摘要
猫岭-王家崴子金成矿带是辽东金矿集中区的重要亚区之一。在阐述成矿带及金矿床地质特征的基础上,通过对所收集的 20个铅同位素组成数据的分析与讨论,认为猫岭-王家崴子金成矿带铅同位素演化在一个封闭系统内进行,各类型金矿床具同源异生的特点,即成矿物质均来源于辽河群地层,但在成矿时代、成矿作用、矿床成因等方面有所差异。
Maoling-Wangjiawaizi gold metallogenic belt is one of important concentration areas of Liaodong gold metallogenic belts. The characteristics of the belt and three typical deposits:Maoling,Wangjiawaizi and Jinchanggou gold deposits,and the analysis on 20 lead isotope data indicate that the lead isotopes evolved in a closed system and all types of the deposits in the gold metallogenic belt were congenetic and allochthonous,that is,their metallogenetic materials all came from Liaohe Group, but the metallogenetic epoch, oreforming process and the genesis of the deposits were different.
关键词
金成矿带
铅同位素
地球化学
金矿床
成矿物质
Maoling-Wangjiawaizi
gold metallogenic belt
lead isotope
geochemistry