辽西金(金岭寺)—羊(羊山)盆地北部陆相红层土城子组非常发育,沉积物具明显的旋回性。根据岩石组合、组构、沉积相及环境变化等分析,本区土城子组自下而上大体可划分为1个Ⅱ级层序、2个Ⅲ级层序、26个Ⅳ级层序。在区域构造控制下,金—羊盆地北部在土城子期经历了两次湖扩张—湖萎缩过程,分别对应下部的冲积扇-干化湖、中部的冲积扇-风成沙漠和顶部的干化湖沉积。 The Liaocheng gold (Jinling Temple) - sheep (Yangshan) basin in the terrestrial red layer of Tuchengzi very well, the sediment with a clear cycle. According to the analysis of rock assemblage, structure, sedimentary facies and environment change, the Tuchengzi Formation in this area can be divided into one grade Ⅱ, two grade Ⅲ and 26 grade Ⅳ from bottom to top. Under the control of regional tectonics, the northern part of Jin-Yang basin underwent two lake expansion-lake shrinkage processes in the Tucheng sub-stage, corresponding to the lower alluvial fan-dry lake, alluvial fan in the central part-aeolian desert and the top of the desertification Lake deposition.