四川代隆金矿岩脉与金成矿的关系

Relationship Between Dike and Gold Mineralization in Dailong Gold Mine,Sichuan Province

代隆金矿床是近年新发现的一个微细浸染型金矿床,产于三叠系新都桥组,发现金矿体2条,多条金矿化体,主要容矿岩石为花岗斑岩。通过对岩脉与矿(化)体时间关系、空间关系及其成因关系的讨论,认为岩浆活动在金矿成矿过程中不仅提供了热能,还提供了成矿物质和容矿岩石,得出代隆金矿花岗斑岩脉是成矿的有利部位,是区内找矿的一个重要标志。总结区内矿化花岗斑岩脉内金矿化的特点,以期为提高找矿效率扩大矿区找矿规模提供依据。

Dailong gold deposit is a micro-disseminated gold deposit discovered in recent years and it is formed in Xinduqiao Group during the Triassic Period.There are two gold orebodies and many mineralization orebodies,ore rock of which is mainly granite porphyry.The time relationship,spatial relationship and genetic relationship between dike and ore deposit and also granite porphyry characteristics are discussed,and the results show that magmatic activity provides not only heat energy but also ore-forming materials and ore rock during the process of gold mineralization.Granite dike is an advantageous position which is an important symbol of prospecting in this area,it helps to improve the efficiency of prospecting and to expand mining area.