@article{MTMT:34059446, title = {Hungarian Contribution in EM methods (2019-2022) - IAGA Division VI : Electromagnetic Induction in the Earth and Planetary Bodies}, url = {https://m2.mtmt.hu/api/publication/34059446}, author = {Szarka, László Csaba and Ádám, Antal and Novák, Attila and Rubóczki, Tibor and Lemperger, István and Prácser, Ernő and Szalai, Sándor and Wesztergom, Viktor and Kiss, János and László, Zilahi-Sebess and Károly, Rádi and Fancsik, Tamás and Turai, Endre and Szabó, Norbert Péter and Nádasi, Endre and Baracza, Mátyás Krisztián and Vass, Péter and Szűcs, Péter and Dobróka, Mihály}, journal-iso = {GEOMAT KÖZL}, journal = {GEOMATIKAI KÖZLEMÉNYEK / PUBLICATIONS IN GEOMATICS}, volume = {25}, unique-id = {34059446}, issn = {1419-6492}, abstract = {The purpose of the journal is to provide the home researchers and experts a forum to publish, mainly in Hungarian language, their new scientific results in the field of geosciences (geodesy, photogrammetry, geoinformatics, physical geodesy, geophysics, Earth magnetism, geodynamics, research of the inner structure of the Earth and the physics of its troposphere and solar-terrestrial environment) obtained from the analysis of spatial-temporal data using the methods of geomatics.}, year = {2023}, pages = {87-92}, orcid-numbers = {Kiss, János/0000-0001-8589-1364; Nádasi, Endre/0000-0001-5325-6657; Dobróka, Mihály/0000-0003-3956-2070} } @inbook{MTMT:34289642, title = {Geoelectromagnetism}, url = {https://m2.mtmt.hu/api/publication/34289642}, author = {Ádám, Antal and Szarka, László Csaba}, booktitle = {Encyclopedia of Solid Earth Geophysics}, doi = {10.1007/978-3-030-10475-7_129-1}, unique-id = {34289642}, year = {2020}, pages = {1-12} } @article{MTMT:3249956, title = {Key results on deep electrical conductivity anomalies in the Pannonian Basin (PB), and their geodynamic aspects}, url = {https://m2.mtmt.hu/api/publication/3249956}, author = {Ádám, Antal and Szarka, László Csaba and Novák, Attila and Wesztergom, Viktor}, doi = {10.1007/s40328-016-0192-2}, journal-iso = {ACTA GEOD GEOPHYS}, journal = {ACTA GEODAETICA ET GEOPHYSICA}, volume = {52}, unique-id = {3249956}, issn = {2213-5812}, abstract = {In the first part of the paper a brief introduction is given (a) to the magnetotelluric (MT) and magnetovariation (MV) soundings, (b) to electrical resistivity of minerals and rocks, and their dependence on temperature and fluid content. The basic geoelectric model in the Pannonian Basin is a (linear) tectonic zone (“dike”) and a series of dikes. In the second part the main crustal and mantle conductivity anomalies observed in the Pannonian Basin (PB) are summarized: (a) deep conductive crustal fractures and their relation to the occurrence of the earthquakes, boundary of the megablock(s) etc., (b) middle crustal conductors as indicators of decrease in stress and seismic activity depending on thermal regime, (c) the conductive asthenosphere and its lateral change in the PB in connection with the heat flow and tectonics. The general relation between the depth of the conductive asthenosphere and the regional heat flow is also presented, (d) MT anisotropy of the resistivity distribution in the PB and its tectonic explanation based on Haas’s tectonic map (2001, Fig. 1). All these observations and conclusions are considered as results for further investigations. © 2016, Akadémiai Kiadó.}, keywords = {electric conductivity; Tectonics; Levees; earthquakes; geodynamics; Hydraulic structures; Heat Transfer; Electrical conductivity; Calluna vulgaris; Seismic activity; Conductivity anomalies; Conductive asthenosphere; Resistivity distributions; Geoelectric models; General relations; Crustal conductors}, year = {2017}, eissn = {2213-5820}, pages = {205-228} } @article{MTMT:2924064, title = {ELECTROMAGNETIC INDUCTION (EM) STUDIES BY MAGNETOTELLURICS – IAGA DIVISION 1. INTERNAL MAGNETIC FIELDS}, url = {https://m2.mtmt.hu/api/publication/2924064}, author = {Ádám, Antal and Novák, Attila and Szarka, László Csaba and Wesztergom, Viktor}, journal-iso = {GEOMAT KÖZL}, journal = {GEOMATIKAI