云南绿春地区遥感地质特征与找矿远景综合分析

针对云南绿春地区地质背景复杂、地形崎岖、植被稠密、传统地面调查方法实施区域地质填图比较困难的问题,利用TM,ETM+和SPOT5多源遥感数据,采用三维可视化等技术提取了该区域地层、岩体和构造的岩性组合、线性构造和环形构造等特征,分析了地质背景,依据构造关系和遥感影像特征分析了区域应力状态；提取了与矿化有关的构造、岩性及羟基、铁染蚀变遥感异常信息,在剖析典型矿床的基础上,进行了找矿预测.取得的研究成果为区域地质填图和矿产勘查工作部署提供了基础地质信息及找矿线索.

A Comprehensive Analysis of Remote Sensing Geological Characteristics and Ore Prospecting Perspective of Luchun Area, Yunnan Province

Luchun area in Yunnan Province is characterized by complex geological background,rugged terrain condition and thick vegetation coverage,and hence it is difficult to utilize traditional ground investigation methods for regional geological mapping.In this study,multi-source remote sensing data,such as TM,ETM+ and SPOT5,were adopted.Geological background was analyzed by extracting features from regional strata,rocks,and linear and circular structures,with emphasis placed on the 3D visualization technology.According to structural relationships and remote sensing image features,the study was focused on the analysis of regional stress as well.Finally,the prognosis of the mineral prospecting perspective was worked out by way of further research on typical ore deposits and extracting information related to mineralization from structure,lithologic character and altered anomaly of hydroxyl and iron ions.On such a basis,the geological information and prospecting clues are useful and valuable for deploying regional geological mapping.