遥感技术在矿产远景调查工作中的应用——以内蒙古莫力达瓦旗巴彦街地区为例

工作区所在的大兴安岭北段地区，由于地面披覆物的影响，地质体在遥感影像上的区分度降低，一般认为遥感技术难以发挥作用.但是对矿调工作来说，抓住与矿产分布最为密切的线、环形构造和遥感蚀变异常两方面的内容最为关键，而这两方面的内容受地面披覆物的影响相对较小.在巴彦街矿调项目中，首先对工作区进行不同尺度的线、环形构造解译，运用比值-主成分分析方法提取蚀变异常.综合两方面的内容，并结合化探异常圈定了重点工作区，经探槽工作验证，具有较好的找矿前景.

APPLICATION OF REMOTE SENSING TECHNOLOGY IN MINERAL PROSPECTING: A Case Study of Bayanjie Area in Inner Mongolia

Due to heavy coverage in the northern Daxinganling region, it is difficult to discriminate the geological bodies on the remote sensing images. The remote sensing technique is commonly considered helpless. However, for mineral prospecting work, the key is to collect the information related with mineralization, such as linear or circular structures and alteration anomalies, which are less affected by the ground coverage. Based on the mineral survey in Bayanjie area, the linear/circular structures in different scales are interpreted first, and then the alteration anomalies are extracted with ratiosprincipal component analysis. On this basis, integrating geochemical anomalies, the key areas for further study are delineated. The exploring prospect is verified by trench analysis.