Lithological characteristics of the pre-greben' regional unconformity of the Sizimcelebeyshor creek of the Chernov uplift

A lithological description of natural outcrops of Upper Silurian rocks in the section of the Sizimcelebeyshor creek of the Chernov uplift has been presented. Based on the results of the studies, the sedimentation gap at the end of Gerd'yu superhorizon is characterized. We consider breccias and interlayers of red-green plastic eluvial clays associated with the unconformity as occurrences of the Silurian paleocarst. This factor should be taken into account in the local forecast of zones with improved reservoir properties for carbonate rocks. The conducted studies allow significantly replenishing the sedimentological and chronostratigraphic characteristics of this area of work, which in the future can contribute to solving problems of regional correlation, paleofacial reconstructions and optimization of geological exploration.