1998年怀来后郝窑断层气CO2变化特征分析

分析了１９９８年怀来后郝窑测点断层气ＣＯ２变化特征及其与影响因素地温和降雨的关系。一般情况下该测点ＣＯ２变化与地温呈正相关。讨论了导致该测点断层气ＣＯ２变化与地温呈负相关的原因。认为３月～６月初该测点ＣＯ２测值与地温呈反向变化是张北－尚义６．２级地震的后效；６月中旬至９月中旬的反向变化是由于降雨过多引赵的，介绍了１９９９年１月２９日内蒙古锡林浩特５．２级地震及３月１１日张北５．６级地震前后该测点断

ANALYSIS ON CHANGE OF CO2 IN FAULT PRODUCT GAS IN HOUHAOYAO,HUAILAI COUNTY IN 1998

The relationship between the characteristics of change of CO 2 in fault product gas in Houhaoyao,Huailai county in 1998 and influence factors,such as geotemperature and rainfall is analysed. The observation values of CO 2 in fault product gas and geotemperature change generally in synchronism. The reason of negative correlation between change of CO 2 and geotemperature is discussed.The negative correlation from March to early in June,1998 resulted from recovery process of CO 2 observation values from high to low after the Zhangbei Shangyi M S6.2 earthquake. The negative correlation from the middle of June to the middle of Sept.,1998 resulted from excessive rainfall during this period. The anomalous characteristics of CO 2 before and after the Xilinhaote M S5.2 earthquake, Inner Mongolia on January 29,1999 and the Zhangbei M S5.6 strong aftershock on March 11, 1999 are introduced.