河南登封晚古生代含煤地层各煤组的古生物特征

The palaeontological characters of all groups of seams in the Late Palaeozoic coal bearing strata of Dengfeng, Henan

河南登封位于华北地台的南缘,区内石炭二叠系厚度大,出露全,分布广泛。根据含煤地层的岩性特征、旋迴规律、煤层结构和煤质差异,近千米的煤系地层共分为九个煤组(表1)。通过11条剖面数千块标本的研究和综合分析,发现9个煤组的生物化石各具特色,易于区别。

In Dengfeng County, Henan province, the Carboniferous and Permian System are widespread.The coal measures about 1000 m thick are subdivided into nine coal measures on the basis of different li-thology, cyclic deposition, coal layer texture.Basis on the intensive study of fossils of animals and plants, it has been found that the biotic aspects of every coaly groups are different.In the first coal measure marine animal fossils such as fusulinids, tetracorals, brachiopods and conodonts are plenty.Many Articulata and Pteridophyte are in the second coal measure.There is a few plant fossils in the upper part of the third.Many gigantopterids have been founded in the fourth.Lobatannularia in the fifth is rich.Few fossils are in the sixth.Lingula is rich in the seventh.In the eighth coal measure, there are a lot of gigantopterids and spicula.Fossil palm leaves arc in the nineth, but spicula and gigantopterids disappear.Because of the difference of biotic aspects between the coal measure groups, it is of vital importance to solute the problems of stratigraphic classification and correlation.