@article{MTMT:34478128, title = {Geoheritage and Cultural-Religious Heritage of Samalute-Minia Area in North Egypt}, url = {https://m2.mtmt.hu/api/publication/34478128}, author = {Khalaf, EEAH}, doi = {10.1007/s12371-023-00903-z}, journal-iso = {GEOHERITAGE}, journal = {GEOHERITAGE}, volume = {16}, unique-id = {34478128}, issn = {1867-2477}, abstract = {Geodiversity, geoheritage, geoconservation, and geotourism insights are meticulously interrelated. Their investigations are of comprehensive attention worldwide because of their high scientific, educational, scenic, and recreational values. Various new destinations in Egypt have been promoted for the geotourism and abundance in significance geological heritages in which Samalute-Minia Area is one of the most energetic tourist’s magnetism. The study area is an imperative geo-cultural province that has significant number of geosites and geotouristic fascinations, demonstrating broad array of distinctive phenomena. The latter are assigned to remarkable geomorphological, volcanological, hydrogeological, quarrying, historical, and cultural landscapes that are deliberated a vital part of the polythematic geopark. All of these sites allow the visitors, sightseers, and indigenous populations to enjoy different aspects of tourism such as religious, antiquities, recreational, safari, or ecological tourism as the root for providing the commitment, education, and pleasure. The goal of the present paper aims to stress the reputation of the geological heritage earmarked by Samalute-Minia Area. A quantitative assessment of geodiversity at the study area was carried out using the Brilha’s method (2016) in which the evaluation outputs are labeled for geotourism obligations. A list of eight geosites has been inventoried. Among the principal geosites are (1) geomorphology and karst landforms (GKL), (2) circular structural landforms (CSL), (3) volcanic landforms (VL), (4) riverine landforms (RL), (5) Christian Religion sites (CRS), (6) ancient Egypt monuments (AEM), (7) industrial sites (IS), and (8) hydrogeological aquifers (HA). Quantitative valuation has been revealed that the bunched geosites of GKL, VL, and RL have great scientific and educational value scores, while the geosites of CRS and AEM have high potential touristic use compared to low value for the IS. Regarding the risk evaluation, a high degradation risk is assigned to the sites of AEM, RL, and HA. Severe threats comprising pollution, rapid urbanization, intense degradation of underground water, illegal water pumping, quarrying/excavation, bumpy tourism, and lacking of environmental management are the chief causes for the degradation risk. The lasting five geosites display a moderate to low risk of degradation because there are no extreme observed denudation processes that generate degradation. The protection and geoconservation, increasing the touristic attractiveness, and the socio-economic development for the local community could be proposed in order to decrease the high degradation risk for some geosites. Lastly, the Samalute-Minia Area needs more scientific and potential geoheritage study, improvement in the security circumstances, promotion of the geosites, and strategic implementations as well as regulation constraints for continuous regional development to improve geotourism and geoconservation. The geotourism development would diminish the rate of joblessness and immigration, offer scenarios for dropping poverty through engaging the local inhabitants in tourism activities, and ensure the protection and educational stopovers to well-known geosites.}, year = {2024}, eissn = {1867-2485} } @article{MTMT:33861716, title = {Remote sensing data applied to the reconstruction of volcanic activity in the Valley of the Volcanoes, Central Volcanic Zone, Peru}, url = {https://m2.mtmt.hu/api/publication/33861716}, author = {Gałaś, Andrzej and Lewińska, Paulina and Aguilar, Rigoberto and Nowak, Łukasz}, doi = {10.1016/j.jog.2023.101972}, journal-iso = {J GEODYN}, journal = {JOURNAL OF GEODYNAMICS}, volume = {156}, unique-id = {33861716}, issn = {0264-3707}, abstract = {The Valley of the Volcanoes is a representative area of the extension of the Quaternary Andahua Group with which it overlaps. Some of its eruption centres have renewed activity after more than 500 ka. Recreating the history of the Valley of the Volcanoes activity required satellite data and remote sensing-based methods for visualizing the terrain surface. We used SRTM 30 m DEM, channels 4, 3, 2; Landsat 7, 8 and ASTER images. We verified and refined the obtained data during field works using Structure-from-Motion (SfM) to create of 3D models of selected geoforms. Satellite data allowed us to create: Red Relief Image Map, Topographic Position Index and Normalised Difference Vegetation Index (NDVI) maps. In the Valley of the Volcanoes, we analysed 12 lava fields with a total area of 326.3 km2 and a volume of approx. 20 km3. We determined the number of eruption centres that yielded to 41 small lava domes and 23 scoria cones. This domes are classified as monogenetic volcanoes, however five of them can be considered polygenetic e.g. Puca Mauras. We used NDVI to develop chronology map of lavas. This allowed us to extract same-age eruption centres and associated volcanoes that represent the same eruptive time phase connected by fault lines: first generation (0.5–0.27 Ma) NW-SE and NE-SW, second (Pleistocene/Holocene) NNW-SSE and third (Holocene-Historical) again NW-SE and NE-SW. We carried out the reconstruction of the central part of the Valley of the Volcanoes because only there repeated phases of volcanic activity can be inferred with remote sensing and geological mapping. The results of this study led us to indicate that this area should be observed since it is very likely that future eruptions will occur.}, keywords = {volcanoes; SATELLITE DATA; Andes; Eruption phases; Lava generation}, year = {2023}, pages = {101972} } @article{MTMT:34019221, title = {The Basaltic Monogenetic Volcanic Field of the Bakony– Balaton UNESCO Global Geopark, Hungary: From Science to Geoeducation and Geotourism}, url = {https://m2.mtmt.hu/api/publication/34019221}, author = {Harangi, Szabolcs and Korbély, B}, doi = {10.30486/gcr.2023.1981579.1125}, journal-iso = {GEOCONSERVATION RES}, journal = {GEOCONSERVATION RESEARCH}, volume = {6}, unique-id = {34019221}, issn = {2588-7343}, year = {2023}, eissn = {2645-4661}, pages = {70-97}, orcid-numbers = {Harangi, Szabolcs/0000-0003-2372-4581} } @article{MTMT:32632993, title = {Tephrostratigraphy and morphometry of Wum Maar Volcano (Oku Volcanic Group- Cameroon Volcanic line): Implications for complex monogenetic volcanoes}, url = {https://m2.mtmt.hu/api/publication/32632993}, author = {Aziwo, Bertrand Tatoh and Tamen, Jules and Chako-Tchamabé, Boris and Elvis, Asaah Asobo Nkengmatia and Kimoun-Yangouo, Fatima and Zemfack-Dongmo, Bibiche Scheila and Ziada-Tabengo, Morel and Terre, Tedonkenfack Sylvin Sans}, doi = {10.1016/j.jafrearsci.2022.104470}, journal-iso = {J AFR EARTH SCI}, journal = {JOURNAL OF AFRICAN EARTH SCIENCES}, volume = {188}, unique-id = {32632993}, issn = {1464-343X}, abstract = {Field investigations of tephra deposits and morphometric characterisation were used to constrain the eruptive history and the complexity of the Wum Maar Volcano (WMV) on the Northwestern foot of the Oku Volcanic Group (Cameroon Volcanic Line). The WMV is a compound volcanic edifice made up of an irregular horse-shoe-shaped maar-crater bordered by overlapping scoria cones and a small lava flow field. The bulk ejecta volume computed using ArcGIS.10.3 and field topographic measurements is ∼0.133 km3. The deposits were subdivided into older volcanics, a pre-maar member composed of four Strombolian scoria cones and a maar-member made up of interbedded layers of lapilli-tephra, lapilli-ash, and ash-breccia deposits. The bedding characteristics (structure, bedding dip, direction, attitude, and