Division of Volcanic Cycles and Stages of the Yingcheng Formation of the Songliao Basin-Take the Cross Sections at the Margin and the Boring Holes as Examples

HUANG Yu-long, WANG Pu-jun, MEN Guang-tian, TANG Hua-feng

Journal of Jilin University(Earth Science Edition) . 2007, (6): 1183 -1191 .