漠河盆地上侏罗统层序地层格架

UPPER JURASSIC SEQUENCE-STRATIGRAPHIC FRAMEWORK OF THE MOHE BASIN

漠河盆地出露了较完整的上侏罗统 ,6条绣峰组、二十二站组、额木尔河组及开库康组露头剖面层序地层分析和不同剖面间层序对比结果表明 ,漠河盆地从绣峰组到开库康组在垂向上发育了 36个三级层序 ,构成绣峰、二十二站、额木尔河和开库康 4个超层序。门都里东山绣峰组剖面和二十二站组剖面出露了较完整的绣峰和二十二站超层序 ,瓦拉干—二十二站绣峰组剖面出露的是绣峰超层序中上部和二十二站超层序底部地层 ,二十二站北山二十二站组剖面出露的是二十二站超层序中上部和额木尔河超层序下部地层 ,小丘古拉河额木尔河组剖面出露的是额木尔河超层序中上部和开库康超层序下部地层 ,开库康乡开库康组剖面出露的是开库康超层序的上部地层。

The sequence stratigraphic analysis and sequence correlation of the 6 Upper Jurassic outcrop sections, i.e. the very well developed, Xiufeng, Ershierzhan, Emuerhe and Kaikukang Formations, indicate that from Xiufeng to Kaikukang Formation, there are 36 sequences developed in the Upper Jurassic of Mohe Basin, the 36 sequences are composed of 4 super sequences——Xiufeng, Ershierzhan, Emuerhe and Kaikukang. Mendulidongshan section are made up of 2 whole Xiufeng and Ershierzhan Super sequences. Walagan—Ershierzhan section shows the strata of the middle upper parts of the Xiufeng Super sequence and the lower part of Ershierzhan Super sequence, Ershierzhanbeishan section shows the strata of middle upper parts of Ershierzhan Super sequence and the lower part of Emuerhe Super sequence, Xiaoqiugulahe section showing the strata of middle upper part of Emuerhe Super sequence and the lower part of Kaikukang Super sequence, and Kaikukang section near Kaikukang village showing the strata of upper parts of Kaikukang Super sequence.