TY - JOUR AU - Zakharovskyi, Vladyslav AU - Németh, Károly AU - Gravis, Ilmars AU - Twemlow, Chris TI - Geosite Recognition Based on Qualitative-Quantitative Assessment in the Light of Core Geological Features of a Mio-Pliocene Volcanic Arc Setting of the Coromandel Peninsula, New Zealand JF - GEOHERITAGE J2 - GEOHERITAGE VL - 16 PY - 2024 IS - 1 SP - 19 SN - 1867-2477 DO - 10.1007/s12371-024-00933-1 UR - https://m2.mtmt.hu/api/publication/34562693 ID - 34562693 AB - The far north part of Coromandel Peninsula can be considered a good place for geoeducation and geotourism, which is justified by the remnants of Miocene-Pleistocene volcanic integration with marine environment. These processes in collaboration with old Jurassic and quaternary sediments create a diverse geological and geomorphological constructions forming the abiotic environment of areas surrounding Port Jackson and Fletcher Bay. These two locations have been chosen as two main campsites of the north Coromandel Peninsula, which are maintained by the Department of Conservation (DOC) of Coromandel Peninsula. Hence, the campsites should be considered as main places for camping for the trips of different purposes. They provide an access costal way and/or trails leading to the main geologically important locations presenting some knowable features like Pinnacles and Sugar Loaf spread through the region. To highlight these locations of interests, “geosites,” we developed qualitative-quantitative assessment of geodiversity for geosite recognition based on 8-m DEM and 1:1250,000 scale geological map and QGIS (3.28 “Firenze”) software. The methodology utilizing 8-point evaluation system applied for geological formations of the studied region and its multiplication with morphological slope degree. The result of assessment has been expanded and justified with geological, cultural, and geomorphological database acquired from literature review and direct field trips of the studied areas. The conclusion demonstrates the main geological knowledge of recognized geosites together with description of drawbacks and possible obstacles for tourism and education in the region of the northern Coromandel Peninsula. LA - English DB - MTMT ER - TY - JOUR AU - Szarka, László Csaba TI - A jelenkori felmelegedés lehetséges hatótényezőiről • On the Potential Drivers of Current Global Warming JF - MAGYAR TUDOMÁNY J2 - MAGYAR TUDOMÁNY VL - 185 PY - 2024 IS - 2 SP - 244 EP - 259 PG - 16 SN - 0025-0325 DO - 10.1556/2065.185.2024.2.8 UR - https://m2.mtmt.hu/api/publication/34558899 ID - 34558899 AB - E tanulmány összefoglalja egy 2021 augusztusában megjelent – a jelenlegi felmelegedés statisztikailag kimutatható hatótényezőit elemző – publikáció eredményeit, nemzetközi fogadtatását, valamint a vitákban felmerült kérdések alapján elvégzett és a nemzetközi folyóiratokban közzétett új vizsgálatok tudományos következtetéseit. A cikk ellentmond az IPCC (Intergovernmental Panel on Climate Change) magabiztos állításának, miszerint természetes változások nem magyarázhatják a jelenlegi klímaváltozást. A kiterjesztett elemzések megerősítették az eredeti 2021-es eredményeket. Ezek szerint az IPCC állítása csak abban az esetben lehet megalapozott, ha (1) a napsugárzási idősor valóban olyan csekély változékonyságú, mint amilyennek az IPCC feltételezi, valamint, ha (2) a szárazföldi felszínhőmérsékleti idősorban az idővel elvárosiasodó meteorológiai állomásoknak csakugyan nincs torzító hatásuk. Bármennyire is nem akarja az IPCC hivatalosan tudomásul venni, a tudományos szakirodalomban számos olyan nagy változékonyságú napsugárzási idősor létezik, amelyek képesek lényegileg megmagyarázni a csak vidéki jellegű meteorológiai állomásokra korlátozódó hőmérsékleti idősor oszcillációit, egészen 1850-ig visszamenően. Sajnos nem tudni biztosan, hogy melyik napsugárzási idősor áll a legközelebb a valósághoz. Valójában az is valószínűtlen, hogy akármilyen gondos statisztikai elemzés elvezethet az okok feltárásához. Az viszont biztos, hogy a tudománynak sokkal mélyebben kellene foglalkoznia mindenféle természeti (Nap–Föld) változás megfigyelésével és számszerűsítésével. This paper summarizes the results of a paper published in August 2021, its international reception, and the scientific conclusions of new studies based on the issues raised in the debate and published in international journals. The article contradicts the IPCC’s (Intergovernmental Panel on Climate Change) confident assertion that natural changes cannot explain current climate change. Extended analyses confirmed the original 2021 results. These suggest that