• 责任者：Geng Xianlei (Faculty of Earth Sciences ; China University of Geosciences ; Wuhan 430074 ; China) ; Gao Shan
• 刊名：Earth Science
• 出版年：2011
• 卷期：36(3)
• 关键词：地壳生长 ; crustal growth ; 铀—铅计时 ; U-Pb dating ; 铪同位素 ; hafnium isotopes ; 华北地区 ; North China ; 苏鲁造山带 ; Su-Lu Orogenic Belt
• 页码：p.483-499
• 图表：10 illus., 98 refs.
• 分类号：0400
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

The Daqing River, Chaobai River and Liao River are characterized by two age peaks of 2.4~2.5 Ga and 1.8~1.9 Ga, which indicate contributions from the eastern North China craton. Some 100~500 Ma zircons from the Liao River with positive εHf(t) values and young Hf model ages, suggesting Phanerozoic crustal growth. In contrast, U-Pb ages of the Dagu River and Jiaolai River, which run through the Sulu orogen, are more complicated and characterized by age groups of 2.4~2.5 Ga, 1.8~1.9 Ga and 700~800 Ma, implying a mixed provenance of eastern North China craton and Yangtze craton. The Lu-Hf isotope compositions of the Daqing River, Chaobai River and Liao River demonstrate the dominant growth at 2.4-3.0 Ga, with a peak at 2.6~2.7 Ga and minor growth during 1.3~2.3 Ga.