河南白石坡银矿区花岗斑岩中锆石的SHRIMP U-Pb年龄及其地质意义
中图分类号:

P588.3

基金项目:

中国地质调查局项目“我国西部重要成矿区带矿产资源潜力评估”(编号1212010535804),“中国成矿体系综合研究”(编号1212010634002),“我国重要矿产和区域成矿规律研究”(编号1212010633903)资助成果


SHRIMP U-Pb Age of Zircons from Granitic Porphyry in the Baishipo Silver Deposit, Henan and Its Geological Significance
Author:
  • 摘要
  • | |
  • 访问统计
  • | |
  • 相似文献 [20]
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    河南罗山县涩港镇白石坡银矿床是大别地区重要的银矿床之一,与区内中生代岩浆活动有着密切的时空、成因联系。本文应用SHRIMP方法对白石坡银矿区花岗斑岩中的锆石进行了U-Pb年龄测定,表明花岗斑岩形成于142.0±4.3Ma,这一年龄与附近花岗岩基及陈棚组火山岩的形成时代一致,反映它们是中生代同一岩浆成岩系统的产物,也记录了与银矿成矿作用有关的岩浆活动的时代。该区斑岩型钼矿、浅成火山热液型(金)银矿及膨润土等非金属矿具有密切成因联系,同属与中生代岩浆活动有关的矿床成矿亚系列。

    Abstract:

    The Baishipo Ag deposit, located in Luoshan County of Henan Province, is an important silver deposits related to Mesozoic magmatism temporal-spatially and genetically. A U-Pb age of zircons (140.6Ma) from the ore-bearing granitic porphyry in the Baishipo silver deposit, dated by the SHRIMP II method, indicates that the ore-bearing granitic rocks formed at the same stage of a regional granitic batholith. That means the silver mineralization might happen in the Mesozoic and have a genetic relationship with granitic magmatism. All of the porphyry-type Mo deposits, epithermal-type Au-Ag deposits and bentonite deposits can be classified as a metallogenetic subseries of mineraldeposits originally related to Mesozoic magamtism.

    参考文献
    引证文献
    引证文献 [12]
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

李厚民 王登红 张冠 陈毓川 王彦斌 张长青 代军治.2007.河南白石坡银矿区花岗斑岩中锆石的SHRIMP U-Pb年龄及其地质意义[J].地质学报,81(6):808-813.
LI Houmin, WANG Denghong, ZHANG Guan, CHEN Yuchuan, WANG Yanbin, ZHANG Changqin, DAI Junzhi.2007. SHRIMP U-Pb Age of Zircons from Granitic Porphyry in the Baishipo Silver Deposit, Henan and Its Geological Significance[J]. Acta Geologica Sinica,81(6):808-813.

复制
分享
文章指标
  • 点击次数:1674
  • 下载次数: 1806
  • HTML阅读次数: 13
  • 引用次数: 0
历史
  • 最后修改日期:2007-01-19