Fig. 6From: Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinaridesa Plot showing the influence of illite fraction size on the K/Ar ages. b Plot showing the correlation between illite crystallinity (KI values) and K/Ar ages measured on 2 µm illite fractions. For sample locations see Fig. 2aBack to article page