内蒙古巴林左旗五香营子一带中生代地层划分研究

A Study on Stratigraphic Classification of Mesozoic and Mesozoic in Inner Mongolia

内蒙古巴林左旗五香营子一带中生代地层十分发育,前人将其划分为中侏罗世新民组、晚侏罗世满克头鄂博组、玛尼吐组和白音高老组。通过对该套地层的岩石地层、古生物化石、同位素测年等资料的研究,认为应将原满克头鄂博组顶部的沉积岩和玛尼吐组一段单独划出,暂定名为海力图组,并以该组的顶界作为侏罗系与白垩系的界线。

Inner Mongolia bahrain left flag spiced Mesozoic strata sub area development, previous group can be divided into middle Jurassic xinmin, full, head of the bayan group in the middle Jurassic, mani group and high white tone old group. The author, through the strata of rock strata, ancient fossils and isotopic dating data, makes a research of the original head of bayan group at the top of the sedimentare- rocks into a single one. It also discusses about the top boundary to the group as the boundare- between Jurassic and cretaceous.