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001-es BibID:	BIBFORM116333
035-os BibID:	(cikkazonosító)107330 (Scopus)85168331822
Első szerző:	Szemerédi Máté
Cím:	Large-volume Permian felsic volcanism in the Tisza Mega-unit (East-Central Europe): Evidence from mineralogy, petrology, geochemistry, and geochronology / Máté Szemerédi, Andrea Varga, Réka Lukács, István Dunkl, Ioan Seghedi,Mihai Tatu, Zoltán Kovács, Béla Raucsik, Zsolt Benkó, Szabolcs Harangi, Elemér Pál-Molnár
Dátum:	2023
ISSN:	0024-4937
Megjegyzések:	Permian felsic volcanic rocks are widespread in the Tisza Mega-unit (Carpathian-Pannonian region), covering a relatively large area from southern Transdanubia (Hungary) to the Apuseni Mountains (Romania). The present occurrence and structural position of these Permian volcanic rocks are the result of a complex tectonic evolution (including Alpine nappe stacking and Neogene extension); meanwhile, multiple hydrothermal effects and deformation modified their microtexture and chemical composition. In this study, the same emphasis was given to Permian felsic volcanism as well as the subsequent fluid- and/or deformation-related processes in the Tisza Mega-unit to extend our knowledge in regional issues (e.g., geochronology, stratigraphy, and lithologic correlations) and to investigate if the variably altered volcanic rocks can be used in petrogenetic studies. The zircon U-Pb dating yields ages of ~270.4-262.9 Ma for the Apuseni samples and ~268.4-260.2 Ma for those of the Pannonian Basin. Whole-rock geochemistry, considering immobile trace elements, since most of the major element compositions were severely modified by alteration processes, indicates that the studied rocks are dacite to rhyolite. They belong to a voluminous silicic volcanism during the Middle Permian, most probably related to rifts. Petrography, whole-rock geochemistry, and X-ray powder diffraction mineralogy revealed that the predominant alteration of the studied rocks is hydrothermal sericitization, locally superimposed by mylonitization in greenschist to subgreenschist conditions during Alpine orogeny. The K-Ar dating of the separated illite fractions confirms that the ductile deformation acted during the Turonian nappe stacking, as the main Alpine deformation phase in the study area.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Permian Carpathian-Pannonian region Felsic volcanism Petrology Geochronology Postmagmatic alterations
Megjelenés:	Lithos. - 456-457 (2023), p. 1-21. -
További szerzők:	Varga Andrea (geológus) Lukács Réka Dunkl István Seghedi, Ioan Tatu, Mihai Kovács Zoltán (1988-) (geográfus) Raucsik Béla Benkó Zsolt (1980-) (geológus) Harangi Szabolcs (1962-) (geokémikus, vulkanológus) Pál-Molnár Elemér
Pályázati támogatás:	K 131690 Egyéb K 108375 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM113199
035-os BibID:	(WoS)001007950600001 (Scopus)85161831406 (cikkazonosító)88
Első szerző:	Szepesi János
Cím:	Anthropic Vulnerability of a Hydrothermal Mineral Deposit and Related Mining Heritage, a Case Study from a Medieval Gold-Silver Mining Area, Telkibánya, Hungary / János Szepesi, László Sütő, Tibor József Novák, Zsuzsanna Ésik, Zsolt Benkó, Péter Gruber, Richard William Mcintosh, Szabolcs Harangi, Réka Lukács
Dátum:	2023
ISSN:	1867-2477 1867-2485
Megjegyzések:	The movable geoheritage elements (minerals, fossils, rocks) are important part of geodiversity. Their anthropic vulnerability includes collection by geo-amateurs and professionals which has become a very popular activity in the last decades. The in situ protection of such geoheritage elements preserves their authenticity and integrity, but needs detailed inventory and assessment providing recommendation for geoconservation. The aim of this study is to investigate a medieval mining site of the Carpathians (Telkibánya, Hungary) where recent anthropic vulnerability related to mineral collecting. Earlier works emphasized the scientific, aesthetic, and geo-educational potential of the mineral association and mining heritage of the study area. Our field survey gives a review of medieval mining works and the current state of the surviving infrastructure identifies the major areas of mineral collecting disturbances and the integrity of the main and additional geological elements. Based on the degradation risk assessment, further conservation management initiatives are proposed by open collecting outcrops (exposure sites) and declared protection with controlled collecting (finite sites).
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Vulnerability Mining heritage Mineral collecting Geoconservation Geoethics
Megjelenés:	Geoheritage. - 15 : 3 (2023), p. 1-19. -
További szerzők:	Sütő László (geográfus) Novák Tibor (1973-) (geográfus) Szepesi Éva Zsuzsanna (1975-) (geográfus) Benkó Zsolt (1980-) (geológus) Gruber Péter McIntosh, Richard William (1978-) (geológus) Harangi Szabolcs (1962-) (geokémikus, vulkanológus) Lukács Réka
Pályázati támogatás:	131869 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM103433
035-os BibID:	(Wos)000504511700010 (Scopus)85069878227
Első szerző:	Szepesi János
Cím:	Telkibánya lava domes: Lithofacies architecture of a Miocene rhyolite field (Tokaj Mountains, Carpathian-Pannonian region, Hungary) / János Szepesi, Réka Lukács, Ildikó Soós, Zsolt Benkó, Zoltán Pécskay, Zsuzsanna Ésik, Miklós Kozák, Andrea Di Capua, Gianluca Groppelli, Gianluca Norini, Roberto Sulpizio, Szabolcs Harangi
Dátum:	2019
ISSN:	0377-0273
Megjegyzések:	This work focuses on the Miocene Telkibánya Lava Dome Field (Tokaj Mountains, Hungary), proposed as an example of poorly investigated lithofacies architecture of old silicic lava dome fields. A detailed fieldwork, combined with petrographic and radiometric (K/Ar dating) analyses, allows us the redefinition of the volcano-stratigraphy of a 25 km2 area, and the recognition of two temporary different generation of domes that grew in a subaerial environment. 12 cohesive and autoclastic lithofacies are identified and grouped together to document the internal variability of the domes, as well as the erosional phases that affected the lithofacies architecture. Furthermore, stratigraphy, lithofacies association and morphology allow recognizing the areal distribution of 5 lithosomes (lava flows, coulées or domes). All these findings represent a major breakthrough in the identification and interpretation of the volcanic processes that control the growth of silicic lava domes and their products in Late Miocene environment of Carpathian Pannonian region
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Lava dome/flow stratigraphy Lithofacies analysis Rhyolite Perlite Emplacement
Megjelenés:	Journal Of Volcanology And Geothermal Research. - 385 (2019), p. 179-197. -
További szerzők:	Lukács Réka Soós Ildikó Benkó Zsolt (1980-) (geológus) Pécskay Zoltán (1951-) (geológus) Szepesi Éva Zsuzsanna (1975-) (geográfus) Di Capua, Andrea Groppelli, Gianluca Norini, Gianluca Sulpizio, Roberto Harangi Szabolcs (1962-) (geokémikus, vulkanológus) Kozák Miklós (1948-) (geológus)
Pályázati támogatás:	GINOP-2.3.2-15-2016-00009 ICER GINOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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