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引用本文:李 杰1 宋明春2 王美云3 李世勇4 周明岭5 倪师军6 张成江7 丁正江8 岳跃破8. 胶东尚家庄钼矿床Re-Os同位素年龄及其地质意义[J]. 中国地质, 2013, 40(5): 1612-1621.
LI Jie1, SONG Ming-chun2, WANG Mei-yun3, LI Shi-yong4, ZHOU Ming-ling5, NI Shi-jun6, ZHANG Cheng-jiang7, DING Zheng-jiang8, YUE Yue-po8. The molybdenite Re-Os age and genetic analysis of the Shangjiazhuang Mo deposit in Jiaodong area[J]. Geology in China, 2013, 40(5): 1612-1621(in Chinese with English abstract).
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胶东尚家庄钼矿床Re-Os同位素年龄及其地质意义
李 杰1 宋明春2 王美云3 李世勇4 周明岭5 倪师军6 张成江7 丁正江8 岳跃破81,2,3,4,5,6,7,8
1.石家庄经济学院资源学院,河北 石家庄 050031;2.山东省地质矿产勘查开发局,山东 济南 250013;3.石家庄经济学院水资源与环境学院, 河北 石家庄 050031;4.山东省物化探勘查院,山东 济南 250013;5.山东省第六地质矿产勘查院,山东 威海 264209;6.6.成都理工大学地球化学系,四川 成都 610059;7.7.都理工大学地球科学学院,四川 成都 610059;8.8.山东省第三地质矿产勘查院,山东 烟台 264000
摘要:
提要:尚家庄钼矿床产于燕山晚期伟德山超单元斑状花岗闪长岩中,受岩体内部裂隙构造控制,呈NW走向,主矿体呈似层状、大脉状产出,具分支复合、膨胀夹缩等特点。3件辉钼矿Re-Os同位素测年结果表明,模式年龄为(115.5±1.6)Ma~(117.6±1.6)Ma,平均年龄为(116.4±1.6)Ma,与胶东金矿大规模成矿的时代和赋矿围岩——伟德山超单元营盘单元的成岩时代一致,说明胶东地区存在与金成矿同期的钼矿成矿作用。
关键词:  尚家庄钼矿  Re-Os同位素年龄  伟德山超单元  成矿作用  胶东金矿
DOI:
分类号:
基金项目:山东省地质矿产勘查开发局科研项目(KY201004)资助。
The molybdenite Re-Os age and genetic analysis of the Shangjiazhuang Mo deposit in Jiaodong area
LI Jie1, SONG Ming-chun2, WANG Mei-yun3, LI Shi-yong4, ZHOU Ming-ling5, NI Shi-jun6, ZHANG Cheng-jiang7, DING Zheng-jiang8, YUE Yue-po81,2,3,4,5,6,7,8
1. College of Resources, Shijiazhuang University of Economics, Shijiazhuang 050031, Hebei, China;2. Shandong Bureau of Geology and Mineral Resources, Ji’nan 250013, Shandong, China;3. Scholl of Water Resources and Environment, Shijiazhuang University of Economics, Shijiazhuang 050031;4. Geophysics and Geochemistry Research Institute of Shandong Province, Ji’nan 250013, Shandong, China;5. Shandong 6th Exploration Institute of Geology and Mineral Resources, Weihai 264209, Shandong, China;6.6. Geochemistry Department, Chengdu University of Technology, Chengdu 610059, Sichuan, China;7.7. College of Earth Science, Chengdu University of Technology, Chengdu 610059, Sichuan, China;8.8. Shandong 3rd Exploration Institute of Geology and Mineral Resources, Yantai 264000, Shandong, China
Abstract:
Abstract:The Shangjiazhuang Mo deposit is hosted in the porphyritic granodiorite which belongs to Weideshan Late Yanshanian ultra unit. It is controlled by the fractures in the interior of the magmatic body and in NW direction. The main ore bodies assume stratoid and large vein forms, and are characterized by branching and recombination as well as expansion and pinch-out. Re-Os dating of three molybdenite separates from ores has yielded weighted ages (115.5±1.6)Ma~(117.6±1.6)Ma, and a weighted mean age of (116.4±1.6)Ma, implying that the metallogenic epoch of Mo is nearly identical with the large-scale metallogenic epoch of Au in Jiaodong area, and nearly the same as the diagenetic epoch of their country rock—Yingpan unit of Weideshan super unit. It is proved that there existed a series of Au and Mo ore-forming processes which occurred almost in the same metallogenic epoch and were related to Weideshan granite in Jiaodong area.
Key words:  Shangjiazhuang Mo deposit  Re-Os isotope age  Weideshan ultra unit  metallogenesis  gold deposits in Jiaodong area