华南志留纪钼的矿化_白石顶钼矿锆_省略_b年龄和辉钼矿Re_Os年龄证据_李晓峰.pdf

2009 8 28 4 Aug. , 2009 M INERAL DEPOSITS 28 ( 4) : 403~ 412 :0258-7106 (2009) 04-0403-10 : S RIMP X U-Pb Re-Os 1,2 2 3 3 4 2 李晓峰 ,冯佐海 ,李容森 , 唐专红, 屈文俊 ,李军朝 ( 1 , 100037; 2 , 541004; 3 , 541003; 4 , 100037) , ( )-() ,, , , S RIMP U-Pb Re-Os,, ( ) S RIMP U-Pb ( 42414 ? 51 6) Ma, S RIMP U-Pb (428? 4)Ma6 Re-Os( 42416? 517) Ma, , - ; ;; ;; ; : 618.65 : A Silurian Mo mineralization at Baishiding molybdenum deposit in northern Guangxi: Constraints from zircon SHRIMP -Pb andmolybdenite Re-Os ages 1, 2 2 3 3 4 2 LI XiaoFeng , FENG Zuo ai , LI RongSen , TANG Zhuan ong , QU WenJun and LI JunZhao ( 1Institute of Mineral Resources, ChineseAcademy of Geological Sciences, Beijing 100037, China; 2 College of Geoscience, Guilin University of Technology, Gulin 541004, Guangxi, China; 3 Institute of Guangxi Regional Geological Survey, Guilin 541003, Guangxi, China; 4 National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing 100037, China) Abstract The Baishiding molybdenum deposit is located in northern Guangxi, and its ore bodies occur mainly as quartz+ molybdeniteveins in Guiling biotite monzograniteand epimetamorphicneriticfacies clastic rocks in Nan- hua System. Ore minerals are composed of molybdenite, pyrite, chalcopyrite and scheelite. The Mo grade ranges from 011% to013% with an averageof 0112%. With thedistance from thequar