【摘要】 铜官山铜矿床是长江中下游重要的铁铜矿床之一,按其产状可划分为上、中、下部矿体,对上、中部矿体中石榴子石的成因矿物学研究,表明其成因均为接触交代成因,同时也证明中部矿体是在正常沉积基础上由燕山期岩浆热液叠加改造形成的层控夕卡岩型矿床。更多还原

【Abstract】 The Tongguanshan copper deposit is one of the major iron and copper deposits in the middle and lower valley of the Yangtze River. According to the location of occurrence, its orebodies might be divided into the upper , middle and lower parts. Preliminary research on the genetic mineralogy of the garnets from the upper and middle orebodies shows that they are of contact-metasomatism origin and it is proved that the middle part is a stratabound skarn deposit, formed by the superposition and reform of Yanshanian ore-bearing magmatic hydrothermal solutions on the normal sedimentary basis.更多还原