RADIOMETRIC DATING OF THE TERTIARY VOLCANICS IN LOWER SILESIA, POLAND. IV. FURTHER K-Ar AND PALAEOMAGNETIC DATA FROM LATE OLIGOCENE TO EARLY MIOCENE BASALTIC ROCKS OF THE FORE-SUDETIC BLOCK
Krzysztof BIRKENMAJER (1), Zoltán PÉCSKAY (2), Jacek GRABOWSKI (3), Marek W. LORENC (4) & Paweł P. ZAGOŻDŻON (5)