TY - JOUR AU - Brčić, Vlatko AU - Dunkl, István AU - Mindszenty, Andrea AU - Brlek, Mihovil AU - Trinajstić, Nina AU - Bajo, Petra AU - Bauluz, Blanca AU - Mišur, Ivan AU - Karius, Volker AU - Šuica, Sanja AU - Kukoč, Duje AU - Yuste, Alfonso AU - Laita, Elisa AU - Von Eynatten, Hilmar AU - Zeh, Armin TI - A time-space window between Eocene karst bauxite genesis and the first molasse deposition in the Dinaric Foreland Basin in the North Dalmatia, Croatia JF - FRONTIERS IN EARTH SCIENCE J2 - FRONT EARTH SC-SWITZ VL - 11 PY - 2023 SN - 2296-6463 DO - 10.3389/feart.2023.1224164 UR - https://m2.mtmt.hu/api/publication/34120067 ID - 34120067 N1 - Funding Agency and Grant Number: Croatian Geological Survey (HGI-CGS); Ministry of Science and Education of the Republic of Croatia; European Regional Development Fund; Government of Aragon (Aragosaurus Group: Geological Resources and Palaeoenvironments) [E18_20R]; Spanish Ministry of Science, Innovation and Universities [PID 2021-123127OB-I00]; Croatian Science Foundation [HRZZ UIP-2019-04-7761, HRZZ UIP-2020-02-7355]; EU [809943] Funding text: This work was supported by the Croatian Geological Survey (HGI-CGS) and the Ministry of Science and Education of the Republic of Croatia, the European Regional Development Fund and the Government of Aragon (Aragosaurus Group: Geological Resources and Palaeoenvironments, grant number E18_20R), and the Spanish Ministry of Science, Innovation and Universities (grant number PID 2021-123127OB-I00). Minor contributions toward this research were also made by the PYROSKA project (HRZZ UIP-2019-04-7761, Croatian Science Foundation), UNLOCK-CAVE project (HRZZ UIP-2020-02-7355, Croatian Science Foundation), and the GEOTWINN project (Grant No. 809943, EU Horizon 2020). AB - Karst bauxite deposits in the North Dalmatian piggyback basin (NDPGB) are a part of the Mediterranean bauxite belt, which is the largest European bauxite deposit zone; however, there is a general lack of information regarding the genesis, age, and precursor of the bauxite deposits in this region. In this study, we combined detrital zircon U–Pb geochronology with compositional, mineralogical, and morphological data from four bauxite locations in the NDPGB to provide a new palaeogeographical and palaeoenvironmental evolution model for the Lutetian–Rupelian timeframe of the NDPGB. The Eocene climatic conditions began with the Palaeocene–Eocene Thermal Maximum event (∼56 Ma), followed by the Early Eocene Climatic Optimum (∼49 Ma) and Middle Eocene Climatic Optimum (∼40 Ma), and were completed as a cooling trend culminating around the Eocene/Oligocene boundary (∼34 Ma), with a shift towards an icehouse climate. These events were coeval with the continuous drift of the African continent towards Eurasia and the subsequent closure of the western part of the former Neo-Tethys Ocean associated with massive volcanic activity. Based on the bauxite deposits of the NDPGB, Early Eocene limestones formed in the last phase of the long-lasting Adriatic Carbonate Platform. The Middle Eocene orogenic activity resulted in an elevation in this area. High average temperatures, accelerated hydrological cycles and precipitation, and intensive continental weathering with increased volcanic carbon input resulted in favourable conditions for the development of karst bauxites at this time. Further Upper Eocene tectonic deformation of the NDPGB area resulted in the development of bauxite traps and enabled redeposition of the initial bauxite material. Subsequently, the bauxite deposits were covered with clastic carbonate molasse derived from the intensive erosion of the young Dinaric orogeny. The implications of this study are as follows. First, it provides new information on the timing of bauxitisation in the area by providing the first radiometric zircon geochronology, which refined and restricted the time window for bauxite formation in this region. Additionally, our results provide a new perspective on the possibility of aeolian precursors in karst bauxite formation and provide new constraints on the first tectonic marks of the initial Dinaric orogeny. LA - English DB - MTMT ER - TY - CHAP AU - Mindszenty, Andrea ED - Izsák, Éva ED - Szabó, Pál TI - Budapest földtani öröksége dióhéjban T2 - Budapest 150 PB - ELTE TTK Regionális Tudományi Tanszék CY - Budapest SN - 9789634895916 PY - 2023 SP - 33 EP - 51 PG - 19 UR - https://m2.mtmt.hu/api/publication/34016157 ID - 34016157 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kelemen, Péter AU - Dunkl, István AU - Csillag, Gábor AU - Mindszenty, Andrea AU - Józsa, Sándor AU - Fodor, László AU - von Eynatten, Hilmar TI - Origin, timing and