【摘要】 内蒙古赤峰敖汉旗艮兑营子附近二叠系地层比较发育,下二叠统三面井组为一套陆源碎屑岩组合,在区域上较为特殊。在野外实测剖面的基础上,根据岩石组合特征、组构特征、垂向变化规律,将三面井组划分为一个Ⅲ级层序,两个Ⅳ级层序,六个Ⅴ级层序(高频旋回层序)。更多还原

【Abstract】 The Permian strata are well exposed in Genduiyingzi area of Aohan banner. The Sanmianjing Formation is a set of terrigenous clastic rock combination. Based on the rock assemblage,fabrics and vertical variation regulation,one third-order sequence can be recognized,including two forth-order sequences and six fifth-order sequences( high frequently cyclic sequence).更多还原