老鸦陈断层的地质特征及活动性

在郑州市地震小区划研究中，发现市北面可能存在一条通过市区的老鸦陈断层。通过对物探、地质和卫星遥感等资料的收集解释分析，以及开展地质、深浅层人工地震勘探和汞气测量，查清了该断层的位置、产状和活动性，为该市的地震小区划工作提供了重要依据。

Geological feature and activity of Laoyachen fault

It is found that a fault probably exists,which is running through nearby Zhengzhou urban districts during the research into the microzoning of Zhenzhou city.Based on collecting and analyzing of the data such as the geophysical prospecting,geology,satellite remote sensing and so on,as well as the geologic survey,man-made earthquake exploration for deep and shallow layers and Hg-gas observing are carried out,the position,mode of occurrence and activity of Laoyachen fault have been investigated.It has important significance to the work for the microzoning in this city.