7th International Workshop Neogene of Central and South-Eastern Europe FIELD TRIP GUIDEBOOK 28–31 May 2017, Velika, Croatia NEOGENE OF THE PARATETHYAN REGION 7th INTERNATIONAL WORKSHOP ON THE NEOGENE FROM THE CENTRAL AND SOUTH-EASTERN EUROPE RCMNS Interim Colloquium FIELD TRIP GUIDEBOOK ORGANISING COMMITTEE Koraljka Bakrač (Croatian Geological Survey) Marija Bošnjak (Croatian Natural History Museum) Marko Cvetković (University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering) Ines Galović (Croatian Geological Survey) Valentina Hajek-Tadesse (Croatian Geological Survey) Morana Hernitz Kučenjak (INA – Industrija nafte d.d., Exploration sector, Rock and Fluid Analysis Department) Marija Horvat (Croatian Geological Survey) Marijan Kovačić (University of Zagreb, Faculty of Science, Department of Geology) Vlasta Premec-Fućek (INA – Industrija nafte d.d., Exploration sector, Rock and Fluid Analysis Department) Đurđica Pezelj (University of Zagreb, Faculty of Science, Department of Geology) Bruno Tomljenović (University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering) Goran Radonić (Nature Park Papuk) Davor Vrsaljko (Croatian Natural History Museum) Lara Wacha (Croatian Geological Survey) EDITORS: Marijan Kovačić, Lara Wacha & Marija Horvat Layout and design: LASERplus, Brijunska 1a, 10 000 Zagreb, Croatia Printed by: Issued: May 2017, 110 copies Published by the Croatian Geological Society Sachsova 2, 10 000 Zagreb, Croatia www.geologija.hr/ [email protected] Zagreb, 2017. ISBN 978-953-59036-5-9 Cover: Radix croatica (GORJANOVIĆ-KRAMBERGER, 1890), locality: Gornje Vrapče, photo by: Šimun Aščić; logo design: Morana Hernitz-Kučenjak & Vlasta Premec Fućek. CONTENTS Marijan Kovačić & Davor Pavelić NeogeNe StratigraPhy of the SlavoNiaN MouNtains ....5 Marijan Kovačić, Darko tibljaš, Davor Pavelić, valentina hajek-tadesse, Koraljka Bakrač, oleg Mandic, ines galović, lara Wacha, radovan filjak & frane Marković STOP 1 POLJaNSKa early-Middle Miocene salina-type and open lake deposits ...............................11 oleg Mandic, valentina hajek-tadesse, Koraljka Bakrač, Bettina reichenbacher, anita grizelj & Mirjana Miknić STOP 2 PoŽEGA long-lived brackish water lake in the Central Paratethys backyard ..................15 Marijan Kovačić, Davor vrsaljko, Đurđica Pezelj, vlasta Premec fućek, Morana hernitz-Kučenjak, ines galović, Stjepan Ćorić, Martina Zalović & frane Marković StoP 3 BuKOVA GLAVA a Middle Miocene marine deposition with pyroclastics ..................................19 Marijan Kovačić, frane Marković, Stjepan Ćorić, Đurđica Pezelj, Davor vrsaljko, Koraljka Bakrač, valentina hajek-tadesse, anđelika ritossa & irena tarnaj StoP 4 VRANOVIĆ Disintegration of the Central Paratethys and origin of the lake Pannon .........22 Monika Špišić, Mirjana Miknić, Marija horvat & Marijan Kovačić StoP 5 ZDeNCi QUARRY Badenian fossiliferous shallow marine carbonates with fragments of rhyolite volcanic rock ...................................................................................26 Marijan Kovačić, oleg Mandic, Marija horvat & tomislav Kurečić StoP 6 PETNJa The termination ofl ake Pannon and the origin of lake Slavonija ..................31 Koraljka Bakrač, Croatian geological Survey, Department of geology ([email protected]) Marijan Kovačić, university of Zagreb, faculty of Science, Department of geology ([email protected]) Stjepan Ćorić, geological Survey of austria ([email protected]) radovan filjak, Croatian geological Survey, Department of geology ([email protected]) ines galović, Croatian geological Survey, Department of geology ([email protected]) anita grizelj, Croatian geological Survey, Department of geology ([email protected]) valentina hajek-tadesse, Croatian geological Survey, Department of geology ([email protected]) Morana hernitz-Kučenjak, iNa - industrija nafte d.d., exploration sector, rock and fluid analysis Department ([email protected]) Marija horvat, Croatian geological Survey, Department of geology ([email protected]) tomislav Kurečić, Croatian geological Survey, Department of geology ([email protected] ) frane Marković, university of Zagreb, faculty of Science, Department of geology ([email protected]) oleg Mandic, Natural history Museum vienna, geological-Palaeontological Department ([email protected]) Mirjana Miknić, Bartolići 49, 10 000 Zagreb, Croatia ([email protected]) Davor Pavelić, university of Zagreb, faculty of Mining, geology and Petroleum engineering ([email protected]) Đurđica Pezelj, university of Zagreb, faculty of Science, Department of geology ([email protected]) vlasta Premec fućek, iNa – industrija nafte d.d., exploration sector, rock and fluid analysis Department ([email protected]) Bettina