甘肃北山梧桐井地区遥感蚀变信息提取

梧桐井地区处于塔里木板块一级构造单元,具体位于敦煌地块三级构造单元里。具有优越的成矿地质背景和巨大成矿潜力,已发现一批金、银、铜找矿靶区。该区属于甘肃北山区,地貌属于低山丘陵区,基岩出露,因此在该地区开展遥感找矿的研究是一种便捷、有效、经济的勘查手段。利用ETM遥感数据提取与矿化有关的异常信息,并结合地质资料,区划成矿远景区和圈定找矿靶区,取得了很好的应用效果。

Extraction of remote sensing alteration information in Wutongjing area,Beishan,Gansu

Wutongjing area is located in the first structural unit of Tarim Plate,and in the third structural unit of Dunhuang Block.It has a superior metallogenic geological background and great metallogenic potential,and a number of gold,silver and copper prospecting targets have been found.This area belongs to the North Mountain area of Gansu Province,the landform belongs to the low mountain and Hill area,the bedrock is exposed,so it is a convenient,effective and economical exploration method to carry out the research of remote sensing prospecting in this area.Using ETM remote sensing data to extract abnormal information related to mineralization,and combining with geological data,zoning metallogenic prospect area and delineating prospecting target area,has achieved a good application effect.