遥感地质解译及矿化蚀变信息提取在矿产资源评价中的应用

选取Landsat7ETM+和ASTER为遥感信息提取的数据源,基于ETM+数据进行信息提取,结合ASTER数据处理结果进行对比验证,对青海省白日其利地区金矿勘查区进行遥感资源评价。通过遥感影像预处理、地质解译标志建立、影像目视解译获取区内岩性与构造解译图、遥感蚀变信息的提取、圈定找矿靶区等步骤,预测了4个成矿远景区,为后续找矿奠定了基础。

Application of geological interpretation and mineralization information extracting by remote-sensing in mineral resource evaluating

In this paper,the Landsat 7 ETM ＋ and ASTER were used as the data source of remote sensing information extraction. ASTER data processing results were combined to compare and verify,and the remote sensing resource evaluation of gold exploration areas of Rizeqili of Qinghai was carried out. Through remote sensing image pre- processing,geological interpretation signs establishing,visual interpretation of the image acquisition and construction of regional lithological interpretation map,remote sensing alteration information extraction,delineation of prospecting targets and other steps,four metallogenic prospect areas were predicted. The work laid the foundation for the subsequent prospecting.