SHRIMP U-Pb Dating of Zircon from the Fenghuangshan Quartz Monzodiorite and Granodiorite in Tongling Area, Anhui Province and Its Geological Implication

• 责任者：Qu Hongying (Institute of Mineral Resources ; China Academy of Geological Sciences ; Beijing 100037 ; China) ; Pei Rongfu
• 刊名：Journal of Jilin University
• 出版年：2010
• 卷期：40(3)
• 关键词：石英二长闪长岩 ; quartz monzodiorite ; 花岗闪长岩 ; granodiorites ; 铀—铅计时 ; U-Pb dating ; 安徽 ; Anhui Province
• 页码：p.581-590
• 图表：4 illus., 2 tables, 31 refs.
• 分类号：0801
• issnNo：ISSN1671-5888
• isbnNo：CN22-1343/P

In order to study the magmatic evolution and relationship between magmatism and mineralization, the SHRIMP U-Pb dating of zircon in Fenghuangshan quartz monzodiorite and granodiorite in Tongling area, Anhui Province are carried out. The emplacing age of the Fenghuangshan intrusion is the Late Jurassic. Moreover, the molybdenite Re-Os isochrone age is accordant with that of the granodiorite and older than the age of quartz monzodiorite. The copper mineralization has the closer relationship with the granodiorite and they are formed contemporaneously. Isotopic data indicate that the mineralization is related to the deep fluids derived from mantle magma differentiation.