【摘要】 <正> 1983年8月15日至8月27日,在1983年11月7日菏泽5.9级地震震中以南40公里的河南省兰考县堌阳、爪营两地的24平方公里范围内,发现38眼农用机井出现水、气 异常现象。这些异常现象表现为井水翻花、冒泡、 发响,并逸出可燃气体。因各井可燃气体含量和 浓度不同,故可燃程度也不一样,有的井孔点燃时更多还原

【Abstract】 In mid and late August 1983, a certain amount of anomalies of underground water and gases appear in the Guyang and Zhuaying in Lankao County, Henan Province, about 40 km south of the epicenter of Heze earthquake of M 5.9. A great amount of HCO3- was found in the water sample obtained from the wells and sulphides from exceptional ones. The gas sample from these wells contains a lot of CH4. The sample from very few wells also contains He. These wells are distributed near and in parallel with the Liaocheng-Lankao fault zone. According to the studies of the mechanisms of the water and gas anomalies in this area, it is preliminarily thought that these macroscopic anomalies are related to the Heze earthquake.更多还原