,陈原平,束沛镒,朱碚定.内蒙古中部地区壳幔介质分层结构.华北地震科学,1987, 5 (4): 58—65
6 姚殿义,于利民,李钦祖,束沛镒,李幼铭.利用合成地震图研究东北地区壳幔介质结构.地震学报,1991, 13 (4): 471-479
7 国家地展局《深部物探成果》编写组.中国地壳上地换地球物理探测成果.北京:地震出版社,1986.

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[2]	卢造勋, 蒋秀琴, 白云, 姜德录, 潘科. 胶辽渤海地区地壳上地幔结构特征与介质的横向非均匀性 . 华北地震科学, 1999, 17(2): 43-51.
[3]	林怀存. 山东地区近震地震波速与地壳结构 . 华北地震科学, 1989, 7(3): 82-90.
[4]	周翠英, 魏光兴. 沂沭断裂带现代构造应力场与地震活动 . 华北地震科学, 1987, 5(2): 29-39.
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[6]	胡新亮. 利用相对时间在计算机上进行近震定位 . 华北地震科学, 1987, 5(2): 99-105.
[7]	詹志佳. 唐山地震的震磁现象 . 华北地震科学, 1987, 5(s1): 307-309.
[8]	赵文峰. 东北深震与华北内陆地震的相关活动 . 华北地震科学, 1987, 5(3): 19-27.
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[10]	孙武城, 李松林, 张晓普. 华北大陆地壳-上地幔波浪断裂型构造的光弹模拟实验 . 华北地震科学, 1983, 1(1): 21-27.

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由深源远震体波记录反演华北北部地壳上地幔速度结构

1 河北省地震局, 石家庄 050021;

2 天津市地震局, 天津 300201;

3 中国科学院地球物理研究所, 北京 100101

基金项目: 国家地震局85课题

收稿日期: 1995-01-30
刊出日期: 1995-09-15

中图分类号: P315.2

关键词:

华北 /

上地幔 /

地壳结构 /

波速构造,远震 /

体波

摘要: 重点研究的地区为河北省北部包括京津地区,以及山西、内蒙的部分地区,在此区选取了29个台站;在向东延伸的背景区,选取了6个台站。利用这些台站的深源远震体波记录资料,通过选取介质结构模型,计算理论地震图,与观测图进行拟合,以确定地震台下介质结构的可接受模型。在拟合时,对每个地震台站都选择若干次深源远震的体波记录作为观测图。对每个地震台站一般都算出60个不同模型的理论图。实际上做出的结果比地壳深,为大约80km(即大致相当于岩石层或称岩石圈)厚度内的地壳上地幔介质结构,它们大都由10层左右的介质组成。通过波形拟合共给出了上述35个台站下的壳幔介质分层结构。并由此给出了Moho面的轮廓。

English Abstract

INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES

1 Seismological Bureau of Hebei Province, Shijiazhuang 050021;

2 Seismological Bureau of Tianjin City, Tianjin 300201;

3 Geophysical Institute of the Chinese Academy of Sciences, Beijing 100101

Received Date: 1995-01-30
Publish Date: 1995-09-15

Keywords:

Abstract: The studied area is the northern part of Hebei province, including Beijing-Tianjin region and some regions in Shansi prevince and the Inner Mongolia Autonomous Region.29 seismic stations were selected in this area and 6 selected in the east-extending background area.By the body wave of deep focus distant earthquakes from those stations and by selecting the medium strucgure medel, the theoretical seismograms were calculated,which were fitted with the observed seismograms so as to define an acceptable model for the medium structures under the seismic stations.In titting,for each seismic station,the body wave recordings of deep focus distant earthquakes were selected for several times to be as observed seismograms.Urually,for each seosmic station,the theoretical seismograms of 60 different models were calculated.In fact,the obtained result is deeper than the crust,being the medium structure of upper mantle of the crust in the depth of about 80 kms (that is, roughly corresponding to the lithostrome or called lithosphere),they all consist of about 10 layers of media.By wave form fitting, the medium stratified structures of the mantle under above mentioned 35 seismic stations wete given, and based on this,the outline of Moho surface was given.

于利民, 刁桂苓, 李钦祖, 束沛镒. 由深源远震体波记录反演华北北部地壳上地幔速度结构[J]. 华北地震科学, 1995, 13(3): 11-20.

引用本文:

于利民, 刁桂苓, 李钦祖, 束沛镒. 由深源远震体波记录反演华北北部地壳上地幔速度结构[J]. 华北地震科学, 1995, 13(3): 11-20.

Citation:

Yu Limin, Diao Guiling, Li Qinzu, Su Peiyi. INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES[J]. North China Earthquake Sciences, 1995, 13(3): 11-20.

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由深源远震体波记录反演华北北部地壳上地幔速度结构

INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES

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由深源远震体波记录反演华北北部地壳上地幔速度结构

1 河北省地震局, 石家庄 050021; 2 天津市地震局, 天津 300201; 3 中国科学院地球物理研究所, 北京 100101

English Abstract

INVERSE OF VELOCITY STRUCTURE OF UPPER MANTLE OF CRUST IN NORTHERN PART OF NORTH CHINA BY BODY WAVE RECORDINGS OF DEEP FOCUS DISTANT EARTHQUAKES

1 Seismological Bureau of Hebei Province, Shijiazhuang 050021; 2 Seismological Bureau of Tianjin City, Tianjin 300201; 3 Geophysical Institute of the Chinese Academy of Sciences, Beijing 100101

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目录

1 河北省地震局, 石家庄 050021;

2 天津市地震局, 天津 300201;

3 中国科学院地球物理研究所, 北京 100101

1 Seismological Bureau of Hebei Province, Shijiazhuang 050021;

2 Seismological Bureau of Tianjin City, Tianjin 300201;

3 Geophysical Institute of the Chinese Academy of Sciences, Beijing 100101