| Abstract: | The Xiaoxi Formation is well developed in two sections (Heishui, Yinjiang and Wuguxi, Shiqian), NE of Guizhou, China.This formation is composed of the sandstones, siltstones and mudstones, and preserved with the depostional structures and trace fossils. This paper focuses on the study of the sedimentary environment of the Xiaoxi Formation based on the materials from these sections. Five ichospecies are identified from two sections, including Palaeophycus isp., Rusophycus isp., Planolites isp., Gordia isp. and Phycodes isp. These trace fossils belong to the Cruziana ichofacies, Based on the depositonal structures, the ichofaces and the result of particle size analysis, the sedimentary environment of the Xiaoxi Formation of Silurian in NE of Guizhou is nearshore zone with a relativealy and stable environment under the average low tide line. |