the IPCC’s claim can only be substantiated if (1) the solar radiation time series indeed has such low variability, as the IPCC assumes, and (2) if meteorological stations that have become more urbanized over time do not have a distorting effect on the land surface temperature time series. As much as the IPCC may not want to officially acknowledge it, there are a number of highly variable solar radiation time series in the scientific literature that can substantially explain the oscillations in the temperature time series, limited to rural meteorological stations, going back to 1850. Unfortunately, it is not known for sure which solar radiation time series is the closest to the real one. Indeed, it is unlikely that any careful statistical analysis can lead to the discovery of the causes. What is certain, however, is that science should be much more deeply engaged in observing and quantifying all kinds of natural (Sun–Earth) changes. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Haranginé Lukács, Réka AU - Guillong, M AU - Szepesi, János AU - Szymanowski, D AU - Portnyagin, M AU - Józsa, Sándor AU - Bachmann, O AU - Petrelli, M AU - Müller, S AU - Schiller, D AU - Fodor, László AU - Chelle-Michou, C AU - Harangi, Szabolcs TI - Mid-Miocene silicic explosive volcanism of the Tokaj Mts., eastern-central Europe: Eruption chronology, geochemical fingerprints and petrogenesis JF - GONDWANA RESEARCH J2 - GONDWANA RES VL - 130 PY - 2024 SP - 53 EP - 77 PG - 25 SN - 1342-937X DO - 10.1016/j.gr.2024.01.004 UR - https://m2.mtmt.hu/api/publication/34528699 ID - 34528699 N1 - Institute for Geological and Geochemical Research, HUN-REN Research Centre for Astronomy and Earth Sciences (MTA Centre of Excellence), Budaörsi út 45, Budapest, H-1112, Hungary HUN-REN-ELTE Volcanology Research Group, Pázmány P. sétány 1/C, Budapest, 1117, Hungary Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zürich, Clausiusstrasse 25, Zürich, 8092, Switzerland HUN-REN Institute for Nuclear Research, Bem tér 18/c, Debrecen, 4026, Hungary GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstr. 1-3, Kiel, 24148, Germany ELTE Eötvös Loránd University, Institute of Geography and Earth Sciences, Department of Petrology and Geochemistry, Pázmány P. s. 1/C, Budapest, 1117, Hungary Department of Physics and Geology, University of Perugia, Piazza Università, Perugia, 06100, Italy Institute of Geosciences, Kiel University, Ludewig-Meyn-Strasse 10, Kiel, 24118, Germany Department of Chemistry and Physics of Materials, University of Salzburg, Jakob Haringer Straße 2a, Salzburg, A-5020, Austria HUN-REN Institute of Earth Physics and Space Science, Csatkai E. u. 6-8, Sopron, 9400, Hungary ELTE Eötvös Loránd University, Institute of Geography and Earth Sciences, Department of Geology, Pázmány P. s. 1/C, Budapest, 1117, Hungary Export Date: 13 February 2024 Correspondence Address: Lukács, R.; Institute for Geological and Geochemical Research, Budaörsi út 45, Hungary; email: lukacs.reka@csfk.org LA - English DB - MTMT ER - TY - JOUR AU - Kárpi, Marcell AU - Baracza, Mátyás Krisztián AU - Szalai, Sándor TI - Archeogeophysical application of non-traditional geoelectric arrays. a case study in a north-east Hungary site TS - a case study in a north-east Hungary site JF - GRADUS J2 - GRADUS VL - 11 PY - 2024 IS - 1 PG - 7 SN - 2064-8014 DO - 10.47833/2024.1.ENG.001 UR - https://m2.mtmt.hu/api/publication/34528126 ID - 34528126 AB - With the continuous development of multielectrode geoelectrical tomography (ERT) as a geophysical technique, we became able to detect small size targets. In this paper, we present ERT interpretation results obtained at an archaeological site in Szendrő village in northeastern Hungary, where a 17th century fortress once stood. Several historical notes and a collapsed entrance recall the existence of tunnels under the fortress and a water well of uncertain depth. To detect these structures, geoelectrical multielectrode measurements were carried out using conventional and quasi-null arrays. The quasi-null array applies the arrangement of the current (A and B) and potential electrodes (M and N) in a special way, i.e., the electrodes A, M, B, N follow each other in line in special distances from each other. The horizontal sensitivity of the resistivity profiling method using these types of arrays has been proven to be better than that of the Wenner or other conventional arrays. The comparative study aims not just to investigate the archeological features, but to test the sensitivity of the non-traditional quasi-null arrays to these two-dimensional