Metallogenic Age of the Super-Large Aktogai Porphyry Copper w:st="on">w:st="on">Deposit, w:st="on">Kazakhstan, and Its Exhumation History

详细信息   

• 责任者：Li Yong (Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Chen Xuanhua
• 刊名：Acta Geologica Sinica
• 出版年：2012
• 卷期：86(2)
• 关键词：斑岩铜矿床 ; porphyry copper deposit ; 哈萨克斯坦 ; Kazakhstan
• 页码：p.295-306
• 图表：7 illus., 5 tables, 35 refs.
• 分类号：1001
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

摘要

 
    

The super-large Aktogai porphyry copper deposit is one of three porphyry copper deposits in the Aktogai ore field in the Balkhash metallogenic belt, w:st="on">Kazakhstan, w:st="on">Central Asia. In this paper, zircon SHRIMP, ⁴⁰Ar/³⁹Ar and fission track (FT) dating reveals the whole thermal history from the intrusion of plutons and porphyry copper metallogenesis, and regional cooling, to the exhumation of the deposits. Apatite FT dating of granitoids yields low temperature cooling ages of 91 Ma and 68.0 Ma, suggesting that the Aktogai ore field had undergone the differential uplifting and exhumation resulting from regional tectonic activity during the Late Cretaceous.