【摘要】 本文通过对西起安南坝,东至昌马车路口的阿尔金断裂东北段断层气体的分析,讨论了微量气体H₂、Hg、Rn、CO₂在断层上的分布特征。指出,在同一剖面上,四种气体浓度不仅对断层有同步显示规律,而且与断层的活动强度有一定的关系。另外,分析结果还显示了H₂、Hg、Rn、CO₂的浓度有西高东低的趋势。这一特征还与地质资料所表明的阿尔金山断裂东北段西部的现今活动比东部的现今活动较强的事实相吻合。文章还讨论了用对断层气体进行定点、定期观测的结果来判断断层的活动动态及进行地震短临预报的可能性。最后指出,利用断层气体来研究活动断层是一种切实可行的方法。更多还原

【Abstract】 This paper deals with the distribution of trace gases, such as H₂, Hg, Rn, CO₂ on the faults by means of analysis of the gases in the faults of the northeastern part of Arerjin Fault starting from Annanba Dam in the west and ending in the road of Changma in the east. The research pointed out that on the same profile, the concentration of the four kinds of gases not only have the syneronous change but also have some to do with the activity strength of the faults. In addition, the analysis shows that the concentration of the gases（H₂, Hg, Rn, CO₂） is trending to be higher in the west but lower in the east, which is accorded with the strong activity in the west and weak in the east for the faults.This paper also discusses how to judge the dynamic state and how to predict the short-term and impending earthquakes by means of gas fixing point and gas periodical observation, pointing out that it is a practical method to make use of gas to study the activities of faults.更多还原