contact relations) coupled with the componentry analysis of maar deposits indicate phreatomagmatic-derived fallouts and pyroclastic density currents emplaced under both dry and wet conditions due to variations in magma-water ratio during the different phreatomagmatic explosions. The thick paleosol between older volcanics and the pre-maar and the maar deposits suggests that before the formation of the WMV, an eruptive activity took place and comprised an effusive outpouring of a basaltic magma batch that exploited the network of fractures within the basement rocks to reach the surface. Long after this stage, other batches of basanitic and trachybasaltic magmas richer in volatiles erupted explosively (Strombolian eruptive dynamism) around the northern and southern rims of the maar crater, leading to the emplacement of several overlapping scoria cones. The last stage was characterised by the formation of the Wum maar crater through a phreatomagmatic explosion when batches of basanitic magma came in contact with groundwater. The volcanics are sub-aphyric and host mantle xenoliths. Although evenly distributed across the different maar units, these mantle xenoliths are frequent and large enough to suggest a rapid magma ascent. The center of the maar crater compared to the location of the scoria cones suggest that the explosion locus migrated eastwards. The relative proportion of lithic granite within the pyroclastic succession increases upward (highest in MU4), and the depth of the maar varies from <10 m at the western border to about 124 m at the eastern one, suggesting a vertical and a lateral migration of the explosion locus. The intensity of the phreatomagmatic explosion reduced with time as indicated by the clast-size distribution, with a progressive reduction in water availability wherein the eruption became more internally controlled, changing in style from phreatomagmatic to Strombolian at the end. We conclude that even with very small magma volumes, monogenetic eruptions can have very complex histories, as shown by the WMV, because of the taping system, multiple vents, change in eruptive style, vertical and lateral migration of eruption foci, and multiple magma batches.}, keywords = {morphometry; Cameroon volcanic line; Tephrostratigraphy; Eruptive history; Wum maar volcano; Complex maar}, year = {2022}, eissn = {1879-1956} } @article{MTMT:32889517, title = {Morphometric Analysis of Scoria Cones to Define the ‘Volcano-Type’ of the Campo de Calatrava Volcanic Region (Central Spain)}, url = {https://m2.mtmt.hu/api/publication/32889517}, author = {Becerra-Ramírez, Rafael and Dóniz-Páez, Javier and González, Elena}, doi = {10.3390/land11060917}, journal-iso = {LAND-BASEL}, journal = {LAND (BASEL)}, volume = {11}, unique-id = {32889517}, abstract = {The Campo de Calatrava Volcanic Region is the largest volcanic field in the Iberian Peninsula and presents a complex volcanic history, with more than 360 monogenetic basaltic volcanoes developed in effusive, Strombolian, and hydromagmatic eruptions. The large number of scoria cones, compared to the other existing types of volcanic morphologies, indicates that these landforms represent the most common eruptive events that occurred during Calatrava’s geological past. In this work, a morphometric analysis of the scoria cones was carried out, based on statistical analysis of the main morphological parameters of these volcanoes (height, cone width, crater width, crater depth, slope, area, etc.). The results were used to identify the most frequent scoria cone by means of statistical analysis of its main morphological features. To do this, a methodology based on statistical correlations of the morphological and morphometric parameters that best define the morphology of these volcanoes was applied. The number of cones and their distribution correspond to platform volcanic fields. The most frequent identified monogenetic volcano corresponds to a scoria cone developed in Strombolian dynamics with lava flows, with mean dimensions of 36.54 m height, 0.008113 km3 volume and an area of 0.454 km2.}, year = {2022}, eissn = {2073-445X} } @article{MTMT:32172635, title = {Tertiary monogenetic volcanism in the Gabal Marssous, Bahariya Depression, Western Desert, Egypt: implication for multi-phases, mafic scoria cone suite related to Red Sea rift in the Afro-Arabian realm}, url = {https://m2.mtmt.hu/api/publication/32172635}, author = {Khalaf, Ezz El Din Abdel Hakim and Wahed, Mohamed Abdel and Maged, Azeeza and Németh, Károly}, doi = {10.1007/s00531-021-02099-5}, journal-iso = {INT J EARTH SCI}, journal = {INTERNATIONAL JOURNAL OF EARTH SCIENCES}, volume = {111}, unique-id = {32172635}, issn = {1437-3254}, abstract = {An integrated stratigraphic, sedimentological, volcanological, and geochemical studies were conducted for the first time on the eruptive products of the Marssous volcano, Bahariya Depression, Western Desert, Egypt. The rarity of complex volcanological studies in the west Red Sea rift makes these investigated volcanoes important as they offer a clue to the style of volcanism, eruptive environment and magma genesis during magmatism complimentary to those areas extensively studied in the Arabian Peninsula toward Syria and Eastern Turkey. The Marssous volcano is small monogenetic scoria cone that shows a polyphase feeding system, consisting of unconformable superimposed characteristic effusive-to-explosive eruptive units, suggesting a wide spectrum of diverse eruptive styles through a complex feeder network. On the basis of the sedimentological characteristics, field relationships, lava flow textures and granulometric indicators, five volcanic units have been identified from the base to top as (1) coherent porphyritic massive basalts (Bpm), (2) stratified tuff beds (Unit 1), (3) crude-bedded lapilli tuff beds with bombs (Unit 2), (4) massive agglutinate beds (composed of spatter and fluidal bombs) formed by lava fountains (Unit 3), (5) porphyritic vesicular basalts (Bpv), and (6) subvolcanic feeder intrusions. The degree of vesicularity and the size of the clasts increase from thin Unit 1 (ash to lapilli) through more thick Unit 2 (lapilli-bomb) to Unit 3 (breadcrusted scoriaceous bomb) as an indicative of an increased magma flux and the high eruptive energy together with an enlarged of degassing fragmentation. There is consequently a progressive evolution from an initial Phreatomagmatic explosive stage followed an initial effusive event to dry magmatic explosive (Strombolian & Hawaiian) and effusive eruptive styles in the later. With eruption progression, the external water to fuel Phreatomagmatism was diminished relatively early in the eruptions giving way to accumulate a pyorclastic fall deposition of Strombolian to Hawaiian lava-fountain episodes together with effusive eruptions, all together forming the majority of the pyroclastic and effusive successions of Gabal Marssous. These eruptive phases have happened during a continuous deposition without any time pauses in a short period of time as a result of a single cone-forming eruptions. The Marssous volcano shares resemblances in terms of inferred eruption style and structures with other scoria cones elsewhere in the broad regional context such as North Africa, Mediterranean province, and Arabian Peninsula, and thus provides an outstanding field laboratory to explore scoria cones architecture and growth from a global perspective. This volcano event is a key tectono-stratigraphic marker for an early manifestation, coinciding with the initiation of Red Sea rifting opening.