• 责任者：Zheng Yuejuan (Shenyang Institute of Geology and Mineral Resources ; Shenyang 110034 ; China) ; Li Yongfei
• 刊名：Geology and Resources
• 出版年：2011
• 卷期：20(3)
• 关键词：英安岩 ; dacites ; 氩—40／氩—39 ; Ar-40／Ar-39 ; 辽宁 ; Liaoning Province
• 页码：p.167-171
• 图表：2 illus., 2 tables, 22 refs.
• 分类号：0801
• 出版序号：249
• issnNo：ISSN1671-1947
• isbnNo：CN21-1458/P

The Yixian Formation in the Jianchang basin, Liaoning Province consists of a series of volcanic-sedimentary rocks, which can be divided into two members from bottom to top. Biostratigraphically, the Luojiagou bed may be correlated to the Jianshangou (Zhuanchengzi) bed of Yixian Formation in Yixian-Beipiao area. The ⁴⁰Ar/³⁹Ar stepwise heating dating of the dacite sample at the upper part of the Yixian Formation in Jianchang basin yields an age of 120 Ma, which agrees with previous results obtained by K-Ar, Ar-Ar and U-Pb methods for the top of volcanic rocks of the Yixian Formation in the Yixian area.oft-com:office:office" />