华北克拉通南缘五佛山群沉积时代和物源区分析_碎屑锆石U_Pb年龄和Hf同位素证据.pdf

第 41 卷 第 4 期 Vol.41, No.4, 326~342 2012 年 7 月 GEOCHIMICA July, 2012 : U-Pb Hf 1,2 1*,3 1,2 1,2 胡国辉 , 赵太平 , 周艳艳 , 杨 阳 (1. , 510640; 2. , 100049; 3. , 710069) 摘 要: , TTG , - , , , - , , LA-ICP-MS U-Pb , 207Pb/206Pb (1732±11) Ma (1655±22) Ma, , -207Pb/206Pb 2816~1655 Ma, 2100~1800 Ma (60%), (1.93±0.10) Ga, 2500~2100 Ma ( 24%), , , U-Pb 1.93 Ga -, ( 1.91 Ga) ε 207 206 Hf(t)–14.3~4.6, Hf 2363~3672 Ma , Pb/ Pb , Hf 2.50 Ga 2.80 Ga , 关键词: ; ; U-Pb ; ; 中图分类号: P597 文献标识码: A 文章编号: 0379-1726(2012)04-0326-17 Depositional age and provenance of the Wufoshan Group in the southern margin of the North China Craton: Evidence from detrital zircon U-Pb ages and Hf isotopic compositions HU Guo-hui1,2, ZHAO Tai-ping1*,3, ZHOU Yan-yan1,2 and YANG Yang 1,2 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 2. Graduate University of Chinese Academy of Sci