}, year = {2022}, eissn = {1437-3262}, pages = {53-84} } @{MTMT:32649655, title = {Eruptive History and Petrologic Evolution of the Lechmine N’Aït El Haj Maar (Middle Atlas, Morocco)}, url = {https://m2.mtmt.hu/api/publication/32649655}, isbn = {978-3-030-72547-1}, author = {Mountaj, Sara and Remmal, Toufik and Makhoukhi, Samira and Amrani, Iz-Eddine El Hassani El and Lakroud, Kawtar and Boivin, Pierre}, booktitle = {Recent Research on Geomorphology, Sedimentology, Marine Geosciences and Geochemistry}, unique-id = {32649655}, abstract = {The maar of Lechmine N'Aït El Haj (LNH) is a monogenetic Plio-Quaternary volcano, located in the volcanic province of the Middle Atlas (Morocco). It is represented by a 110 m deep crater hosted in Liasic limestones. The tephra deposits surrounding the crater are mainly made up of pyroclastic beds interpreted as deposits of phreatomagmatic origin. They are overlain by a small unit of massive breccia tuff that reflects the transition of the eruptive style to the Strombolian. A supply of karstic water caused another transition of the eruptive style from the Strombolian to the phreatomagmatic dynamism. At the end of the volcanic activity, a significant karst collapse of the LNH maar occurred, leading to its current morphology. Petrographic data shows that the volcanic rocks are nephelintes. They are composed essentially of pyroxene and subsidiary olivine. They are silica-undersaturated and belong to sodic magma series. The distinctive geochemical characteristics indicate that the magma has a high MgO (11.4–14.2 wt%) concentration, a low silica content (38.5–40.8 wt%), and a high Ni and Cr concentrations (220–318 ppm and 330–451 ppm, respectively).}, year = {2022}, pages = {325-328} } @article{MTMT:32989127, title = {The eruptive history and magma composition of Pleistocene Cerro Negro volcano (Northern Chile): Implications for the complex evolution of large monogenetic volcanoes}, url = {https://m2.mtmt.hu/api/publication/32989127}, author = {Romero, Jorge E. and Ureta, Gabriel and Fuentes, Paulina and Corgne, Alexandre and Naranjo, José A. and Ramírez, Carlos F. and Chako-Tchamabé, Boris and Cáceres, Miguel and Lazcano, José}, doi = {10.1016/j.jvolgeores.2022.107618}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {429}, unique-id = {32989127}, issn = {0377-0273}, year = {2022}, eissn = {1872-6097} } @article{MTMT:32583509, title = {Eltemetett vulkáni kitörési központ(ok) nyomában ÉK-Magyarországon / In search of buried volcanic eruption centres in North-Eastern Hungary}, url = {https://m2.mtmt.hu/api/publication/32583509}, author = {Kiss, János}, journal-iso = {MAGYAR GEOFIZIKA}, journal = {MAGYAR GEOFIZIKA}, volume = {62}, unique-id = {32583509}, issn = {0025-0120}, abstract = {Egy OTKA-pályázatban, a gravitációs lineamensek kimutatása során, az Alföld területén (több kilométer vastag laza törmelékes üledék felett) érdekes ellipszis formájú gravitációs minimumot azonosítottunk (Kiss 2006, Kiss et al. 2007). Akkoriban sekély-geofi zikai feladataink voltak, elsősorban a Dunántúlon, így sem az Alföld, sem a Nyírség földtani felépítésével nem voltunk naprakészek, de mégis a nyírségi eltemetett vulkanizmusának nyomait láttunk megjelenni már akkor is. Évekkel később a geofi zikai alapszelvények témakörben, majd a mélyföldtani kutatások keretében ismét a Nyírségben találtuk magunkat, ahol az eltemetett vulkanitok miatt máig keveset tudunk a földtani felépítésről, vagy a prekainozoos medencealjzat mélységéről. Cikkünkben az ellipszis formájú gravitációs minimumok földtani okait keressük, felvértezve a térségben korábban végzett kutatások eredményeivel és tapasztalataival (pl. Zelenka et al. 2004, 2012, Bodoky et al. 1977, Nemesi et al. 1981, Széky-Fux et al. 2007, Krassay 2010, Kiss et al. 2019, Kiss 2021), valamint a hazai és nemzetközi szakirodalomban talált, vulkanizmussal kapcsolatos információkkal (pl. Gyarmati 1977, Acocella 2007, Keresztúri 2010, Harangi 2018, Souza 2019, Corradino et al. 2021). Mivel a vulkanizmus nyomait a mért (geo)fizikai paraméterek alapján csak ritkán lehet egyértelműen megfogni, így elsősorban a vulkánmorfológiai elemekre koncentráltunk – a kutatás e fázisában a kimutatás a legfontosabb cél. In an OTKA project, an interesting ellipsoidal gravity minimum was identified in the Great Plain region (over several kilometers of loose debris sediment) during the detection of gravity lineaments (Kiss 2006, Kiss et al. 2007). At that time, we were working on shallow geophysics, mainly in the Transdanubian region, so we were not up to date with the geology of either the Great Plain or the Nyírség, but we still saw traces of buried volcanism in the Nyírség already then. Years later, in the field of basic geophysical profiles and then in the field of exploration of deep geology of the country, we found ourselves again in the Nyírség, where, because of the buried volcanics, we still know little about the geological structure or about the depth of the Pre-Cenozoic basement. In this article, we look for the geological causes of the ellipsoidal gravity minima, based on the results and experience of previous research in the region (e.g. Zelenka et al. 2004, 2012, Bodoky et al. 1977, Nemesi et al. 1981, Széky-Fux et al. 2007, Krassay 2010, Kiss et al. 2019, Kiss 2021), as well as information on volcanism found in the national and international literature (e.g. Gyarmati 1977, Acocella 2007, Keresztúri 2010, Harangi 2018, Souza 2019, Corradino et al. 2021). Since traces of volcanism can rarely be clearly identified on the basis of measured (geo)physical parameters alone, we have focused primarily on volcanic morphology – detection is the most important objective at this stage of the research.}, year = {2021}, eissn = {2677-1497}, pages = {150-169}, orcid-numbers = {Kiss, János/0000-0001-8589-1364} } @article{MTMT:31969940, title = {Controls by rheological structure of the lithosphere on the temporal evolution of continental magmatism: Inferences from the Pannonian Basin system}, url = {https://m2.mtmt.hu/api/publication/31969940}, author = {Koptev, A and Cloetingh, S and Kovács, István János and Gerya, T and Ehlers, TA}, doi = {10.1016/j.epsl.2021.116925}, journal-iso = {EARTH PLANET SC LETT}, journal = {EARTH AND PLANETARY SCIENCE LETTERS}, volume = {565}, unique-id = {31969940}, issn = {0012-821X}, year = {2021}, eissn = {1385-013X}, orcid-numbers = {Kovács, István János/0000-0002-3488-3716} } @inbook{MTMT:31775570, title = {Study of Monogenic Volcanism in a Karstic System: Case of the Maar of Lechmine n’Aït el Haj (Middle Atlas, Morocco)}, url = {https://m2.mtmt.hu/api/publication/31775570}, author = {Mountaj, Sara and Mhiyaoui, Hassan and Remmal, Toufik and Makhoukhi, Samira and El Kamel, Fouad}, booktitle = {Updates in Volcanology – Transdisciplinary Nature of Volcano Science}, doi = {10.5772/intechopen.94756}, unique-id = {31775570}, year = {2021}, pages = {1-23} } @article{MTMT:31194862, title = {Late Pleistocene to Holocene activity of Alchichica maar volcano, eastern Trans-Mexican Volcanic Belt}, url = {https://m2.mtmt.hu/api/publication/31194862}, author = {Chako, Tchamabé B. and Carrasco-Núñez, G. and Miggins, D.P. and Németh, Károly}, doi = {10.1016/j.jsames.2019.102404}, journal-iso = {J S AM EARTH SCI}, journal = {JOURNAL OF SOUTH AMERICAN EARTH SCIENCES}, volume = {97}, unique-id = {31194862}, issn = {0895-9811}, year = {2020}, eissn = {1873-0647} } @article{MTMT:31712273, title = {Diversity of Volcanic Geoheritage in the Canary Islands, Spain}, url = {https://m2.mtmt.hu/api/publication/31712273}, author = {Doniz-Paez, Javier and Beltran-Yanes, Esther and Becerra-Ramirez, Rafael and Perez, Nemesio M. and Hernandez, Pedro A. and Hernandez, William}, doi = {10.3390/geosciences10100390}, journal-iso = {GEOSCIENCES}, journal = {GEOSCIENCES (SWITZERLAND)}, volume = {10}, unique-id = {31712273}, abstract = {Volcanic areas create spectacular landscapes that contain a great diversity of geoheritage. The study of this geoheritage enables us to inventory, characterise, protect and manage its geodiversity. The Canary Islands are a group of subtropical active volcanic oceanic islands with a great variety of magma types and eruption dynamics that give rise to a wide diversity of volcanic features and processes. The aim of this paper is to identify, for the first time, the diversity of volcanic geoheritage of the Canary Islands and to appraise the protection thereof. To this end, a geomorphological classification is proposed, taking into account the features and processes directly related to volcanism, such as those resulting from erosion and sedimentary processes. The main findings demonstrate that the volcanic geoheritage of the Canary Islands is extremely varied and that this geodiversity is safeguarded by regional, national and, international protection and management frameworks. Even so, and given the enormous pressure of coastal tourism on the coastlines of the islands, we believe that continuing efforts should be made to conserve and manage their volcanic and non-volcanic geoheritage, so that these places can continue to be enjoyed in the form of geotourism.