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Fig. 1
A – tectonic map with major tectonic units of the Alps, Carpathians and Dinarides (Schmid et al., 2016), with the position of the Slavonian Mts. (Croatia) marked by a black rectangle (B). B – The geology of the crystalline basement rocks of the Slavonian Mts. A simplified geological outline of the Slavonian Mts. (Psunj, Papuk and Krnidja) (according to Jamičić, 2001) with sampled locations: PSG-1 Omanovac Quarry (Psunj Mt.), 2PPG-32 Šandrovac Quarry (NW Papuk Mt.) and HEG-31 Kišeljevac Creek (S slope of Papuk Mt.). Legend: 1 – Graniotoids (G), 2 – Migmatites (Mi), 3 – Biotite-muscovite gneiss (Gmb), 4 – garnet-staurolite gneiss, kyanite gneiss, sillimanite gneiss, amphibolite, metagabbro, amphibole-schist, chlorite-sericite schist and flaser granitoids, and other different types of granitoids with marble. C – Schematic drawing of three series of basement rocks: the Psunj-Krndija, Papuk and Radlovac Complexes.
Cathodoluminescence images of dated zircon crystals separated from the amphibole monzogranite (PSG-1) from Omanovac Quarry, Psunj Mt., Croatia. The white rectangles and circles mark the in-situ laser-ablation track used for U/Pb dating, (ø = 10–15–20 μm), and they are not in scale. Measurement numbers are listed in Table 1.
Fig. 6
Concordia plot of LA-MC-ICP-MS U-Pb zircon analytical results for the PSG-1 sample.
Fig. 7
Cathodoluminescence images of dated zircon crystals separated from the monzogranite (2PPG-32) from Šandrovac Quarry, Papuk Mt., Croatia. The white rectangles mark the in-situ laser-ablation track used for U/Pb dating, (ø = 10–15 μm) and they are not in scale. Measurement numbers are listed in Table 1.
Fig. 8
Concordia plots of LA-MC-ICP-MS U-Pb zircon analytical results (Table 1) for the 2PPG-32 sample.
Fig. 9
Cathodoluminescence images of dated zircon crystals separated from the biotite monzogranite (HEG-31) from Kišeljevac Creek, Papuk Mt., Croatia. The white rectangles mark the in-situ laser-ablation track used for U/Pb dating, (⌀ = 10–15–20 μm), and they are not in scale. Measurement numbers are listed in Table 1.
Fig. 10
Concordia plots of LA-MC-ICP-MS U-Pb zircon analytical results (Table 1) for the HEG-31 sample (calculated with a forced upper intercept at 207Pb/206Pb = 0.85 ± 0.05).
Zircon laser-ablation MC-ICP-MS U-Th-Pb data including the 206Pb/238U minimum ages.