TY - JOUR AU - Embey-Isztin, Antal TI - Egy korai klímakatasztrófa. Amikor a kék bolygó fehér hógolyóvá változott TS - Amikor a kék bolygó fehér hógolyóvá változott JF - TERMÉSZET VILÁGA J2 - TERMÉSZET VILÁGA VL - 154(1) PY - 2023 SP - 14 EP - 19 PG - 6 SN - 0040-3717 UR - https://m2.mtmt.hu/api/publication/33680498 ID - 33680498 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - A Föld vize JF - TERMÉSZET VILÁGA J2 - TERMÉSZET VILÁGA VL - 152 PY - 2021 SP - 470 EP - 474 PG - 5 SN - 0040-3717 UR - https://m2.mtmt.hu/api/publication/32628760 ID - 32628760 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - VÁLASZ BUJTOR LÁSZLÓ MEGJEGYZÉSEK EMBEY-ISZTIN ANTAL AZ ÉREM MÁSIK OLDALA CÍMŰ TANULMÁNYÁHOZ JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 181 PY - 2020 IS - 3 SP - 403 EP - 405 PG - 3 SN - 0025-0325 UR - https://m2.mtmt.hu/api/publication/31266422 ID - 31266422 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - Az érem másik oldala JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 181 PY - 2020 IS - 1 SP - 107 EP - 115 PG - 9 SN - 0025-0325 UR - https://m2.mtmt.hu/api/publication/31266371 ID - 31266371 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - A lemeztektonika megjelenése a Földön 2 és 3 milliárd év között - Bolygónk átalakulása JF - TERMÉSZET VILÁGA J2 - TERMÉSZET VILÁGA VL - 149 PY - 2018 IS - 9 SP - 404 EP - 408 PG - 5 SN - 0040-3717 UR - https://m2.mtmt.hu/api/publication/3413795 ID - 3413795 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - A köpeny eredetű kőzetek felismerésének története és szerepe a geológiai gondolkodás fejlődésében JF - FÖLDTANI KÖZLÖNY J2 - FÖLDTANI KÖZLÖNY VL - 147 PY - 2017 IS - 4 SP - 415 EP - 422 PG - 8 SN - 0015-542X DO - 10.23928/foldt.kozl.2017.147.4.415 UR - https://m2.mtmt.hu/api/publication/3336316 ID - 3336316 LA - English DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal TI - The role of melt depletion versus refertilization in the major element chemistry of four-phase spinel peridotite xenoliths JF - CENTRAL EUROPEAN GEOLOGY J2 - CENT EUR GEOL VL - 59 PY - 2016 IS - 1-4 SP - 60 EP - 86 PG - 27 SN - 1788-2281 DO - 10.1556/24.59.2016.002 UR - https://m2.mtmt.hu/api/publication/3157119 ID - 3157119 LA - English DB - MTMT ER - TY - JOUR AU - Jankovics, M. Éva AU - Taracsák, Z AU - Dobosi, Gábor AU - Embey-Isztin, Antal AU - Batki, Anikó AU - Harangi, Szabolcs AU - Hauzenberger, CA TI - Clinopyroxene with diverse origins in alkaline basalts from the western Pannonian Basin: implications from trace element characteristics JF - LITHOS J2 - LITHOS VL - 262 PY - 2016 SP - 120 EP - 134 PG - 15 SN - 0024-4937 DO - 10.1016/j.lithos.2016.06.030 UR - https://m2.mtmt.hu/api/publication/3093053 ID - 3093053 N1 - MTA-ELTE Volcanology Research Group, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary Department of Petrology and Geochemistry, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, H-1117, Hungary Department of Mineralogy and Geology, University of Debrecen, Egyetem tér 1, Debrecen, H-4031, Hungary Department of Mineralogy and Petrology, Hungarian Natural History Museum, Ludovika tér 2, Budapest, H-1083, Hungary Institute of Earth Sciences, Karl-Franzens-University of Graz, Universitätsplatz 2, Graz, A-8010, Austria Cited By :36 Export Date: 1 July 2022 Correspondence Address: Jankovics, M.É.Pázmány Péter sétány 1/C, Hungary; email: m.eva.jankovics@gmail.com AB - Abstract Clinopyroxene crystals of various origins occur in the unusually crystal- and xenolith-rich alkaline basalts of the Bondoró-hegy and the Füzes-tó scoria cone, which are the youngest eruptive centres in the Bakony-Balaton Highland Volcanic Field, western Pannonian Basin. The clinopyroxenes show diverse textural and zoning features as well as highly variable major and trace element chemistry. Xenocryst, megacryst and phenocryst crystal populations can be distinguished on the basis of their compositional differences. The trace element patterns of green clinopyroxene cores display a large range in composition and indicate that most of them have a metamorphic origin. Most of them were incorporated from lower crustal mafic granulite wall rocks, whilst only a few of them are of magmatic origin representing pyroxenite (Type II) cumulates. The colourless clinopyroxene xenocrysts reflect the texturally and geochemically diverse nature of the subcontinental lithospheric mantle beneath the studied area, mainly representing regions characterized by various stages of metasomatism. The colourless and green megacrysts are genetically related to each other, having crystallised as early and late crystallisation products, respectively, from petrogenetically related melts as part of a fractional crystallisation sequence. These melts represent earlier alkaline basaltic magmas (as represented by the Type II xenoliths), having stalled and crystallised near the crust-mantle boundary in the uppermost part of the mantle. This serves as evidence that the deep magmatic systems beneath monogenetic volcanic fields are complex, involving several phases of melt generation, accumulation and fractionation at variable depths. We show that in situ trace element analysis is necessary in order to unravel the origins and relationships of the diverse clinopyroxene populations. Such studies significantly contribute to our understanding of the ascent histories of alkaline basaltic magmas as well as provide information about the characteristics of the rocks which constitute the lithosphere. Additionally, the abundance of foreign crystals incorporated in the ascending basaltic magmas, and their potential for contamination of the host magma, must be taken into account when whole-rock geochemical data are interpreted. LA - English DB - MTMT ER - TY - JOUR AU - Downes, H AU - Carter, A AU - Armstrong, R AU - Dobosi, Gábor AU - Embey-Isztin, Antal TI - Lower crustal zircons reveal Neogene metamorphism beneath the Pannonian Basin (Hungary) JF - OPEN GEOSCIENCES J2 - OPEN GEOSCI VL - 7 PY - 2015 IS - 1 SP - 223 EP - 233 PG - 11 SN - 2391-5447 DO - 10.1515/geo-2015-0028 UR - https://m2.mtmt.hu/api/publication/2972614 ID - 2972614 LA - English DB - MTMT ER - TY - JOUR AU - Embey-Isztin, Antal AU - Dobosi, G AU - Bodinier, J-L AU - Bosch, D AU - Jenner, G A AU - Pourtales, S AU - Bruguier, O TI - Origin and significance of poikilitic and mosaic peridotite xenoliths in the western Pannonian Basin: geochemical and petrological evidences JF - CONTRIBUTIONS TO MINERALOGY AND PETROLOGY J2 - CONTRIB MINERAL PETR VL - 168 PY - 2014 IS - 3 SP - 1 EP - 16 PG - 16 SN - 0010-7999 DO - 10.1007/s00410-014-1054-y UR - https://m2.mtmt.hu/api/publication/2972612 ID - 2972612 LA - English DB - MTMT ER -