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    李杰, 宋明春, 王美云, 李世勇, 周明岭, 倪师军, 张成江, 丁正江, 岳跃破. 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.
    引用本文: 李杰, 宋明春, 王美云, 李世勇, 周明岭, 倪师军, 张成江, 丁正江, 岳跃破. 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 Jie, SONG Ming-chun, WANG Mei-yun, LI Shi-yong, ZHOU Ming-ling, NI Shi-jun, ZHANG Cheng-jiang, DING Zheng-jiang, YUE Yue-po. 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.
    Citation: LI Jie, SONG Ming-chun, WANG Mei-yun, LI Shi-yong, ZHOU Ming-ling, NI Shi-jun, ZHANG Cheng-jiang, DING Zheng-jiang, YUE Yue-po. 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.

    胶东尚家庄钼矿床Re-Os同位素年龄及其地质意义

    The molybdenite Re-Os age and genetic analysis of the Shangjiazhuang Mo deposit in Jiaodong area

    • 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。

       

      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.

       

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