inhomogeneities. As a result, the optimal array can be chosen, and the identification and delineation of shallow structures can be made more reliably. In this paper, we present the very first archeogeophysical field measurements carried out by the gamma quasi null array (γqnull). LA - English DB - MTMT ER - TY - JOUR AU - Szűcs, Péter AU - Dobróka, Mihály AU - Turai, Endre AU - Szarka, László Csaba AU - Ilyés, Csaba AU - Hemida, Mohamed Hamdy Eid AU - Szabó, Norbert Péter TI - Combined inversion and statistical workflow for advanced temporal analysis of the Nile River’s long term water level records JF - JOURNAL OF HYDROLOGY J2 - J HYDROL VL - 630 PY - 2024 PG - 24 SN - 0022-1694 DO - 10.1016/j.jhydrol.2024.130693 UR - https://m2.mtmt.hu/api/publication/34527979 ID - 34527979 LA - English DB - MTMT ER - TY - JOUR AU - Andrade Albuquerque Mororó, Emanuel AU - Berkesi, Márta AU - Zajacz, Z. AU - Guzmics, Tibor TI - Rare earth element transport and mineralization linked to fluids from carbonatite systems JF - GEOLOGY J2 - GEOLOGY VL - x PY - 2024 SP - x SN - 0091-7613 DO - 10.1130/G51531.1 UR - https://m2.mtmt.hu/api/publication/34520931 ID - 34520931 N1 - Funding Agency and Grant Number: National Research, Development, and Innovation Office of Hungary (NKFIH) [FK-132418, K-142855] Funding text: We thank the editor M. Norman and the reviewers, M. Steele-MacInnis, H.-R. Fan, and an anonymous reviewer, for constructive comments, and M. Anenburg for discussions that benefited earlier drafts of this work. This research received financial support from the National Research, Development, and Innovation Office of Hungary (NKFIH) (FK-132418 and K-142855), awarded to M. Berkesi and T. Guzmics, respectively. AB - Rare earth elements are critical constituents for modern technologies, and some of their largest natural resource deposits are related to carbonatite systems. However, the mechanisms leading to rare earth element mineralization and the role of magmatic fluids in carbonatite systems remain poorly understood. Here, we present the first in situ characterization of fluids and their trace-element compositions in natural carbonatite systems by studying secondary quartz-hosted fluid inclusions from Oldoinyo Lengai volcano. By comparing our data to other fluids and melts from various carbonatite systems, we constructed a model for fluid-mediated rare earth element transport and mineralization. We show that carbonatite-related fluids are rich in alkali-carbonate + sulfate + chloride and CO2, but poor in H2O, and they can be significant carriers of rare earth elements (>1600 ppm). We argue that fluid CO2 contents are essential to preclude or slow down the interaction with wall rock during migration and that fluid-mediated rare earth element mineralization occurs when partial pressure of CO2 decreases in the fluid (i.e., during degassing). LA - English DB - MTMT ER - TY - JOUR AU - Dóniz-Páez, Javier AU - Becerra-Ramírez, Rafael AU - Németh, Károly AU - Gosálvez, Rafael U. AU - Escobar, Estela TI - Geomorfositios de interés geoturístico del volcán monogenético Tajogaite, erupción de 2021 (La Palma, Islas Canarias, España) JF - GEOFISICA INTERNACIONAL J2 - GEOFIS INT VL - 63 PY - 2024 IS - 1 SP - 729 EP - 746 PG - 18 SN - 0016-7169 DO - 10.22201/igeof.2954436xe.2024.63.1.1731 UR - https://m2.mtmt.hu/api/publication/34485866 ID - 34485866 AB - Las Islas Canarias (España) son un conjunto de islas volcánicas oceánicas localizadas en la placa africana y en la latitud subtropical. En los últimos 500 años han ocurrido dieciséis erupciones históricas y la última, la del volcán monogenético Tajogaite, tuvo lugar en La Palma en 2021 (19 de septiembre-13 de diciembre) y, además de sus profundos impactos negativos en la comunidad, generó un importante y diverso geopatrimonio volcánico con un enorme potencial para el geoturismo. El objetivo principal de este trabajo es identificar, seleccionar, caracterizar y valorar geomorfositios de elevado interés geoturístico que sean representativos del patrimonio natural y cultural tanto del paisaje previo afectado por la erupción, como del generado durante la misma y que puedan ser visitados in situ o de manera virtual. La metodología empleada se basa en trabajos de campo y vídeos y fotos de vuelos de dron registrados durante y después de la erupción y la evaluación de su geopatrimonio. Las principales geoformas están asociadas con los edificios volcánicos y los importantes campos de lava. También se han identificado formas de erosión y acumulación. Igualmente, la caída de piroclastos y la emisión de coladas de lava