reichenbacher, Department of earth and environmental Sciences, ludwig-Maximilian-university, 80333 Munich, germany ([email protected]) anđelika ritossa, university of Zagreb, faculty of Science, Department of geology ([email protected]) Monika Špišić, Croatian geological Survey, Department of geology ([email protected]) irena tarnaj, Dilj d.o.o. vinkovci ([email protected]) Darko tibljaš, university of Zagreb, faculty of Science, Department of geology ([email protected]) lara Wacha, Croatian geological Survey, Department of geology ([email protected]) Martina Zalović, Našicecement d.d., Našice ([email protected]) Neogene Stratigraphy OF THE SLAvONIAN Mountains Marijan Kovačić & Davor Pavelić The term Slavonian Mountains refers to the five, up to pean Plate and the african Plate. The development of 1000 m high, hills of Papuk, Krndija, Psunj, Požeška PBS is divided into two successive phases: the syn-rift and Dilj, located in the eastern Croatian region of Sla- and post-rift phases. The syn-rift phase of the basin vonija, along the southern margin of the Pannonian evolution was characterized by the tectonic thinning of Basin System (PBS) (fig. i.1). They represent large the crust and isostatic subsidence, while the post-rift blocks composed of different, strongly tectonized pre- phase was marked by the basin subsidence due to the Miocene basement rocks, uncomfortably overlain by cooling of the lithosphere (rOYDeN, 1988). The de- Miocene deposits and uplifted during the Pliocene and velopment was complex and heterogenous which is the Quaternary (fig. i.2). The Pre-Miocene basements reflected in the individual evolution of several subba- exposed on the surface in the central parts of Psunj, sins. The PBS is surrounded by thea lps, the Carpathi- Papuk and Krndija are composed of metamorphic and ans and the Dinarides, and palaeogeographically it be- igneous pre-alpine rocks of the southern tisia, and the longs to the Central Paratethys realm (rÖGL & STEI- Permian-Mesozoic sediments. The basement of the Mi- NiNGER, 1983; PoPOV et al., 2004; HARZHAUS- ocene deposits on Mt. Požeška consists of upper Cre- ER & PILLER, 2007). taceous (ŠPARICa et al., 1979, 1980) and probably The NCB is an elongated rift-type basin generated Palaeogene rocks (HALAMiĆ et al., 1993), while on by the continental passive rifting that started in the Mt. Dilj pre-Miocene rocks are not exposed on the sur- early Miocene. its evolution was strongly controlled by face. The maximum depth of the pre-Miocene base- external factors, such as tectonics, climate changes, vol- ment in the Požega valley, situated between the Slavo- canic activity and eustatic sea-level changes. The syn-rift nian Mountains, is 2700 m. North of them, in the phase of the basin evolution, which lasted from the ot- Drava depression, the maximum depth of the pre-Mi- tnangian until the Mid Badenian, was characterized by ocene basement is more than 7000 m, and to the south, strong volcanism and depositional environments that in the Sava depression, about 5 km (SAFTIĆ et al., changed from terrestrial into marine. The post-rift 2003). phase, which lasted from the late Badenian to Quater- The Slavonian Mountains are a part of the North nary, was characterized by a shift from marine and Croatian Basin (NCB) situated in the south-western brackish to terrestrial environments, rapidly decreasing part of the Pannonian Basin System (PBS). forming of volcanism, and two compressional phases that caused the PBS commenced in the early Miocene as a result of the basin inversion and structural blocks rotation the continental collision and subduction of the euro- (JaMiČiĆ, 1995; MÁRTON et al., 1999, 2002; Fig. I.1 The position of the Slavonian Mountains ine astern Croatia with field trip stops indicated. 7th International Workshop | Neogene of Central and South-Eastern Europe 5 Fig. I.2 geological sketch map of the Slavonian Mountains. Simplified after geological Map of the republic of Croatia 1:300 000 (CgS, 2009). PAVELIĆ, 2001; TOMlJeNOVIĆ & CSoNTOS, vac unit”). They are characterized by rock-fall breccias 2001; PAVELIĆ et al., 2003; MALVIĆ, 2012). The and conglomerates interpreted as talus and alluvial fan consequence of the specific evolution is the modern deposits. Structureless silty units, intercalated with structural pattern characterized by the WNW-eSe coarse-grained deposits, on the Mt. Požeška indicate trending elongated and tectonically subsided zones of aeolian deposition, (i.e. PAVELIĆ & KOVAČiĆ, 1999; depressions with the maximum depth of basement PAVELIĆ, 2001; PAVELIĆ et al., 2016). however, on rocks of about 7000 m separated by tectonically up- Mt. Papuk specific deposits represented by the predom- lifted