欢迎访问《金属矿山》杂志官方网站,今天是 分享到:
×

扫码分享

金属矿山 ›› 2013, Vol. 42 ›› Issue (06): 93-95+103.

• 地质与测量 • 上一篇    下一篇

园珠顶铜钼矿床成矿流体特征及成矿机制

楚克磊1,余长发2,林良庄3,林秀广3   

  1. 1.中国地质科学院矿产资源研究所;2.中国地质大学地球科学与资源学院;3.广东省地质勘查局719地质大队
  • 出版日期:2013-06-17 发布日期:2013-08-09
  • 基金资助:

    * 中国地质大调查项目(编号:1212011120831)。

Characteristics of Ore-forming Fluids and Forming Mechanism of Yuanzhuding Cu-Mo Ore Deposit

Chu Kelei1,Yu Changfa2,Lin Liangzhuang3,Lin Xiuguang3   

  1. 1.Institute of Mineral Deposits,Chinese Academy of Geological Sciences;2.Faculty of Earth Science and Resources,China University of Geosciences;3.No.719 Geological Team,Guangdong Bureau of Geological Exploration
  • Online:2013-06-17 Published:2013-08-09

摘要: 通过对园珠顶斑岩型铜钼矿床地质特征的详细观察,结合对各阶段包裹体及H、O同位素的测试结果,认为成矿流体主要来自于岩浆,并与少量大气降水相混合。园珠顶矿床中辉钼矿与黄铜矿产状及成因机制不同,辉钼矿主要来自于成矿斑岩体,大气降水的参与以及钾化蚀变作用是导致辉钼矿沉淀的主要原因,而黄铜矿应为成矿流体长时间与围岩交代的产物。

关键词: 园珠顶, 斑岩, 流体包裹体, H-O同位素

Abstract: Through the detailed observation of the geological characteristics of Yuanzhuding porphyry Cu-Mo deposit,and combining with the tests on the inclusions at each stage and H,O isotope,it is considered that the ore-forming fluids mainly come from the magma,and are mixed with small amounts of atmospheric precipitation.In Yuanzhuding deposit,the occurrence and its ore-forming mechanism of molybdenite are different from that of chalcopyrite.Molybdenite is mainly from the porphyry ore-body,and the atmospheric precipitation as well as the K-metasomation is the main reason for molybdenite precipitation.While chalcopyrite should be the product under the metasomatism of ore-forming fluids with surrounding rock for a long period of time.

Key words: Yuanzhuding, Porphyry rocks, Fluid inclusion, H-O isotope