摘要
对新疆新10号泉溶解气的变化特征进行了研究。通过对13组MS≥4.6地震的分析可以看出:(1)深、浅源气体的异常形态和异常时间有所差别;(2)不同气体各有其异常特点,同源气体的同步性很好。在所统计的13组15次地震中,来自深源的CH4、He震前发生异常次数分别是11次和10次,两者同步的有9次,它们异常起始时间接近,异常形态都表现为趋势性中短期异常;来自浅源的Ar、N2映震率接近,15次地震前Ar异常有4次,N2异常为3次,两者同步性好,以高值异常为主,短临异常明显;来自深、浅源的混合气体CO2多表现为趋势性高值中短期异常,在恢复背景值的过程中发震。
We studied the change characteristics of dissolved gas in the No. 10 spring, according to the analysis about 13 group earthquakes with Ms ≥4.6. We think, （ 1 ） The anomalous shape and anomalous time of deep and shallow gas are different; （2） different gas have theirselves anomalous characteristics, synchronization of the gas come from same fountain is good. According to the statistics of 13 group earthquakes, anomalous times of CH4 and He come from deep fountain are 11 times and 10 times, 9 times of their anomalies is synchronization, the starting time of their anomalies are near, anomalous characteristics are trend medium-short term anomalies; response efficiency of Ar and N2 to earthquakes are near, 4 times anomalies for Ar and 3 times anomalies for N2 before 15 times earthquakes, synchronization of them are good, the main anomalies are high value, short-term anomalies are distinctness; the CO2 come from deep and shallow fountain mainly represent mediumshort term anomalies of trend high valule, and, the earthquake occur during comeback.
出处
《内陆地震》
2007年第4期334-341,共8页
Inland Earthquake
关键词
新疆
新10号泉
溶解气
变化特征
Xinjiang
New No. 10 Spring
Dissolved Gas
Change Characteristic
作者简介
朱成英，女,山东潍坊人，助理研究员，从事地震地下流体监测及分析预报工作
