内蒙古万合永火山盆地遥感构造解译

Structural Interpretation of Remote Sensing Image in Wanheyong Volcanic Basin,Inner Mongolia

万合永火山盆地位于大兴安岭南端,沽源—红山子铀成矿带的北东段,中生代火山活动非常频繁且强烈。利用Geoeye-1遥感数据,采用目视解译的方法,对万合永火山盆地进行了线、环构造解译,经过后期野外地质查证,并结合研究区已有的地质资料,得出了该区断裂构造分布规律,并划分出NE向和NW向为主的线性构造格局。根据解译出的构造信息,并结合研究区的矿化、遥感蚀变等信息,圈定出了四处找矿有利地段,从而为下一步的矿产勘查提供依据。

Wanheyong volcanic basin is located in south Great Hinggan Range,and northeast of the GuyuanHongshanzi uranium metallogenic belt. The volcanic activities are very frequent and violent in Mesozoic era. To interpret the linear and annular structure in Wanheyong volcanic basin,the remote sensing technique and the visual interpretation were applied. The distribution regularities of linear structures which are dominated by NE and NW trending faults can be got from the field geological examination and the available geological data. Finally,according to the interpretation,mineralization and remote sensing alteration information of the study area,four metallogenic target areas providing a basis for the next step of mineral exploration were delineated.