}, keywords = {Spain; Canary Islands; geoparks; geotourism; Volcanic geoheritage; volcanic geomorphological classification}, year = {2020}, eissn = {2076-3263}, orcid-numbers = {Doniz-Paez, Javier/0000-0002-7789-7720} } @article{MTMT:31006469, title = {The role of water and compression in the genesis of alkaline basalts: Inferences from the Carpathian-Pannonian region}, url = {https://m2.mtmt.hu/api/publication/31006469}, author = {Kovács, István János and Patkó, Levente and Liptai, Nóra and Lange, Thomas Pieter and Taracsák, Z. and Cloetingh, S.A.P.L. and Török, Kálmán and Király, Edit and Karátson, Dávid and Biró, Tamás and Kiss, János and Pálos, Zsófia and Aradi, László Előd and Falus, György and Hidas, K. and Berkesi, Márta and Koptev, A. and Novák, Attila and Wesztergom, Viktor and Fancsik, Tamás and Szabó, Csaba}, doi = {10.1016/j.lithos.2019.105323}, journal-iso = {LITHOS}, journal = {LITHOS}, volume = {354-355}, unique-id = {31006469}, issn = {0024-4937}, year = {2020}, eissn = {1872-6143}, orcid-numbers = {Kovács, István János/0000-0002-3488-3716; Patkó, Levente/0000-0001-6007-3103; Liptai, Nóra/0000-0002-2464-2468; Lange, Thomas Pieter/0000-0002-8709-9239; Karátson, Dávid/0000-0003-0386-1239; Biró, Tamás/0000-0001-5198-7210; Kiss, János/0000-0001-8589-1364; Aradi, László Előd/0000-0003-0276-3119; Berkesi, Márta/0000-0003-4380-057X; Szabó, Csaba/0000-0002-1580-6344} } @article{MTMT:31648077, title = {Eruptive history of La Poruña scoria cone, Central Andes, Northern Chile}, url = {https://m2.mtmt.hu/api/publication/31648077}, author = {Marín, Carolina and Rodríguez, Inés and Godoy, Benigno and González-Maurel, Osvaldo and Le Roux, Petrus and Medina, Eduardo and Bertín, Daniel}, doi = {10.1007/s00445-020-01410-7}, journal-iso = {B VOLCANOL}, journal = {BULLETIN OF VOLCANOLOGY}, volume = {82}, unique-id = {31648077}, issn = {0258-8900}, year = {2020}, eissn = {1432-0819} } @article{MTMT:31609191, title = {Quantitative spatial distribution analysis of mafic monogenic volcanism in the southern Puna, Argentina: Implications for magma production rates and structural control during its ascent}, url = {https://m2.mtmt.hu/api/publication/31609191}, author = {Morfulis, Marcos and Báez, Walter and Retamoso, Santiago and Bardelli, Lorenzo and Filipovich, Rubén and Sommer, Carlos Augusto}, doi = {10.1016/j.jsames.2020.102852}, journal-iso = {J S AM EARTH SCI}, journal = {JOURNAL OF SOUTH AMERICAN EARTH SCIENCES}, volume = {104}, unique-id = {31609191}, issn = {0895-9811}, year = {2020}, eissn = {1873-0647} } @article{MTMT:31067280, title = {Stratigraphy of Architectural Elements of a Buried Monogenetic Volcanic System}, url = {https://m2.mtmt.hu/api/publication/31067280}, author = {Bischoff, Alan and Nicol, Andrew and Cole, Jim and Gravley, Darren}, doi = {10.1515/geo-2019-0048}, journal-iso = {OPEN GEOSCI}, journal = {OPEN GEOSCIENCES}, volume = {11}, unique-id = {31067280}, issn = {2391-5447}, abstract = {Large volumes of magma emplaced and deposited within sedimentary basins can have an impact on the architecture and geological evolution of these basins. Over the last decade, continuous improvement in techniques such as seismic volcano-stratigraphy and 3D visualisation of igneous bodies has helped increase knowledge about the architecture of volcanic systems buried in sedimentary basins. Here, we present the complete architecture of the Maahunui Volcanic System (MVS), a middle Miocene monogenetic volcanic field now buried in the offshore Canterbury Basin, South Island of New Zealand. We show the location, geometry, size, and stratigraphic relationships between 25 main intrusive, extrusive and sedimentary architectural elements, in a comprehensive volcano-stratigraphic framework that explains the evolution of the MVS from emplacement to complete burial in the host sedimentary basin. Understanding the relationships between these diverse architectural elements allows us to reconstruct the complete architecture of the MVS, including its shallow (<3 km) plumbing system, the morphology of the volcanoes, and their impact in the host sedimentary basin during their burial. The plumbing system of the MVS comprises saucer-shaped sills, dikes and sill swarms, minor stocks and laccoliths, and pre-eruptive strata deformed by intrusions. The eruptive and associated sedimentary architectural elements define the morphology of volcanoes in the MVS, which comprise deep-water equivalents of crater and cone-type volcanoes. After volcanism ceased, the process of degradation and burial of volcanic edifices formed sedimentary architectural elements such as inter-cone plains, epiclastic plumes, and canyons. In-sights from the architecture of the MVS can be used to explore for natural resources such as hydrocarbons, geothermal energy and minerals in buried and active volcanic systems elsewhere.}, keywords = {seismic reflection; buried volcanoes; monogenetic volcanic system; volcanic architectural elements}, year = {2019}, eissn = {2391-5447}, pages = {581-616} } @article{MTMT:30350207, title = {Olivine major and trace element compositions coupled with spinel chemistry to unravel the magmatic systems feeding monogenetic basaltic volcanoes}, url = {https://m2.mtmt.hu/api/publication/30350207}, author = {Jankovics, M. Éva and Sági, Tamás and Astbury, R.L. and Petrelli, M. and Kiss, Balázs and Ubide, T. and Németh, Károly and Ntaflos, T. and Harangi, Szabolcs}, doi = {10.1016/j.jvolgeores.2018.11.027}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {369}, unique-id = {30350207}, issn = {0377-0273}, year = {2019}, eissn = {1872-6097}, pages = {203-223}, orcid-numbers = {Jankovics, M. Éva/0000-0001-7079-4422; Sági, Tamás/0000-0003-4664-5472; Kiss, Balázs/0000-0003-0040-0656; Harangi, Szabolcs/0000-0003-2372-4581} } @article{MTMT:30648627, title = {Geomorphological evolution and chronology of the eruptive activity of the Columba and Cuevas volcanoes (Campo de Calatrava Volcanic Field, Ciudad Real, Central Spain)}, url = {https://m2.mtmt.hu/api/publication/30648627}, author = {Poblete Piedrabuena, Miguel Ángel and Martí Molist, Joan and Beato Bergua, Salvador and Marino Alfonso, José Luis}, doi = {10.1016/j.geomorph.2019.03.026}, journal-iso = {GEOMORPHOLOGY}, journal = {GEOMORPHOLOGY}, volume = {336}, unique-id = {30648627}, issn = {0169-555X}, year = {2019}, eissn = {1872-695X}, pages = {52-64}, orcid-numbers = {Poblete Piedrabuena, Miguel Ángel/0000-0003-1030-5310} } @misc{MTMT:30408559, title = {Initial sedimentation processes and the early geological evolution of three maar craters, Hindon Maar Complex, Otago}, url = {https://m2.mtmt.hu/api/publication/30408559}, author = {Caitlin, Murphy}, unique-id = {30408559}, year = {2018} } @book{MTMT:32006024, title = {Rocas volcaniclasticas - Depositos, Procesos y Modelos de Facies}, url = {https://m2.mtmt.hu/api/publication/32006024}, isbn = {9789879629666}, author = {Ivan, A. Petrinovic and Leandro, D'Elia}, publisher = {AAS}, unique-id = {32006024}, year = {2018} } @article{MTMT:27547833, title = {Timing the evolution of a monogenetic volcanic field: Sierra Chichinautzin, Central Mexico}, url = {https://m2.mtmt.hu/api/publication/27547833}, author = {Jaimes-Viera, M C and Martin, Del Pozzo A L