LOWER KIMMERIDGIAN LAYER WITH BORED AND ENCRUSTED HIATUS CONCRETIONS (UPPER JURASSIC, CENTRAL POLAND): IMPLICATIONS FOR STRATIGRAPHY AND BASIN EVOLUTION
Marcin KRAJEWSKI, Piotr OLCHOWY & Ireneusz FELISIAK
AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, Al. Mickiewicza 30, 30-059 Kraków, Poland; e-mails: kramar at geol.agh.edu.pl, piotrolch at geol.agh.edu.pl, felisiak at geol.agh.edu.pl