Wgłębna budowa geologiczna na wschód od Krakowa

Abstract

THE STRUCTURE OF THE DEEP SUBSTRATUM IN THE REGION EAST OF CRACOW

The oldest deposits here considered are referable to the Precambrian and the Early Paleozoic. They are strongly tectonically disturbed and were probably involved in the Assyntian and Caledonian movements. They are discordantly overlaid by Devonian and Carboniferous deposits which formed several sigmoidally directed structures as a result of the Bretonnian and Asturian phase. The central part of the sigmoid was a resistance centre which very substantially affected the limit of the transgression both from West and East as well as the development of the deposits, from the Zechstein through the Turonian. The entire structural system was covered by the Senonian transgression and uniformalised by the Laramide tectonics as the south-western monoclinal limb of the Nida depression. The Miocene sediments form a continuous veiling cover. In result of the Miocene syndepositional movements area under investigation was tilted down southwards as a part of the Carpathian Foredeep. A strong rejuvenation of the old Variscan faults, which already slackened out before the Laramide phase occurred simultaneously.