南北地震带南段水文地球化学特征及其与地震的关系
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摘要
本文概述了南北地震带南段的水文地质条件和水文地球化学特征,并编绘了B、F、Li、Sr等微量元素的异常图,分析了水文地球化学与地震的关系。认为(1)构造对地震、地下热水和微量元素的高值区均具有控制作用,它们在空间分布上具有较明显的一致性;(2)高中温热水区(尤其是高中温热泉密集带),常常是地震活动的强烈区,但强震区不一定有高中温热泉密集;(3)在地震孕育过程中,温泉和热水井中的水温、流量和水化学成分均可发生变化。温泉热水中的水化学成分,特别是微量元素变化是地震预报的前兆信息之一。
This paper outlines hydrogeologic condition and hydrogeochemical feature in the Southern part of NorthSouth Earthquake Belt in China and maps abnormal map of microelements of B,F,Li and Sr. At the same time,the relationship between hydrogeochemical feature and earthquake is analyzed. The research results indicates:(1)Earthquake,geothermal heat and microelement abnormal areas are controlled by tectonic.Their distributions in space are obviously same.(2)Highmiddle temperature water areas,especially the areas of highmiddle heat spring,are always the strong regions of earthquake activity.But the strong earthquake area does not always occur in highmiddle heat spring.(3)During the process of earthquake formation water temperature,flow quantity and hydrogeochemical component in geothermal wells and hot springs may be changed. The change of hydrochemical components,especially microelement in hot springs may be one of information to forecast earthquake.
This paper outlines hydrogeologic condition and hydrogeochemical feature in the Southern part of NorthSouth Earthquake Belt in China and maps abnormal map of microelements of B,F,Li and Sr. At the same time,the relationship between hydrogeochemical feature and earthquake is analyzed. The research results indicates:(1)Earthquake,geothermal heat and microelement abnormal areas are controlled by tectonic.Their distributions in space are obviously same.(2)Highmiddle temperature water areas,especially the areas of highmiddle heat spring,are always the strong regions of earthquake activity.But the strong earthquake area does not always occur in highmiddle heat spring.(3)During the process of earthquake formation water temperature,flow quantity and hydrogeochemical component in geothermal wells and hot springs may be changed. The change of hydrochemical components,especially microelement in hot springs may be one of information to forecast earthquake.
引文
① 崔元中等,1986,中国南北地震带构造、地震及近期强震危险区预测图说明书。
① 陈喜昌 , 1 985,川西地区温泉热水研究。
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[3] 国家地震局科技监测司.水文地球化学地震前兆观测与预报[M].北京:地震出版社,1992.
[4] 中国科学院青藏高原综合科学考查队.腾冲地热[M].北京:科学出版社,1989.
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[7] 林云芳,曾小革,续春荣.地震预测的地磁学方法[A].特大自然灾害预测的新途径和新方法[C].北京:科学出版社,2000.
① 陈喜昌 , 1 985,川西地区温泉热水研究。
[1] 马杏垣主编.中国岩石圈动力学地图集[M].北京:中国地图出版社,1989.
[2] 程裕淇主编.中国区域地质概论[M].北京:地质出版社,1994.
[3] 国家地震局科技监测司.水文地球化学地震前兆观测与预报[M].北京:地震出版社,1992.
[4] 中国科学院青藏高原综合科学考查队.腾冲地热[M].北京:科学出版社,1989.
[5] 王钧,黄尚瑶,黄歌山,等.中国地温分布的基本特征[M].北京:地震出版社,1990.
[6] 张炜,王吉易,鄂秀满,等.水文地球化学预报地震的原理与方法[M].北京:教育科学出版社,1988.
[7] 林云芳,曾小革,续春荣.地震预测的地磁学方法[A].特大自然灾害预测的新途径和新方法[C].北京:科学出版社,2000.
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