paleogeographic implications of Paleogene karst bauxites in the northern Transdanubian range, Hungary JF - INTERNATIONAL JOURNAL OF EARTH SCIENCES J2 - INT J EARTH SCI VL - 112 PY - 2023 IS - 1 SP - 243 EP - 264 PG - 22 SN - 1437-3254 DO - 10.1007/s00531-022-02249-3 UR - https://m2.mtmt.hu/api/publication/33126810 ID - 33126810 N1 - Funding Agency and Grant Number: Eotvos Lorand University Funding text: Open access funding provided by Eotvos Lorand University. AB - Paleogene karst bauxites in the northeastern Transdanubian Range and their cover sequences provide valuable sedimentary archives, despite their weathered nature and vague paleontological records. U–Pb detrital zircon geochronology combined with heavy mineral analysis indicates ‘local’ Alpine aeolian and fluvial sources and ‘distant’ aeolian sources connected to the Bohemian Massif. Records of episodic Paleogene volcanic eruptions related to igneous complexes of the Adamello and probably also the Bergell, Recsk and Balkan Peninsula, are reflected by euhedral zircon crystals. Their U–Pb geochronology supplies age constraints for the phases of subaerial exposure of the karstic surface and the accumulation of bauxitic protoliths and helps to improve the existing stratigraphic records and to define stages of denudation in the northeastern Transdanubian Range. Distinct phases of subaerial exposure and accumulation of the bauxite's protoliths are identified as ca. 42, 35 and 31 Ma; alternating with episodes of subsidence, represented by siliciclastic and carbonatic sequences at ca. 38, 32 and 31 Ma. Besides Paleogene volcanism, zircon dating also revealed contributions from the Middle Triassic tuffs of the Transdanubian Range. Garnet, epidote, kyanite, staurolite, and xenotime/monazite crystals suggest fluvial drainage of diverse metamorphic units of the Austroalpine basement from the Eastern- and Southern Alps, which also supplied most of the pre-Mesozoic zircons. However, the unexpectedly high proportion of Variscan ages in the bauxites most likely relate to igneous rocks of the Bohemian Massif, thus suggesting additional long-distance aeolian sources. The new data allow for detailed reconstructions of the Paleogene evolution and palaeogeography of the northeastern Transdanubian range. LA - English DB - MTMT ER - TY - CHAP AU - Mindszenty, Andrea AU - Sebe, Krisztina ED - Veress, Márton ED - Leél-Őssy, Szabolcs TI - Paleokarst in Hungary T2 - Cave and karst systems of Hungary PB - Springer Netherlands CY - Cham SN - 9783030929602 PY - 2022 SP - 117 EP - 136 PG - 20 DO - 10.1007/978-3-030-92960-2_5 UR - https://m2.mtmt.hu/api/publication/33043389 ID - 33043389 LA - English DB - MTMT ER - TY - JOUR AU - Trabelsi, Khaled AU - Sames, Benjamin AU - Wagreich, Michael AU - Kázmér, Miklós AU - Mindszenty, Andrea AU - Martin-Closas, Carles TI - A new diverse charophyte flora and biozonation of the Eocene bauxite cover-sequence at Gant (Vertes Hills, Hungary) JF - JOURNAL OF SYSTEMATIC PALAEONTOLOGY J2 - J SYST PALAEONTOL VL - 19 PY - 2021 IS - 7 SP - 541 EP - 563 PG - 23 SN - 1477-2019 DO - 10.1080/14772019.2021.1938264 UR - https://m2.mtmt.hu/api/publication/32152165 ID - 32152165 N1 - Université de Sfax, Faculté des Sciences de Sfax, Sfax, CP 3000, Tunisia Université de Tunis El Manar II, Faculté des Sciences de Tunis, LR18 ES07Tunis C.P. 2092, Tunisia Department of Geology, University of Vienna, UZA 2, Althanstrasse 14, Vienna, 1090, Austria Sam Noble Museum, University of Oklahoma, 2401 Chautauqua Ave, Norman, OK 73072, United States Department of Palaeontology MTA-ELTE Geological, Geophysical and Space Science Research Group, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Department of Physical and Applied Geology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary Departament de Dinàmica de la Terra i de l’Oceà, Institut de Recerca de la Biodiversitat (IRBio), Facultat de Ciències de la Terra, Universitat de Barcelona-UB, Barcelona, Catalonia 08028, Spain Cited By :1 Export Date: 8 December 2022 Correspondence Address: Trabelsi, K.; Université de Sfax, Tunisia AB - A diverse Eocene charophyte flora from a section at Gant (Vertes Hills), Transdanubian Central Range, north-western Hungary, provides significant new information building on previous studies based only on sub-surface data published from the mid-twentieth century. This newly acquired material facilitates the taxonomic revision and emendation of the species Raskyella peckii and thereby defines a new anagenetic lineage based on three successive varieties that were formerly considered as separate species or subspecies: Raskyella peckii var. peckii (early Lutetian-early