湖南深部地球物理场特征与地震的关系
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摘要
通过资料收集和整理,对湖南深部地球物理场布格重力异常、航磁异常、莫霍面、地热场和地壳结构反映出来的特征进行了总结和分析,同时对湖南历史地震(Ms≥434级)和近代地震(ML≥3.0级)与这些深部地球物理场特征的关系进行了讨论。结果表明:湖南地震活动的空间分布与深部地球物理场特征有一定的内在关联,有较好的对应关系。
In this paper,the authors summarized and analyzed the features reflected by Bouguer gravity anomaly,aeromagnetic anomaly,Moho surface,geothermal field and crustal structure in Hunan deep geophysical field based on the collected data.And the relationship between the historical Ms≥43 4 earthquakes and recent ML≥3.0 earthquakes and these characteristics of deep geophysical field were discussed.The results show that there are certain internal connection and good corresponding relationship between the spatial distribution of seismic activity and deep geophysical features in Hunan area.
In this paper,the authors summarized and analyzed the features reflected by Bouguer gravity anomaly,aeromagnetic anomaly,Moho surface,geothermal field and crustal structure in Hunan deep geophysical field based on the collected data.And the relationship between the historical Ms≥43 4 earthquakes and recent ML≥3.0 earthquakes and these characteristics of deep geophysical field were discussed.The results show that there are certain internal connection and good corresponding relationship between the spatial distribution of seismic activity and deep geophysical features in Hunan area.
引文
[1]吴伟奇.湖南省重磁异常特征与地震活动关系[J].地震研究,2001,24(1):29-35.
[2]谢湘雄,顾剑虹.试论湖南省莫霍面形态及地壳厚度特征[J].湖南地质,1990,9(2):10-18.
[3]李超文,彭头平.湖南地热资源分布及远景区划[J].湖南地质,2001,20(4):272-274.
[4]童迎世,毛际香,童敏.地下热泉的形成条件与地震[J].华南地震,2002,22(2):55-60.
[5]铙家荣,王纪恒,曹一中.湖南深部构造[J].湖南地质,1993(增刊7):1-100.
[2]谢湘雄,顾剑虹.试论湖南省莫霍面形态及地壳厚度特征[J].湖南地质,1990,9(2):10-18.
[3]李超文,彭头平.湖南地热资源分布及远景区划[J].湖南地质,2001,20(4):272-274.
[4]童迎世,毛际香,童敏.地下热泉的形成条件与地震[J].华南地震,2002,22(2):55-60.
[5]铙家荣,王纪恒,曹一中.湖南深部构造[J].湖南地质,1993(增刊7):1-100.
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