贵州独山中泥盆统碎屑岩地层的遗迹化石及其沉积环境

Ichnofossils and Their Sedimentary Environment of the Middle Devonain Detrital Strata in Dushan, Guizhou Province

本文研究产自贵州独山中泥盆统碎屑岩地层（大河口组、独山组宋家桥段）中的遗迹化石，并分析了这些遗迹化石所代表的沉积环境，分属于Ｓｅｉｌａｃｈｅｒ的Ｓｃｏｙｅｎｉａ遗迹相、Ｓｋｏｌｉｔｈｏｓ遗迹相和Ｃｒｕｚｉａｎａ遗迹相。其中，独山县巴年地区独山组宋家桥段下部发现的以Ｓｃｏｙｅｎｉａ为主的遗迹化石具陆相沉积环境特征。这一发现将促进我国Ｓｃｏｙｅｎｉａ遗迹相的研究．

The study of the ichnofossils from the Middle Devonia stratigraphy of detrital rocks,that is, the Dahekou Formation and the Songjiaqiao Member of the Dushan Formation in Dushan Courty, South Guizhou province indicates that there are three ichnofacieses, Scoyenia, Skolithos and Cruziana, of the Seilacher group reflected by these trace fossils'sedimetary environment. The discovery of Scoyenia in the lower Songjiaqiao member of the Dushan Formation, representing continental environment, is undoubtly a complement to the study of Scoyenia ichnofacies in our country.