摘要
石家铺子金矿床是岩浆期后热液叠加改造层控破碎带蚀变岩型金矿，其成矿时代为燕山早期，成矿温度１８０～３００℃．岩石中元素丰度及其演化资料表明，本矿床成矿物质来自地层，部分来自岩浆岩．断裂构造严格控制金矿体的产出，并决定了工业矿体的规模及空间定位．硫同位素组成特征表明，硫源以深源同熔岩浆热液为主，部分来自地层．氧、碳同位素组成特征反映成矿溶液以岩浆水为主。
he Shijiapuzi gold deposit,tectonically located in the north of LiaoJi rift in the north margin of North China platform,is the type of altered rock of stratabound fracture zone superimposed and reformed by postmagmatic hydrothermal. The deposit was formed during early Yanshanian period.The metallogenic temperature ranges from 180 to 300℃.The oreforming material is derived from strata,partly from magmatic rocks.The ore bodies are controlled by faults. The S isotopic composition shows that it is derived mainly from plutonic syntectic magma,partly from strata.The O and C isotopic composition indicates that the oreforming solusion is mainly magmatic water,mixed with a little metamorphic and meteoric water.
关键词
金矿床
地质特征
成矿模式
吉林省
石家铺子
gold deposit geological characteristics metallogenic model Jilin Province
