北淮阳东段佛子岭群新认识

本文运用构造地层学方法,通过1:5万区域地质调查,将北淮阳东段浅变质岩系佛子岭群自下而上划分为郑堂子岩组、杜岭岩组、祥云寨岩组、黄龙岗岩组、诸佛庵岩组、八道尖岩组、潘家岭岩组,整个岩系属褶叠层式地层系统,组成以潘家岭岩组为核的复式叠加向斜,其时代为晚古生代石炭—二叠纪,依其特征性的岩性组合,可以和河南信阳群及苏家河群对比。

NEW RECOGNITION OF THE FOZILING GROUP IN THE EASTERN PART OF NORTHERN HUAIYANG

By using the tectono-stratigraphic method and through 1:50000 regional geological mapping, the Foziling Group of the low-grade metamorphic rock series in the eastern part of northern Huaiyang is divided in ascending order into the Zhengtangzhi, Duling, Xiangyunzhai, Huanglonggang, Badaojian, Zhufo’ an and Panjialing Rock Formations. The whole rock series belongs to a foldedlayered stratigraphic system; forming a composite superimposed syncline with the Panjialing Rock Formation as the core. The rock series is of CarboniferousPermian age. ＆ ccording to its characteristic lithologic assemblage, it may correspond to the Shujiahe Group and Xinyang Group in Henau.