渤海及其邻区居里等温面的研究

地震地质 ›› 1996, Vol. 18 ›› Issue (4): 398-402.

渤海及其邻区居里等温面的研究

刘光夏, 张先, 贺为民, 沈京秀, 唐喜凤

国家地震局地球物理勘探中心, 郑州 450003

收稿日期:1995-06-30 修回日期:1996-04-30 出版日期:1996-12-04 发布日期:2009-11-25
基金资助:
地震科学联合基金(91211)

RESEARCH ON CURIE ISO-GEOTHERMAL SURFACE IN BOHAI SEA AND ITS ADJACENT REGION

Liu Guangxia, Zhang Xian, He Weimin, Shen Jingxiu, Tang Xifeng

Research Center of Exploration Geophysics, SSB.Zhengzhou 450003

Received:1995-06-30 Revised:1996-04-30 Online:1996-12-04 Published:2009-11-25

摘要/Abstract

摘要： 采用三维磁性层反演方法,研究了渤海及周边地区的居里等温面起伏。结合地表热流值、地壳厚度及地壳上地幔的电性结构,分析了研究区的深部地质特征。发现渤海及济阳坳陷北部的垦利至黄河口地区,居里面的深度只有13～20km,而胶辽和承德地区却深达22～24km.该项研究旨在对地震区划的深部构造背景问题提出新的建议。

关键词: 居里等温面, 航磁测量, 频率域, 三维磁性层反演

Abstract: In this paper,the authors use 3-D magnetic stratum inversion calculation to study the relief of Curie iso-geothermal surface in Bohai Sea and its abjacent regions,and along with the surface heat flow,the electrical structure of crust and upper mantle,analyze the deep seated geological characteristics.It is found that in Bohai Sea and the region from Kenli to Huanghekou in the northern part of Qiyang depression,the depths of Curie surface is only 13～20km while it reaches 22～24km at Jiao-Liao and Chengde region.The aim of our research is to Present new suggestions for the earthquake zoning and the earthquake disaster prevention.

Key words: Curie isothermal surface, Aeromagnetic survey, Frequency domain, 3-D magnetic stratum inversion calculation

刘光夏, 张先, 贺为民, 沈京秀, 唐喜凤. 渤海及其邻区居里等温面的研究[J]. 地震地质, 1996, 18(4): 398-402.

Liu Guangxia, Zhang Xian, He Weimin, Shen Jingxiu, Tang Xifeng. RESEARCH ON CURIE ISO-GEOTHERMAL SURFACE IN BOHAI SEA AND ITS ADJACENT REGION[J]. SEISMOLOGY AND GEOLOGY, 1996, 18(4): 398-402.

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