内蒙古中元古界渣尔泰山群区域成矿特征研究

华北陆块北缘西段狼山—渣尔泰山裂陷槽沉积的中元古界渣尔泰山群是大型—超大型铜多金属矿的重要赋存层位。近几年 1∶5万区域地质调查已查明在其西部的巴音诺尔公地区也有渣尔泰山群分布 ,并在阿古鲁沟组新发现了朱拉扎嘎大型层控微细粒浸染型金矿床 ,该矿床与炭窑口等其他矿床均具有相似的热水沉积特征。在区域成矿方面由西向东构成巨大的Au(Pt?) Cu Pb Zn S(Fe) Mn热水沉积成矿系统。与国外同类成矿系统相比 ,该系统不仅具有独特的金成矿作用 ,而且已发现了许多贫矿矿床。因此 ,该区对于寻找金及富铜多金属矿仍具有很大潜力

REGIONAL METALLOGENIC CHARACTERISTICS IN PROTEROZOIC CHAERTAISHAN GROUP,INNER MONGOLIA

The Proterozoic Cha'ertaishan group is a very important stratum bearing large and ultra-large scale Cu polymetallic deposits in Langshan-Chaertaishan rift, northern margin of North China. In recent years the Proterozoic Cha'ertaishan group has been found in Bayinnuo area, western Inner Mongolia, by the 1∶50 000 regional survey, and a large scale stratabound micro-fine grain disseminated Au deposit has been found in Agulugouzu group. The deposit is characterized by the thermal water sedimentary type, similar to the Tangyaokou deposit. There is a giant east-west direction Au-Cu-Pb-Zn-S(Fe)-Mn thermal water-sedimentary metallogenic system. The system has Au-ore formation compared with the same kind of deposits abroad, and until now some poor ore deposits have been found in this area. So, there is a giant potential of finding Au and Cu polymetallic ore in this area.