Middle Eocene in the Sołokija Graben on Roztocze Upland

Abstract

Lithological-mineralogical characteristics of quartz-glauconitic sands as well as physical features and chemical composition of glauconite from new stand on Roztocze are presented. X-ray diffraction showed disordered structure of glauconite as a mixture of illite and smectite. The potassium-argon age of glauconite was determined. Development of Sołokija Graben look place in the Laramian and the end-Eocene tectonic phases.