and Layer, P W and Benowitz, J A and Nieto-Torres, A}, doi = {10.1016/j.jvolgeores.2018.03.013}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {356}, unique-id = {27547833}, issn = {0377-0273}, year = {2018}, eissn = {1872-6097}, pages = {225-242} } @article{MTMT:30406987, title = {Volcanic Geosites and Their Geoheritage Values Preserved in Monogenetic Neogene Volcanic Field, Bahariya Depression, Western Desert, Egypt: Implication for Climatic Change-Controlling Volcanic Eruption}, url = {https://m2.mtmt.hu/api/publication/30406987}, author = {Khalaf, Ezz El Din Abdel Hakim and Wahed, Mohamed Abdel and Maged, Azeeza and Mokhtar, Hesham}, doi = {10.1007/s12371-018-0336-6}, journal-iso = {GEOHERITAGE}, journal = {GEOHERITAGE}, volume = {11}, unique-id = {30406987}, issn = {1867-2477}, abstract = {Bahariya monogenetic volcanic field is characterized by important geomorphological features (geomorphosites), namely, sub-circular maar-tuff ring, scoria cones, and domal-shaped tumuli. These geomorphosites constitute an asset for geoeducation, geotourism and miscellaneous social activities. They offer important knowledge into the paleoenvironmental and climatic factors that affected the style of volcanism at the occasion, and eventually shaped the diverse landforms found in the volcanic field. Bahariya Oasis is exclusive for its excellent locations where many volcanic heritages of high value give evidence of phreatomagmatic and effusive-controlled phases which formed volcanic landscapes under humid to dry climate. The geoheritage and archeological sites of early settlements are abundant in the Bahariya Oasis, accentuating the scientific magnitude of this region. There have been seven geosites recognized such as (1) the scoria cone, (2) the lava flows and their surface morphological features, (3) the pseudopillow fractures, (4) columnar joints, (5) peperites, (6) tumuli, and (7) rootless cones. These geosites coupled with other unique sites define the Oasis as global geopark. The latter will consider as an excellent logistical network to endorse volcanic geosciences and raise the economic growth in this part of Bahariya Oasis. The diverse geological characteristics at the Bahariya make this area a high volcanic geodiversity that can be used for geoeducational programs and geotourism. Excursions and research programs carried out by universities will contribute to enhanced geoconservation for local sustainable development. Currently, in the Bahariya region, tourism is not well developed, but it is recommended that, roads be improved to give better accessibility to the geomorphosites, and interpretative panels, informative brochures, multi-media presentations, seminars and workshops, scientific lectures, and postcards be produced to inform tourists about the geology of the region.}, year = {2018}, eissn = {1867-2485}, pages = {855-873} } @article{MTMT:30363709, title = {Impact of climate and humans on the range dynamics of the woolly mammoth (Mammuthus primigenius) in Europe during MIS 2}, url = {https://m2.mtmt.hu/api/publication/30363709}, author = {Nadachowski, A. and Lipecki, G. and Baca, M. and Zmihorski, M. and Wilczyński, J.}, doi = {10.1017/qua.2018.54}, journal-iso = {QUATERNARY RES}, journal = {QUATERNARY RESEARCH}, volume = {90}, unique-id = {30363709}, issn = {0033-5894}, year = {2018}, eissn = {1096-0287}, pages = {439-456} } @article{MTMT:30488876, title = {The Stolpen Volcano in the Lausitz Volcanic Field (East Germany) - volcanological, petrographic and geochemical investigations at the type locality of basalt}, url = {https://m2.mtmt.hu/api/publication/30488876}, author = {Tietz, Olaf and Buechner, Joerg and Lapp, Manuel and Scholle, Thomas}, doi = {10.3190/jgeosci.275}, journal-iso = {J GEOSCI}, journal = {JOURNAL OF GEOSCIENCES}, volume = {63}, unique-id = {30488876}, issn = {1802-6222}, abstract = {The similar to 30 Ma Stolpen Volcano near Dresden (Saxony) is situated at the western margin of the Lausitz Volcanic Field. It forms a small isolated basaltic hill, the famous Stolpen Castle Hill, penetrating the granodioritic basement of the Lausitz Block and is worldwide the type locality for the term 'basalt', as coined by Agricola (1546). The volcano has always been interpreted as subvolcanic crypto-or lava dome.}, keywords = {basanite; Monogenetic volcanism; magma mingling; maar-diatreme volcano; Cenozoic landscape evolution; basalt locus typicus}, year = {2018}, eissn = {1803-1943}, pages = {299-315} } @article{MTMT:26676312, title = {Polycyclic scoria cones of the Antofagasta de la Sierra basin, Southern Puna plateau, Argentina}, url = {https://m2.mtmt.hu/api/publication/26676312}, author = {Báez, W and Nuñez, GC and Giordano, G and Viramonte, JG and Chiodi, A}, doi = {10.1144/SP446.3}, journal-iso = {GEOL SOC SPEC PUBL}, journal = {GEOLOGICAL SOCIETY SPECIAL PUBLICATIONS}, volume = {446}, unique-id = {26676312}, issn = {0305-8719}, year = {2017}, eissn = {2041-4927}, pages = {311-336} } @article{MTMT:26676310, title = {Monogenetic v. polygenetic kimberlite volcanism: In-depth examination of the Tango Extension Super Structure, Attawapiskat kimberlite field, Ontario, Canada}, url = {https://m2.mtmt.hu/api/publication/26676310}, author = {Fulop, A and Kurszlaukis, S}, doi = {10.1144/SP446.7}, journal-iso = {GEOL SOC SPEC PUBL}, journal = {GEOLOGICAL SOCIETY SPECIAL PUBLICATIONS}, volume = {446}, unique-id = {26676310}, issn = {0305-8719}, year = {2017}, eissn = {2041-4927}, pages = {205-224} } @article{MTMT:3270434, title = {A Badacsony freatomagmás piroklasztit-sorozata: következtetések a monogenetikus bazaltvulkáni működés folyamataira és formáira}, url = {https://m2.mtmt.hu/api/publication/3270434}, author = {Hencz, Mátyás and Karátson, Dávid and Németh, Károly and Biró, Tamás}, doi = {10.23928/foldt.kozl.2017.147.3.297}, journal-iso = {FÖLDTANI KÖZLÖNY}, journal = {FÖLDTANI KÖZLÖNY}, volume = {147}, unique-id = {3270434}, issn = {0015-542X}, abstract = {In this paper the first quantitative description and volcanological interpretation is given of the Badacsony Hill, the latter being the most well-known butte of the Bakony–Balaton Highland Volcanic Field (BBHVF). The pyroclast/lithics ratio of the pyroclastics was investigated by using point-counting image analysis methodology on the surfaces of hand-cut specimens. The isometrical shape of different grains allowed the obtained 2D data to be converted to 3D volume data. By using this methodology it was possible to infer the relative depth of explosions with respect to the synvolcanic surface and the syneruptive morphology; moreover, the effusive and explosive phases of the volcanism could be identified. The results of point-counting image analysis and the position and extent of the phreatomagmatic sequence on the Badacsony Hill imply that the Badacsony volcano was a monogenetic (probably polycyclic) tuff ring or shallow maar volcano. Such volcanism is associated with the interaction of hot, molten material with groundwater, and this triggers shallow explosions. The low amount of accidental lithics within the deposits confirms the tuff ring scenario; however, such a low amount of accidental lithics could also be observed within deposits from shallow maars when these were formed on a soft, unconsolidated basement. Such an alternative model is envisaged for Badacsony. The development of the volcanism can be divided into explosive and effusive phases, based on the different composition and on the relative stratigraphic position of the respective phreatomagmatic sequences. Based on these results the present study proposes a volcanic evolution model. Given the scarcity of volcanological data on the Badacsony Hill, the results presented here could give a basis for further regional volcanological investigations.