%0 Journal Article %T Re-Os Dating of Molybdenite from the Liushengdian Molybdenum Deposit in Antu Area of Jilin Province and Its Geological Significance
吉林安图刘生店钼矿床辉钼矿Re-Os同位素定年及其地质意义 %A WANG Hui %A REN Yun-sheng %A ZHAO Hua-lei %A JU Nan %A QU Wen-jun %A
王辉 %A 任云生 %A 赵华雷 %A 鞠楠 %A 屈文俊 %J 地球学报 %D 2011 %I %X The Liushengdian ore deposit is one of the porphyry molybdenum deposits recently discovered in eastern Jilin Province.Re-Os dating of six molybdenite samples collected from typical ores shows that the Re and Os values of samples vary between 9.88 and 11.37μg.g-1 and between 27.68 and 32.40ng.g-1 respectively;the model age ranges from(168.0±2.3)to(170.8±2.5)Ma,with the weighted mean age being (169.36±0.97)Ma(MSWD=0.73),and the isochron age being(185±12)Ma(MSWD=0.72).The results indicate that molybdenum mineralization took place in middle Jurassic,roughly contemporaneous with that of Daheishan and Fuanpu molybdenum deposits,which belong to the Xiao Hinggan Mountains-Zhangguangcai Mountain metallogenic belt.These ore deposits were formed by the large-scale Yanshanian metallogenic activity in the eastern part of northeastern China,influenced by the subduction of the Pacific plate.In addition,the Re content of the molybdenite suggests that the ore-forming materials might have been derived mainly from the crust with the participation of small amounts of mantle materials. %K Re-Os dating %K molybdenite %K porphyry molybdenum deposit %K Liushengdian molybdenum deposit %K Antu area of Jilin province
Re-Os同位素定年 %K 辉钼矿 %K 斑岩型钼矿 %K 刘生店钼矿 %K 吉林安图 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=1DF69A47DE80569EC8F859DF61571180&aid=0708514DFA112793465BA18F0C0D2A1F&yid=9377ED8094509821&vid=9971A5E270697F23&iid=B31275AF3241DB2D&sid=E008F9AD6D4B96EF&eid=EB8E83807F36F05B&journal_id=1006-3021&journal_name=地球学报&referenced_num=0&reference_num=71