黔西南地区遥感构造与金矿的关系及找矿预测

遥感图像显示黔西南地区有两个地层区——台地相区和槽盆相区。复合内生微细浸染型金矿均产于短轴背斜、穹窿和与之伴生的断裂内,因此遥感解译的正向环形构造和环形影像对找矿有重要意义。另外,区内金矿与遥感解译推测的隐伏断裂也有一定关系。基于上述认识,以ETM+和GeoEye数据为数据源生成融合图像,进行遥感构造解译和分析,圈定了金矿找矿预测区,为进一步开展贵州省矿产资源潜力评价和找矿工作提供了参考依据。

The Relationship Between Remote Sensing Structures and Gold Deposits and Ore-prospecting Prognosis in Southwest Guizhou

Remote sensing images show that there are two types of stratigraphic layers in southwest Guizhou Province.One is of carbonate platform facies and the other is of groove basin facies.Au deposits occur in short-axis anticlines,dome structures and their associated faults.The positive circular structures and circular images interpreted by remote sensing are of great importance to Au mineral prospecting.In addition,the Au deposits also have certain relationship with the hidden fractures interpreted by remote sensing.Based on the idea mentioned above and using the fused image produced by the data sources of ETM+ and GeoEye data,the authors carried out the remote sensing interpretation and analysis of the structures,and delineated the prognostic areas for Au mineral prospecting.