Title

I. V. Bigun

TYPES SILICEOUS CONCRETION IN CALCAREOUS ROCK IN THE SERPUKHOVIAN STAGE IN THE BOROVICHSKY REGION

The characterization of siliceous concretions of the Serpukhovian Stage in the Borovichsky Region in Msta river valley in the context of their morphology, material and structural features, and stages formation.
Keywords: siliceous concretions, Serpukhovian Stage, structures, petrographic analysis, electron microscopy.