afectaron a zonas urbanas y rurales generando un importante patrimonio asociado a los efectos sobre viviendas, infraestructuras y cultivos. Se han seleccionado y estudiado dieciséis geomorfositios de los cuales seis se generaron durante la erupción y el resto están relacionados con los paisajes naturales y rurales previos a la misma. A partir de los geomorfositios las autoridades y empresas pueden diseñar geoitinerarios, reales y/o virtuales. LA - Spanish DB - MTMT ER - TY - JOUR AU - Velasco Herrera, Victor Manuel AU - Soon, Willie Wei-Hock AU - Babynets, Nelya AU - Muraközy, Judit AU - Tlatov, Andrey G. AU - Nagovitsyn, Yury A. AU - Qiu, Shican AU - Švanda, Michal AU - Velasco Herrera, Policarpo Arol TI - Reconstructing daily group sunspot numbers since the maunder minimum with objective inter-calibration algorithms JF - ADVANCES IN SPACE RESEARCH J2 - ADV SPACE RES VL - 73 PY - 2024 IS - 5 SP - 2788 EP - 2815 PG - 28 SN - 0273-1177 DO - 10.1016/j.asr.2023.12.011 UR - https://m2.mtmt.hu/api/publication/34484310 ID - 34484310 LA - English DB - MTMT ER - TY - JOUR AU - Czecze, Barbara AU - Kalmár, Dániel AU - Marótiné Kiszely, Márta AU - Süle, Bálint AU - Fodor, László TI - Earthquake swarms near the Mór Graben, Pannonian Basin (Hungary): implication for neotectonics JF - JOURNAL OF SEISMOLOGY J2 - J SEISMOL VL - 28 PY - 2024 SP - 19 EP - 38 PG - 20 SN - 1383-4649 DO - 10.1007/s10950-023-10181-5 UR - https://m2.mtmt.hu/api/publication/34470927 ID - 34470927 N1 - Kövesligethy Radó Seismological Observatory, Institute of Earth Physics and Space Science, Budapest, Hungary Department of Geophysics and Space Sciences, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, Hungary Institute of Earth Physics and Space Science, Sopron, Hungary Department of Geology, Institute of Geography and Earth Sciences, Eövös Loránd University, Budapest, Hungary Export Date: 2 January 2024 CODEN: DXUEF Correspondence Address: Czecze, B.; Kövesligethy Radó Seismological Observatory, Hungary; email: czecze.barbara@hun-ren.epss.hu LA - English DB - MTMT ER - TY - JOUR AU - Hencz, Mátyás AU - Biró, Tamás AU - Németh, Károly AU - Szakács, Alexandru AU - Portnyagin, Maxim AU - Cseri, Zoltán AU - Pécskay, Zoltán AU - Szabó, Csaba AU - Müller, Samuel AU - Karátson, Dávid TI - Lithostratigraphy of the ignimbrite-dominated Miocene Bükk Foreland Volcanic Area (Central Europe) JF - JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH J2 - J VOLCANOL GEOTH RES VL - 445 PY - 2024 SN - 0377-0273 DO - 10.1016/j.jvolgeores.2023.107960 UR - https://m2.mtmt.hu/api/publication/34412174 ID - 34412174 N1 - Export Date: 1 January 2024 Correspondence Address: Hencz, M.; ELTE Eötvös Loránd University, Hungary; email: hencz.matyas@epss.hun-ren.hu AB - This study documents the volcanic evolution of the Miocene silicic Bükk Foreland Volcanic Area (BFVA), Northern Hungary (Central Europe) at an event-scale. The BFVA is a deeply eroded and dissected volcanic field dominated by multiple, several 10-m thick, valley-filling silicic ignimbrite units, which are chemically and texturally very similar to each other. Hence, establishing lateral correlation is a real challenge due to the sporadic and small-scale outcrops and lack of stratotypes. Detailed field observations allowed us to identify eleven lithological members including fourteen eruption events and establish a nearly complete lithostratigraphic correlation between fifteen outcrops across the BFVA. Primary pyroclastic material of each member was sampled, and volcanic glass was analyzed for major and trace element composition. The geochemical results confirm the field-based classification of the members and enable the correlation of distinct outcrops. The major and trace element composition of the glassy pyroclasts of each member of the BFVA served as basis to create a field-wide chemical reference database for regional correlational studies. Here, a new lithostratigraphic classification scheme consisting of one formation and eleven members is presented, which reflects the challenges unraveling the stratigraphy of ancient volcanic terrains. The field-based event-scale lithostratigraphy of the BFVA suggests a wet, partly sea-covered depositional environment in the close vicinity of the eruption centers providing favorable conditions to ‘fuel’ silicic explosive phreatomagmatism. On the contrary, paleosol horizons formed after almost each major eruption event or sequence suggests an overall near-coast terrestrial environment for the BFVA, where the emplacement of the pyroclastic material occurred. LA - English DB - MTMT ER -