}, year = {2017}, eissn = {2559-902X}, pages = {297-310}, orcid-numbers = {Hencz, Mátyás/0000-0001-9716-5714; Karátson, Dávid/0000-0003-0386-1239; Biró, Tamás/0000-0001-5198-7210} } @article{MTMT:26942921, title = {The polycyclic Lausche Volcano (Lausitz Volcanic Field) and its message concerning landscape evolution in the Lausitz Mountains (northern Bohemian Massif, Central Europe)}, url = {https://m2.mtmt.hu/api/publication/26942921}, author = {Wenger, Erik and Buechner, Joerg and Tietz, Olaf and Mrlina, Jan}, doi = {10.1016/j.geomorph.2017.04.021}, journal-iso = {GEOMORPHOLOGY}, journal = {GEOMORPHOLOGY}, volume = {292}, unique-id = {26942921}, issn = {0169-555X}, year = {2017}, eissn = {1872-695X}, pages = {193-210} } @inbook{MTMT:32065635, title = {How Polygenetic are Monogenetic Volcanoes: Case Studies of Some Complex Maar‐Diatreme Volcanoes}, url = {https://m2.mtmt.hu/api/publication/32065635}, author = {Boris, Chako Tchamabé and Gabor, Kereszturi and Németh, Károly and Gerardo, Carrasco‐Núñez}, booktitle = {Updates in Volcanology : From Volcano Modelling to Volcano Geology}, doi = {10.5772/63486}, unique-id = {32065635}, year = {2016}, pages = {355-389} } @article{MTMT:26365975, title = {Holocene volcanism of the upper McKenzie River catchment, central Oregon Cascades, USA}, url = {https://m2.mtmt.hu/api/publication/26365975}, author = {Deligne, Natalia I and Conrey, Richard M and Cashman, Katharine V and Champion, Duane E and Amidon, William H}, doi = {10.1130/B31405.1}, journal-iso = {GEOL SOC AM BULL}, journal = {GEOLOGICAL SOCIETY OF AMERICA BULLETIN}, volume = {128}, unique-id = {26365975}, issn = {0016-7606}, year = {2016}, eissn = {1943-2674}, pages = {1618-1635} } @article{MTMT:3093053, title = {Clinopyroxene with diverse origins in alkaline basalts from the western Pannonian Basin: implications from trace element characteristics}, url = {https://m2.mtmt.hu/api/publication/3093053}, author = {Jankovics, M. Éva and Taracsák, Z and Dobosi, Gábor and Embey-Isztin, Antal and Batki, Anikó and Harangi, Szabolcs and Hauzenberger, CA}, doi = {10.1016/j.lithos.2016.06.030}, journal-iso = {LITHOS}, journal = {LITHOS}, volume = {262}, unique-id = {3093053}, issn = {0024-4937}, abstract = {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.}, keywords = {Trace Elements; LA-ICP-MS; xenocryst; alkaline basalt; CLINOPYROXENE; megacryst}, year = {2016}, eissn = {1872-6143}, pages = {120-134}, orcid-numbers = {Jankovics, M. Éva/0000-0001-7079-4422; Harangi, Szabolcs/0000-0003-2372-4581} } @article{MTMT:31984235, title = {Reconstructing the evolution of an eroded Miocene caldera volcano (Yamanlar volcano, Izmir, Turkey)}, url = {https://m2.mtmt.hu/api/publication/31984235}, author = {Karaoglu, Ozgur and Brown, Richard J.}, doi = {10.1016/j.jvolgeores.2016.03.007}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {318}, unique-id = {31984235}, issn = {0377-0273}, year = {2016}, eissn = {1872-6097}, pages = {1-18}, orcid-numbers = {Karaoglu, Ozgur/0000-0003-2627-4686} } @article{MTMT:2899204, title = {A complex magmatic system beneath the Kissomlyó monogenetic volcano (western Pannonian Basin): evidence from mineral textures, zoning and chemistry}, url = {https://m2.mtmt.hu/api/publication/2899204}, author = {Jankovics, M. Éva and Harangi, Szabolcs and Németh, Károly and Kiss, Balázs and Ntaflos, T}, doi = {10.1016/j.jvolgeores.2015.04.010}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {301}, unique-id = {2899204}, issn = {0377-0273}, abstract = {Abstract Kissomlyó is a small-volume Pliocene alkaline basaltic eruptive centre located in the monogenetic Little Hungarian Plain Volcanic Field (western Pannonian Basin). It consists of a sequence of pyroclastic and effusive eruptive units: early tuff ring (unit1), pillow and columnar jointed lava (unit2), spatter cone (unit3). The tuff ring sequence is overlain by a unit of lacustrine sediments which suggests a significant time gap in the volcanic activity between the tuff ring formation and the emplacement of the lava flow. High-resolution investigation of mineral textures, zoning and chemistry as well as whole-rock geochemical analyses were performed on stratigraphically controlled samples in order to characterize the magmas represented by the distinct eruptive units and to reveal the evolution of the deep magmatic system. Based on the bulk rock geochemistry, compositionally similar magmas erupted to the surface during the entire volcanic activity. However, olivine crystals show diverse textures, zoning patterns and compositions reflecting various deep-seated magmatic processes. Five different olivine types occur in the samples. Type1 olivines represent the phenocryst sensu stricto phases, i.e., crystallised in situ from the host magma. The other olivine types show evidence for textural and compositional disequilibrium reflecting single crystals consisting of distinct portions having different origins. Type2a and type2b olivines have antecrystic cores which are derived from two distinct primitive magmas based on the different compositions of their spinel inclusions. Type4 olivines show reverse zoning whose low-Fo cores represent antecrysts from more evolved magmas. The cores of type3 and type5 olivines are xenocrysts originated from the subcontinental lithospheric mantle. These xenocrysts are surrounded by high-Fo or low-Fo growth zones suggesting that olivine xenocryst incorporation occurred at different levels and stages of magma evolution. Olivine-hosted spinel inclusions show three distinct compositional groups. Group1 spinels are very Al-rich (0–0.22 Cr#) and coexist with the antecrystic cores of type2a olivines, group2 spinels have 44.5–62.3 Cr#s and occur in the phenocryst s.s. (type 1) olivines, while group3 spinels are very rich in Cr (68.4–81.3 Cr#) and appear in the antecrystic cores of type2b olivines. Based on the integrated analysis of olivines and their spinel inclusions four magmatic environments were involved into the evolution of the magmatic system. These crystals bear evidence of various petrogenetic processes playing role in the formation of the erupted magma batches: fractional crystallization, olivine (+ spinel) recycling, xenocryst incorporation, magma recharge and interaction of multiple small magma packets in a multi-level magmatic system. Clinopyroxene-melt thermobarometry yields an average pressure of 6.6 ± 0.9 kbar corresponding to a depth of about 25 km, implying that the main level of final clinopyroxene fractionation could have occurred around the Moho (in the lowermost crust). This study shows that high-resolution mineral-scale analyses carried out through monogenetic sequences provide a unique, more detailed insight into the evolution of these “simple” magmatic systems as crystal growth stratigraphy and compositions yield direct evidence for various petrogenetic processes which are usually obscured in the whole-rock geochemistry.}, keywords = {alkaline basalt; olivine; monogenetic volcano; Spinel; Open-system processes; Magma storage}, year = {2015}, eissn = {1872-6097}, pages = {38-55}, orcid-numbers = {Jankovics, M. Éva/0000-0001-7079-4422; Harangi, Szabolcs/0000-0003-2372-4581; Kiss, Balázs/0000-0003-0040-0656} } @inbook{MTMT:2859789, title = {A Bakony–Balaton–felvidék vulkáni terület miocén–pleisztocén bazaltvulkanizmusa}, url = {https://m2.mtmt.hu/api/publication/2859789}, author = {Kónya, Péter}, booktitle = {A Bakony -Balaton-felvidék vulkáni terület ásványai}, unique-id = {2859789}, year = {2015}, pages = {41-62} } @article{MTMT:25688525, title = {Volcanic Geotopes and Their Geosites Preserved in an Arid Climate Related to Landscape and Climate Changes Since the Neogene in Northern Saudi Arabia: Harrat Hutaymah (Hai'il Region)}, url = {https://m2.mtmt.hu/api/publication/25688525}, author = {Moufti, Mohammed R and Németh, Károly and El-Masry, Nabil and Qaddah, Atef}, doi = {10.1007/s12371-014-0110-3}, journal-iso = {GEOHERITAGE}, journal = {GEOHERITAGE}, volume = {7}, unique-id = {25688525}, issn = {1867-2477}, year = {2015}, eissn = {1867-2485}, pages = {103-118}, orcid-numbers = {El-Masry, Nabil/0000-0002-9272-9776; Qaddah, Atef/0000-0002-5924-382X} } @article{MTMT:25663921, title = {Monogenetic volcanism: personal views and discussion}, url = {https://m2.mtmt.hu/api/publication/25663921}, author = {Németh, Károly and Kereszturi, G}, doi = {10.1007/s00531-015-1243-6}, journal-iso = {INT J EARTH SCI}, journal = {INTERNATIONAL JOURNAL OF EARTH SCIENCES}, volume = {104}, unique-id = {25663921}, issn = {1437-3254}, year = {2015}, eissn = {1437-3262}, pages = {2131-2146} } @article{MTMT:25672793, title = {Size-distribution of scoria cones within the Egrikuyu Monogenetic Field (Central Anatolia, Turkey)}, url = {https://m2.mtmt.hu/api/publication/25672793}, author = {Uslular, G and Gencalioglu-Kuscu, G and Arcasoy, A}, doi = {10.1016/j.jvolgeores.2015.05.006}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {301}, unique-id = {25672793}, issn = {0377-0273}, year = {2015}, eissn = {1872-6097}, pages = {56-65} } @article{MTMT:2379881, title = {Origin and ascent history of unusually crystal-rich alkaline basaltic magmas from the western Pannonian Basin}, url = {https://m2.mtmt.hu/api/publication/2379881}, author = {Jankovics, M. Éva and Dobosi, Gábor and Embey-Isztin, Antal and Kiss, Balázs and Sági, Tamás and Harangi, Szabolcs and Ntaflos, T}, doi = {10.1007/s00445-013-0749-7}, journal-iso = {B VOLCANOL}, journal = {BULLETIN OF VOLCANOLOGY}, volume = {75}, unique-id = {2379881}, issn = {0258-8900}, keywords = {Monogenetic volcanism; xenolith; xenocryst; alkaline basalt; Magma ascent rate; Crystal rich; Ascent history}, year = {2013}, eissn = {1432-0819}, orcid-numbers = {Jankovics, M. Éva/0000-0001-7079-4422; Kiss, Balázs/0000-0003-0040-0656; Sági, Tamás/0000-0003-4664-5472; Harangi, Szabolcs/0000-0003-2372-4581} } @article{MTMT:25663895, title = {Variations in eruptive style and depositional processes of Neoproterozoic terrestrial volcano-sedimentary successions in the Hamid area, North Eastern Desert, Egypt}, url = {https://m2.mtmt.hu/api/publication/25663895}, author = {Khalaf, Ezz El Din Abdel Hakim}, doi = {10.1016/j.jafrearsci.2013.02.009}, journal-iso = {J AFR EARTH SCI}, journal = {JOURNAL OF AFRICAN EARTH SCIENCES}, volume = {83}, unique-id = {25663895}, issn = {1464-343X}, year = {2013}, eissn = {1879-1956}, pages = {74-103} } @article{MTMT:22934112, title = {Growth, destruction and volcanic facies architecture of three volcanic centres in the Miocene Usak-Gure basin, western Turkey: Subaqueous-subaerial volcanism in a lacustrine setting}, url = {https://m2.mtmt.hu/api/publication/22934112}, author = {Karaoglu, O and Helvaci, C}, doi = {10.1016/j.jvolgeores.2012.06.028}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {245}, unique-id = {22934112}, issn = {0377-0273}, year = {2012}, eissn = {1872-6097}, pages = {1-20} } @article{MTMT:1938452, title = {Structural and morphometric irregularities of eroded Pliocene scoria cones at the Bakony-Balaton Highland Volcanic Field, Hungary}, url = {https://m2.mtmt.hu/api/publication/1938452}, author = {Kereszturi, G and Németh, Károly}, doi = {10.1016/j.geomorph.2011.08.005}, journal-iso = {GEOMORPHOLOGY}, journal = {GEOMORPHOLOGY}, volume = {136}, unique-id = {1938452}, issn = {0169-555X}, year = {2012}, eissn = {1872-695X}, pages = {45-58} } @{MTMT:31985553, title = {Monogenetic Basaltic Volcanoes: Genetic Classification, Growth, Geomorphology and Degradation}, url = {https://m2.mtmt.hu/api/publication/31985553}, author = {Kereszturi, Gabor and Németh, Károly}, booktitle = {Updates in Volcanology : New Advances in Understanding Volcanic Systems}, doi = {10.5772/51387}, unique-id = {31985553}, year = {2012}, pages = {3-89} } @{MTMT:1936976, title = {An Overview of the Monogenetic Volcanic Fields of the Western Pannonian Basin: Their Field Characteristics and Outlook for Future Research from a Global Perspective}, url = {https://m2.mtmt.hu/api/publication/1936976}, author = {Németh, Károly}, booktitle = {Updates in Volcanology - A Comprehensive Approach to Volcanological Problems}, unique-id = {1936976}, year = {2012}, pages = {27-52} } @article{MTMT:2017075, title = {Facies architecture of an isolated long-lived, nested polygenetic silicic tuff ring erupted in a braided river system: The Los Loros volcano, Mendoza, Argentina}, url = {https://m2.mtmt.hu/api/publication/2017075}, author = {Németh, Károly and Risso, C and Nullo, F and Smith, I E M and Pécskay, Zoltán}, doi = {10.1016/j.jvolgeores.2012.06.010}, journal-iso = {J VOLCANOL GEOTH RES}, journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH}, volume = {239-240}, unique-id = {2017075}, issn = {0377-0273}, abstract = {Los Loros is a small, well-preserved ~. 1. million. year old volcanic depression. The circular ~. 50. m deep and ~. 1. km broad crater is inferred to be a complex small-volume volcano; with multiple eruptive phases produced by magmatic and minor phreatomagmatic explosive eruptions in two distinct eruptive episodes and consequently produced two tuff rings separated by fluvial deposits and/or paleosols. Geochemical data, alongside a new age determination, underlies the fact that the volcano is far older than had been expected from its morphology, and its composition represents a bimodal nature with eruptive products belonging to a typical intraplate basalt to phonolite and a crustal influenced intra-continental rhyolitic lineage. Tuff ring 1 erupted into a braided river system that has already accumulated channelised volcaniclastic conglomerates from distal sources. Tuff ring 2 formed in the same place as Tuff ring 1 and produced welded pyroclastic density current deposits, a capping lava flow and a single intermediate block-and-ash flow deposit which all prevented the edifice from erosion. Los Loros is a small-volume volcano, similar to mafic tuff rings, however, its magma compositions, eruption styles, and inter-eruptive breaks suggest, that it closely resembles a volcanic architecture commonly associated with large, composite volcanoes. © 2012 Elsevier B.V.}, keywords = {tuff ring; phreatomagmatic; MAAR; lava dome; Welding; Silicic; Braided river}, year = {2012}, eissn = {1872-6097}, pages = {33-48} } @article{MTMT:1609690, title = {Hungarian National Report on IAVCEI 2007-2010}, url = {https://m2.mtmt.hu/api/publication/1609690}, author = {Dobosi, Gábor and Harangi, Szabolcs}, doi = {10.1556/AGeod.46.2011.2.8}, journal-iso = {ACTA GEODAET GEOPHYS HUNG}, journal = {ACTA GEODAETICA ET GEOPHYSICA HUNGARICA}, volume = {46}, unique-id = {1609690}, issn = {1217-8977}, year = {2011}, eissn = {1587-1037}, pages = {264-282}, orcid-numbers = {Harangi, Szabolcs/0000-0003-2372-4581} } @article{MTMT:1936967, title = {Shallow-seated controls on the evolution of the Upper Pliocene Kopasz-hegy nested monogenetic volcanic chain in the Western Pannonian Basin (Hungary)}, url = {https://m2.mtmt.hu/api/publication/1936967}, author = {Kereszturi, G and Németh, Károly}, doi = {10.2478/v10096-011-0038-3}, journal-iso = {GEOL CARPATH}, journal = {GEOLOGICA CARPATHICA}, volume = {62}, unique-id = {1936967}, issn = {1335-0552}, year = {2011}, eissn = {1336-8052}, pages = {535-546} } @article{MTMT:1719673, title = {The role of collapsing and cone rafting on eruption style changes and final cone morphology: Los Morados scoria cone, Mendoza, Argentina}, url = {https://m2.mtmt.hu/api/publication/1719673}, author = {Németh, Károly and Risso, C and Nullo, F and Kereszturi, G}, doi = {10.2478/s13533-011-0008-4}, journal-iso = {CENT EUR J GEOSCI}, journal = {CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES}, volume = {3}, unique-id = {1719673}, issn = {2081-9900}, abstract = {Payún Matru Volcanic Field is a Quaternary monogenetic volcanic field that hosts scoria cones with perfect to breached morphologies. Los Morados complex is a group of at least four closely spaced scoria cones (Los Morados main cone and the older Cones A, B, and C). Los Morados main cone was formed by a long lived eruption of months to years. After an initial Hawaiian-style stage, the eruption changed to a normal Strombolian, conebuilding