Abstract：It has become a common understanding that the Cretaceous volcanic rocks (Zhanglaogongtun Formation) overlap the Yixian Formation and other older strata in Western Liaoning Province. However, the horizon and age of the volcanic rocks are in dispute. There are four major viewpoints: 1) above the Sunjiawan Formation:2) between the Sunjiawan and Fuxin formations; 3) between the Fuxin and Jiufotang formations; and 4) between the Shahai and Jiufotang formations. According to the sequence of strata, regional stratigraphic correlation and isotopic age data, the Zhanglaogongtun Formation should occur between the Sunjiawan and Fuxin formations, overlapping the Yixian, Jiufotang, Shahai and Fuxin formation and other older strata. The isotopic age ranges 97-106 Ma, indicating a late Early Cretaceous age.
郑月娟, 张健, 陈树旺, 丁秋红, 李永飞, 王杰, 郜晓勇, 苏飞, 李晓海, 刘忠诚. 辽西地区白垩纪张老公屯组火山岩的层位及时代[J]. 地质与资源, 2012, 21(1): 77-80.
ZHENG Yue-juan, ZHANG Jian, CHEN Shu-wang, DING Qiu-hong, LI Yong-fei, WANG Jie, GAO Xiao-yong, SU Fei, LI Xiao-hai, LIU Zhong-cheng. THE HORIZON AND AGE OF THE CRETACEOUS ZHANGLAOGONGTUN FORMATION IN WESTERN LIAONING PROVINCE. GEOLOGY AND RESOURCES, 2012, 21(1): 77-80.
2012, Vol. 21 
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