粤东地区银矿成矿规律及找矿设想

粤东地区银矿资源丰富，类型齐全，火山岩型银矿和岩浆期后热液型银矿是主要类型。前者具层控特征，后者主要属岩控矿床，是找矿的主要类型。火山盆地边缘及其近围是找矿的重点地区，地质与地球化学找矿相结合是行之有效的找矿方法。

THE METALLOGENIC LAW AND PROSPECTING OF SILVER DEPOSITS IN THE EASTERN GUANGDONG

Many silver deposits have been found in the eastern Guangdong which have complete genetic types with the dominance of volcanic type and postmagmatic type. The volcanogenetic deposits have the stratabound features, while the postmagmatichydrothermal-type deposits are mainly controlled by magmatites. The ore deposits are obviously controlled by structures, especially by the NE-NW-striking faults and the boundary structures of the volcanic basin. The ore bodies are hosted ih the Sinian,Carboniferous and Jurassic volcanic-sedimentary series. The mineralization is related to the Yanshanian granites. The marine volcanogenic ore deposits are the main prospecting objects. The prospecting targets are the margin and periphery of the volcanicbasin. The effective prospecting method is the combination of geology with geochemical exploration.