阿尔泰成矿带主要矿床类型及勘查选区

阿尔泰成矿带是我国最重要的稀有金属、有色金属和贵金属成矿带之一。区域成矿地质背景和成矿条件显示了该区良好的资源潜力。已知矿床的主要类型有伟晶岩型(云母、锂铍钽、宝石)矿床、与海相火山岩有关的块状硫化物矿床、岩浆铜镍硫化物型矿床、沉积变质型铁矿、浅变质含碳细碎屑岩型金矿和韧性剪切带型金矿床,近年来在斑岩型铜矿床的找矿工作有了新进展。通过与哈萨克斯坦国和蒙古国的成矿地质条件对比分析研究,在地球化学块体理论资源量预测的基础上,结合地物化资料优选了进一步找矿靶区。

Major Ore Deposits in Altay Metallogenic Zone and Propecting Areas

The Altay metallogenic zone is one of the most important nonferrous and precious metals mineralization zones in China. The regional metallogenic background and conditions indicate an excellent potential of minerals in the zone. To date the following ore deposits have been found. They are mica-, lithium-beryllium-tantalum-and gem-bearing pegmatite, marine volcanic massive sulfide, magmatic copper-nickel, metasedimentary iron, gold-bearing low grade metamorphosed carbon clastic rocks and gold-bearing ductile shear zone. A great progress has been made in recent exploration of porphyry copper. By means of comparative study of metallogenic conditions with those in Kazakhstan and Mongolia, the favorable target areas for further exploration have been determined on the basis of theoretical reserve estimate on geochemical block in the Altay metallogenic zone.