基于证据加权法的攀西地区铜镍铂族元素找矿远景预测

THE LONG-RANGE PERSPECTIVE FORECAST OF Cu-Ni-PGE ORES IN PAN-XI AREA OF SI-CHUAN PROVINCE BASED ON WEIGHTS OF EVIDENCE METHOD

位于扬子地台西南缘的攀枝花～西昌地区,历经多期次构造～岩浆活动和变质作用,形成了我国重要的铜镍铂族元素地球化学省,具有良好的铜镍铂族元素成矿地质条件。近年来,随着该区矿业的迅猛发展和矿产资源的不断开发殆尽,新的成矿与找矿理论和找矿方法,已成为该区找矿突破的关键。这里在MAPGIS软件的支持下,采用统计证据加权法,对研究区内铜镍铂族矿床的找矿远景区进行了预测,取得了良好的预测效果,并筛选出篾丝箩等多处重要找矿靶区。

PanZhihua-Xichang area, located in the southwest margin of the Yangtze platform, experienced several stages tectonic-magmatic activities and metamorphism and are the important Cu-Ni-PGE geochemical province in China with good Cu-Ni-PGE ore-forming geological condition. Recently, with the rapid development of the mining industry and the consumption of the mineral resources, new metallogennic-prospecting theory and methods used in exploration are the key factors for finding out deposits in this area. Supported by the MAPGIS and using Weights of Evidence Method, we predict the targets of exploration programs of the Cu-Ni-PGE ores with good results and screen several important prospecting target areas such as Miesiluo area.