松辽盆地东缘营城盆地层序地层划分与地层对比

Stratigraphic division and correlation of Yingcheng Basin,eastern part of Songliao Basin

营城盆地位于松辽盆地东缘,其地层可与松辽盆地地层对比。营城盆地层序(三级)地层应与松辽盆地Ⅰ-VI和IX、X层序(火石岭组、沙河子组、营城组、登娄库组和泉头组)地层相对应,营城盆地地层应该划分为侏罗系上统火石岭组(J3h);白垩系下统沙河子组(k1sh)、营城组(k1y)、泉头组(k1q);第四系(Q)。主要可采工业煤层产在沙河子组。

Yingcheng Basin is located in the east margin of the Songliao Basin,the strata can contrast with the Songliao Basin strata.Strata of the Yingcheng Basin sequences can correspond the Songliao Basin-VI and IX of the X sequence（Huoshiling Formation,Shahezi Formation,Yingcheng Formation,Denglouku Formation and Quantou Formation） strata.Yingcheng Basin formation should be divided into the upper Jurassic system Huoshiling Formation（J3h）,lower Cretaceous system Shahezi Formation（k1sh）,Yingcheng Formation（k1y） Quantou Formation（k1q）.The major industry coal seam occurred in Shahezi Formation.