内蒙古额仁陶勒盖花岗岩成因与银矿床的形成

ORIGIN OF THE ERENTAOLEGAI GRANITE AND ITS RELATIONS TO SILVER DEPOSIT,INNER MONGUOLIA

对额仁陶勒盖花岗岩的地质学、地球化学的研究表明，它为岩浆成因，是壳幔混合源岩浆演化的产物；岩体在成岩过程中发生了强烈的结晶分异作用，导致岩浆后期及期后热液中银的富集，银矿床与石英斑岩（花岗岩结晶分异的产物）在地质及地球化学诸多方面存在着显著的成因联系。

Studies on geology and geochemistry of the Erentaolegai granite suggest that the granite is magmatogenic,it is from a mixing source of the crust and mantle.The intrusion has been intensively crystallized and differentiated during the rockforming process,which are resulted in the enrichment of silver in the hydrothermal solution in the late magmatic epoch and post magmatism.The silver deposit has obvious genetic origin with quartz porphyry,resulted by crystallization differentiation of the granite,in geology and geochemistry.