style, forming a cone over 150 metres high on a northward dipping (∼4°) surface. An initial cone gradually grew until a lava flow breached the cone's base and rafted an estimated 10% of the total volume. A sudden sector collapse initiated a dramatic decompression in the upper part of the feeding conduit and triggered violent a Strombolian style eruptive stage. Subsequently, the eruption became more stable, and changed to a regular Strombolian style that partially rebuilt the cone. A likely increase in magma flux coupled with the gradual growth of a new cone caused another lava flow outbreak at the structurally weakened earlier breach site. For a second time, the unstable flank of the cone was rafted, triggering a second violent Strombolian eruptive stage which was followed by a Hawaiian style lava fountain stage. The lava fountaining was accompanied by a steady outpour of voluminous lava emission accompanied by constant rafting of the cone flank, preventing the healing of the cone. Santa Maria is another scoria cone built on a nearly flat pre-eruption surface. Despite this it went through similar stages as Los Morados main cone, but probably not in as dramatic a manner as Los Morados. In contrast to these examples of large breached cones, volumetrically smaller cones, associated to less extensive lava flows, were able to heal raft/collapse events, due to the smaller magma output and flux rates. Our evidence shows that scoria cone growth is a complex process, and is a consequence of the magma internal parameters (e.g. volatile content, magma flux, recharge, output volume) and external conditions such as inclination of the pre-eruptive surface where they grew and thus gravitational instability. © 2011 © Versita Warsaw and Springer-Verlag Wien.}, keywords = {SCORIA CONE; Strombolian, Hawaiian; pahoehoe; lava spatter; debris avalanche; clastogenic lava flow; breached cone; agglutinate; aa lava}, year = {2011}, eissn = {1896-1517}, pages = {102-118} } @article{MTMT:1384579, title = {Neogene-quaternary volcanic forms in the Carpathian-Pannonian region: A review}, url = {https://m2.mtmt.hu/api/publication/1384579}, author = {Lexa, J and Seghedi, I and Németh, Károly and Szakács, A and Konečný, V and Pécskay, Zoltán and Fülöp, A and Kovacs, M}, doi = {10.2478/v10085-010-0024-5}, journal-iso = {CENT EUR J GEOSCI}, journal = {CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES}, volume = {2}, unique-id = {1384579}, issn = {2081-9900}, abstract = {Neogene to Quaternary volcanic/magmatic activity in the Carpathian-Pannonian Region (CPR) occurred between 21 and 0.1 Ma with a distinct migration in time from west to east. It shows a diverse compositional variation in response to a complex interplay of subduction with roll-back, back-arc extension, collision, slab break-off, delamination, strike-slip tectonics and microplate rotations, as well as in response to further evolution of magmas in the crustal environment by processes of differentiation, crustal contamination, anatexis and magma mixing. Since most of the primary volcanic forms have been affected by erosion, especially in areas of post-volcanic uplift, based on the level of erosion we distinguish: (1) areas eroded to the basement level, where paleovolcanic reconstruction is not possible; (2) deeply eroded volcanic forms with secondary morphology and possible paleovolcanic reconstruction; (3) eroded volcanic forms with remnants of original morphology preserved; and (4) the least eroded volcanic forms with original morphology quite well preserved. The large variety of volcanic forms present in the area can be grouped in a) monogenetic volcanoes and b) polygenetic volcanoes and their subsurface/intrusive counterparts that belong to various rock series found in the CPR such as calc-alkaline magmatic rock-types (felsic, intermediate and mafic varieties) and alkalic types including K-alkalic, shoshonitic, ultrapotassic and Na-alkalic. The following volcanic/subvolcanic forms have been identified: (i) domes, shield volcanoes, effusive cones, pyroclastic cones, stratovolcanoes and calderas with associated intrusive bodies for intermediate and basic calc-alkaline volcanism; (ii) domes, calderas and ignimbrite/ash-flow fields for felsic calc-alkaline volcanism and (iii) dome flows, shield volcanoes, maars, tuffcone/tuff-rings, scoria-cones with or without related lava flow/field and their erosional or subsurface forms (necks/ plugs, dykes, shallow intrusions, diatreme, lava lake) for various types of K- and Na-alkalic and ultrapotassic magmatism. Finally, we provide a summary of the eruptive history and distribution of volcanic forms in the CPR using several sub-region schemes.}, keywords = {Pannonian Basin; carpathians; volcanoes; volcanic forms; rhyolite; Quaternary; Neogene; dacites; andesites; alkali basalts}, year = {2010}, eissn = {1896-1517}, pages = {207-270} } @article{MTMT:1384576, title = {Modern analogues for Miocene to Pleistocene alkali basaltic phreatomagmatic fields in the Pannonian Basin: "Soft-substrate" to "combined" aquifer controlled phreatomagmatism in intraplate volcanic fields}, url = {https://m2.mtmt.hu/api/publication/1384576}, author = {Németh, Károly and Cronin, S and Haller, M and Brenna, M and Csillag, Gábor}, doi = {10.2478/v10085-010-0013-8}, journal-iso = {CENT EUR J GEOSCI}, journal = {CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES}, volume = {2}, unique-id = {1384576}, issn = {2081-9900}, abstract = {The Pannonian Basin (Central Europe) hosts numerous alkali basaltic volcanic fields in an area similar to 200 000 km2. These volcanic fields were formed in an approximate time span of 8 million years producing smallvolume volcanoes typically considered to be monogenetic. Polycyclic monogenetic volcanic complexes are also common in each field however. The original morphology of volcanic landforms, especially phreatomagmatic volcanoes, is commonly modified. by erosion, commonly aided by tectonic uplift. The phreatomagmatic volcanoes eroded to the level of their sub-surface architecture expose crater to conduit filling as well as diatreme facies of pyroclastic rock assemblages. Uncertainties due to the strong erosion influenced by tectonic uplifts, fast and broad climatic changes, vegetation cover variations, and rapidly changing fluvio-lacustrine events in the past 8 million years in the Pannonian Basin have created a need to reconstruct and visualise the paleoenvironment into which the monogenetic volcanoes erupted. Here phreatomagmatic volcanic fields of the Miocene to Pleistocene western Hungarian alkali basaltic province have been selected and compared with modern phreatomagmatic fields. It has been concluded that the Auckland Volcanic Field (AVF) in New Zealand could be viewed as a prime modern analogue for the western Hungarian phreatomagmatic fields by sharing similarities in their pyroclastic successions textures such as pyroclast morphology, type, juvenile particle ratio to accidental lithics. Beside the AVF two other, morphologically more modified volcanic fields (Pali Aike, Argentina and Jeju, Korea) show similar features to the western Hungarian examples, highlighting issues such as preservation potential of pyroclastic successions of phreatomagmatic volcanoes.}, keywords = {sideromelane; tuff ring; phreatomagmatic; SCORIA CONE; MAAR; VOLCANIC FIELD; volcanic glass; porous media aquifer; monogenetic; fracture-controlled aquifer}, year = {2010}, eissn = {1896-1517}, pages = {339-361} } @article{MTMT:1384581, title = {New advances of understanding physical volcanology processes in the Carpathian-Balkan Region from a global perspective}, url = {https://m2.mtmt.hu/api/publication/1384581}, author = {Németh, Károly and Pécskay, Zoltán}, doi = {10.2478/v10085-010-0025-4}, journal-iso = {CENT EUR J GEOSCI}, journal = {CENTRAL EUROPEAN JOURNAL OF GEOSCIENCES}, volume = {2}, unique-id = {1384581}, issn = {2081-9900}, year = {2010}, eissn = {1896-1517}, pages = {200-206} }