地质学报2016，Vol.90Issue(2)：231-239,9.
广东潮安飞鹅山钨钼多金属矿床辉钼矿Re-Os 同位素定年
Molybdenite Re-Os Isotopic Age of Fei’eshan Tungsten and Molybdenum Polymetallic Deposit in Chao’an,Guangdong
摘要
Abstract
The Fei ’eshan tungsten and molybdenum polymetallic deposit located in the eastern region of Guangdong province is a prospecting potential deposit newly discovered.Intense tectonic and magmatic activities are frequent during Yanshanian in this area.The ore bodies occur mainly in granite and greisens, which controlled by faults of NE and SN and the types of deposit contain quartz vein type and greisens type.Re-Os isotopic dating of six molybdenite samples collected from the main ore body in Fei’eshan deposit show that a)the model age is from 136.5Ma to 142.3Ma,b)the isochron age is 142.6 ±6.3Ma, and c)weighted average of model age is 139.4±2.2Ma.It can thus be considered that the deposit formed in the third stage of Early Yanshanian and ore-forming age is consistent with the monzonitic granite in orefield.According to the rhenium content and the ratio of rhenium and osmium of molybdenum samples, origin of the ore-forming materials of the deposit derived from the crust.Besides,through combined with some isotopic ages of other deposits in adjacent area,it can be inferred that the metallogenic materials of the Fei’eshan deposit originated from the highly evolved melting type Yanshanian granite mass.关键词
Re-Os 同位素年龄/辉钼矿/成矿年龄/钨钼矿床/飞鹅山/广东潮安Key words
Re-Os isochron age/molybdenite/ore-forming age/tungsten and molybdenum polymetallic deposit/Fei’eshan deposit/Chao’an Guangdong引用本文复制引用
李海立,肖惠良,范飞鹏,陈乐柱,刘建雄,陈叙涛..广东潮安飞鹅山钨钼多金属矿床辉钼矿Re-Os 同位素定年[J].地质学报,2016,90(2):231-239,9.基金项目
本文为广东厚婆坳铜锡多金属矿整装勘查区关键性基础地质研究之找矿预测模型与找矿预测研究之找矿预测模型构建与找矿预测研究专题（项目编号12120114015701）项目资助的成果。 （）
