A buried landslide block in the section of Middle Jurassic deposits in Moscow region

Abstract

A section of the Upper Carboniferous and overlying Jurassic sediments in the area of the buried karst depression in the northwestern part of Moscow was studied. According to conodont zonality, it was revealed that, in the section of the karst depression on the Voskresensk Formation altered by karst processes, the Perkhurovo Formation directly lies. It was shown that the missing in the section Neverovo Formation is associated with the origin of landslide deformations in the Middle Jurassic (Kudinovskoye) time — the movement of a block of Perkhurovo limestones, which are located hysometrically higher on the slope of the karst paleodepression.