胶东尚家庄钼矿床Re-Os同位素年龄及其地质意义
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

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
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    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.

    参考文献
    相似文献
    引证文献
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(in Chinese with English abstract).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2013-10-22
  • 出版日期:
温馨提示:建议您使用Chrome、火狐、IE最新版本 ,当您的浏览器版本过低,可能会影响部分功能正常使用。
关闭