您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 3    June 2002

[PDF Download]    [Flash Online]

    

Ar39/Ar40 dating of three typical gold
deposits in southern Qinling and
its implication
WANG Dong-bo(汪东波)1, 2,SHAO Shi-cai(邵世才)2,
FENG Jian-zhong(冯建忠)2,WANG Xue-ming(王学明)2

1. Institute of Geology, Chinese Academy of Geological Sciences,
Beijing 100027, China;
2. Beijing Institute of Geology for Mineral Resources,
Beijing 100012, China

Abstract:Three types of gold deposits,which are the disseminated ore,auriferous quartz vein,and ore hosted in ductile shear zone have been identified in southern Qinling. The dating of the Baguamiao gold deposit in Fengxian, Xiaogouli gold deposit in Chengxian and Shangjiagou gold deposit in Kangxian gave rise to plateau age s (131.91±0.89)Ma, (197.45±1.13)Ma and (161.59±0.56)Ma respectively, consistent with the isochron ages. It is indicated that the metallization occurred in late Indosinian and early Yanshannian. The Ar39/Ar40 dating affirms their metal logenicages ranging from (131.91±0.89)Ma to (197.45±1.13)Ma which couple with the epoch in which the continent-continent collision and intracontinent orogene took place. Consequently, it is suggested that the collision-orogene, magmatic intrusion and location of gold deposits constitute an organic successive process. In line with the tectonic event, the large-scale metallization symbolizes the different representation of the same continental dynamics in the evolution of regional tectonics. 

 

Key words: southern Qinling; gold deposit; plateau age; isochron age

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn