河南舞阳赵案庄型铁矿成矿特征及矿床成因

The iron deposit of Zaoanzhnang type occurs in the ultrabasie unit od a late Archaean greenstone belt. It is a late magmatic apatite-titanomagnetite deposit, subusequently enriched by hydrothermal superimposition and regional metamorphism. This deposit is extremely complex in mineralogy, containing 87 kinds of minerals charaeteristie of ultrabasie-alkaline complexes. Mineralization of iron, titanium and phosphorus took place mainly during the magmatic stage, while that of uranium and thorium during the pnenmatolytic-hydrothermal stage.     

广东玉水矿田铜多金属矿床成矿特征及成因

玉水矿田铜多金属矿床具明显后生特点，受燕山期形成的北东－北北东向断裂构造控制，与燕山期的辉绿岩关系密切。通过稳定同位素研究，成矿物质和成矿热液主要来源于与辉绿岩同源的岩浆热液。矿床成因类型为与燕山期辉绿岩有关的岩浆期后中温热液充填交代矿床。