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松辽盆地是我国大型的陆相中生代盆地,在盆地东缘晚侏罗世和早白垩世地层十分发育,由下而上可以分为火石岭组、沙河子组、营城组和登楼库组。白垩纪泉头组不整合地覆盖在登楼库组或营城组之上。本文重点讨论营城组的内容、变化关系、下界和时代,因为这涉及到本区侏罗、白垩系的界限以及营城组的划分与对比问题。 对于营城组已往做过一些工作,森田义人(1942)名营城子火山岩群,观察地点为吉林省九台县火石岭—九台的李家纸房一带,其层序由下而上为(1)基底砾岩,(2)凝灰质砂岩、页岩、砾岩夹煤层,(3)石英粗面岩及安山质凝灰岩,不整合(?)覆盖于宽城子层
The Songliao Basin is a large continental Mesozoic basin in China. Late Jurassic and Early Cretaceous strata developed well in the eastern margin of the basin, and can be divided into the Huosheling Formation, Shahezi Formation, Yingcheng Formation and Denglouku Formation from the bottom up . The Cretaceous Quantou Formation unconformably overlies the Denglouku Group or Yingcheng Formation. This article focuses on the content of the Yingcheng Formation, the relationship between changes, the lower bounds and the times because it involves the boundaries of Jurassic and Cretaceous in this area and the division and contrast of Yingcheng Formation. For the Yingcheng group has done some work in the past, Morita justice people (1942) name Yingchengzi volcanic rock group, the observation site for Jilin Province Jiutai County Huoshiling - Jiutai Lee paper house area, the order from the bottom up (1) basal conglomerate, (2) tuffaceous sandstone, shale and conglomerate intercalated with coal, (3) quartz mafic and andesitic tuff, and unconformity