Bartonian), Raskyella peckii var. caliciformis (early Bartonian), and Raskyella peckii var. vadaszii (late Bartonian). Based on this lineage, we propose a new local charophyte biozonation that consists of a 'Raskyella peckii Superzone' (Lutetian-Bartonian), sub-divided into three successive charophyte partial range zones: the 'Raskyella peckii peckii Zone' (Lutetian-lower-most Bartonian) characterized by an assemblage of R. peckii peckii, Gyrogona caelata forma caelata, G. caelata forma monolifera and Nitellopsis (Tectochara) aff. palaeohungarica, the 'Raskyella peckii caliciformis Zone' (lower Bartonian) characterized by the assemblage of R. peckii var. caliciformis, G. caelata forma caelata, G. caelata forma monolifera, G. caelata forma baccata, Nitellopsis (Tectochara) aff. palaeohungarica and Chara media, and the 'Raskyella peckii vadaszii Zone' (upper Bartonian) characterized by R. peckii var. vadaszii, G. caelata forma bicincta, G. caelata forma baccata, G. caelata forma fasciata, G. tuberosa, Psilochara polita, Psilochara sp., Chara media and Chara subcylindrica. Future research may show the new local biozonation as applicable to the whole of Europe and complementary to the current European charophyte biozonation. Our results show that the sequences from Gant, which were previously regarded as upper mid-Eocene (upper Lutetian-lower Bartonian) in age, appear to represent a longer chronostratigraphic interval: lower Lutetian to upper Bartonian. Our chronostratigraphic results imply a longer and more stepwise Eocene major transgression in the Transdanubian Central Range than previously thought. LA - English DB - MTMT ER - TY - CONF AU - Khaled, Trabelsi AU - Benjamin, Sames AU - Michael, Wagreich AU - Kázmér, Miklós AU - Mindszenty, Andrea AU - Carles, Martín-Closas Martín-Closas TI - Charophyte biostratigraphy of continental deposits in a filled-karst system: A case study from the Eocene bauxite cover-sequence at Gánt (Vértes Hills, Hungary) T2 - EGU General Assembly 2021: Conference Abstracts PB - European Geosciences Union (EGU) PY - 2021 UR - https://m2.mtmt.hu/api/publication/31996201 ID - 31996201 LA - English DB - MTMT ER - TY - JOUR AU - Mindszenty, Andrea TI - Id. Lóczy Lajos emlékezete (1849–1920) • The Memory of Lajos Lóczy Sr. (1849–1920) JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 182 PY - 2021 IS - 3 SP - 383 EP - 399 PG - 17 SN - 0025-0325 DO - 10.1556/2065.182.2021.3.10 UR - https://m2.mtmt.hu/api/publication/31931179 ID - 31931179 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kelemen, Péter AU - Csillag, Gábor AU - Dunkl, István AU - Mindszenty, Andrea AU - Kovács, Ivett AU - von Eynatten, H AU - Józsa, Sándor TI - Terrestrial kaolin deposits trapped in Miocene karstic sinkholes on planation surface remnants, Transdanubian Range, Pannonian Basin (Hungary) JF - GEOLOGICAL MAGAZINE J2 - GEOL MAG VL - 158 PY - 2021 IS - 2 SP - 349 EP - 358 PG - 10 SN - 0016-7568 DO - 10.1017/S0016756820000515 UR - https://m2.mtmt.hu/api/publication/31370730 ID - 31370730 N1 - Department of Petrology and Geochemistry, Eötvös Loránd University, Péter sétány 1/C, Budapest, 1117, Hungary Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Budaörsi út 45, Budapest, 1112, Hungary Geological Geophysical and Space Science Research, Hungarian Academy of Sciences (MTA), Eötvös Loránd University, Péter sétány 1/C, Budapest, 1117, Hungary Geoscience Center, University of Göttingen, Goldschmidtstrasse 3, Göttingen, 37077, Germany Department of Physical and Applied Geology, Eötvös Loránd University, Péter sétány 1/C, Budapest, 1117, Hungary Cited By :3 Export Date: 11 July 2022 Correspondence Address: Kelemen, P.; Department of Petrology and Geochemistry, Péter sétány 1/C, Hungary; email: kelemenpeter1991@gmail.com LA - English DB - MTMT ER - TY - CHAP AU - Mindszenty, Andrea ED - Varga, József TI - A hazai bauxitok felfedezése és kutatása T2 - Emlékkönyv a magyar bauxitbányászatról PB - Szerzői kiadás CY - Székesfehérvár SN - 9786150077451 PY - 2020 SP - 23 EP - 46 PG - 24 UR - https://m2.mtmt.hu/api/publication/31931196 ID - 31931196 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Mindszenty, Andrea TI - A magyarországi bauxitok kutatásának rövid története (1903-2020) JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 150 PY - 2020 IS - 4 SP - 529 EP - 544 PG - 16 SN - 0015-542X DO - 10.23928/foldt.kozl.2020.150.4.529 UR - https://m2.mtmt.hu/api/publication/31798306 ID - 31798306 N1 - Export Date: 16 September 2022 Correspondence Address: Andrea, M.; ELTE Általános és Alkalmazott Földtani Tanszék, Pázmány Péter sétány 1/C, Hungary; email: mindszenty@caesar.elte.hu LA - Hungarian DB - MTMT ER -