KÖZLEMÉNYEK / PUBLICATIONS IN GEOMATICS}, volume = {18}, unique-id = {2924064}, issn = {1419-6492}, year = {2015}, pages = {53-54} } @CONFERENCE{MTMT:2807564, title = {Relation between xenoliths and magnetotelluric (MT) conductors in the Pannonian Basin (PB) - Short review}, url = {https://m2.mtmt.hu/api/publication/2807564}, author = {Klébesz, Rita and Ádám, Antal and Novák, Attila and Szabó, Cs and Wesztergom, Viktor}, booktitle = {EGU General Assembly 2014: Conference Abstracts}, unique-id = {2807564}, year = {2014} } @CONFERENCE{MTMT:2786083, title = {Combined geophysical (magnetotellurics) and geochemical results for determination of the Lithosphere-Asthenosphere Boundary (LAB) beneath the Nógrád-Gömör Volcanic Field}, url = {https://m2.mtmt.hu/api/publication/2786083}, author = {Novák, Attila and Klébesz, Rita and Szabó, Cs and Wesztergom, Viktor and Patkó, Levente and Liptai, Nóra and Ádám, Antal and Semenov, V Y and Lemperger, István and Kis, Árpád and Gribovszki, Katalin Eszter}, booktitle = {22 nd EM Induction Workshop}, unique-id = {2786083}, year = {2014}, orcid-numbers = {Patkó, Levente/0000-0001-6007-3103; Liptai, Nóra/0000-0002-2464-2468; Gribovszki, Katalin Eszter/0000-0003-2577-0127} } @CONFERENCE{MTMT:2786082, title = {2-D and 3-D magnetotelluric modeling to support the petrological result for the nature of the magma storage system beneath the Ciomadul volcano (SE Carpathians)}, url = {https://m2.mtmt.hu/api/publication/2786082}, author = {Novák, Attila and Harangi, Szabolcs and Kiss, Balázs and Seghedi, I and Haranginé Lukács, Réka and Szarka, László Csaba and Wesztergom, Viktor and Ádám, Antal and Lemperger, István}, booktitle = {22 nd EM Induction Workshop}, unique-id = {2786082}, year = {2014}, orcid-numbers = {Harangi, Szabolcs/0000-0003-2372-4581; Kiss, Balázs/0000-0003-0040-0656; Haranginé Lukács, Réka/0000-0002-2338-4209} } @CONFERENCE{MTMT:2726132, title = {Determination of the Lithosphere-Asthenosphere Boundary (LAB) beneath the Nógrád-Gömör Volcanic Field by combined geophysical (magnetotellurics) and geochemical methods}, url = {https://m2.mtmt.hu/api/publication/2726132}, author = {Novák, Attila and Klébesz, Rita and Szabó, Cs and Patkó, Levente and Liptai, Nóra and Kovács, Zoltán and Wesztergom, Viktor and Ádám, Antal and Lemperger, István and Kis, Árpád and Molnár, Cs and Szendrői, Judit}, booktitle = {EGU General Assembly 2014: Conference Abstracts}, unique-id = {2726132}, abstract = {Understanding the fundamental role of LAB is substantial for the investigation of the geodynamic evolution of the Earth. The LAB depths can be estimated by different geophysical methods (seismology, magnetotellurics), however these depths are controversial. It has been emphasized in the literature that combined geophysical and geochemical approach may lead to better understanding of these depths. The magnetotellurics (MT) is very powerful method because it indicates the sudden increase in conductivity at the LAB. The mantle xenoliths (small fragments of the lithospheric mantle) provide the information to reconstruct their P-T paths. In the Carpathian-Pannon region (CPR) five, well-studied occurrences of mantle xenoliths-bearing Plio-Pleistocene alkali basalts are known, which makes the CPR a very promising area for investigating the inconsistency in the LAB estimates. As a test area Nógrád-Gömör Volcanic Field (NGVF) has been chosen. The host basalt erupted at the NGVF collected mantle xenoliths from a small volume of the upper mantle in a depth of about 40-50 km. The major element geochemistry of the studied xenoliths indicates that most of them represent common lherzolitic mantle, whereas others show strong wehrlitisation process. This metasomatism is supposed to be caused by a migrating mafic melt agent, resulting in the transformation of a large portion of lherzolite to wehrlite beneath the NGVF, possibly just below the crust mantle boundary. In aim to detect the LAB at the research area and find the correlation with petrologic and geochemical results we carried out MT deep soundings. The campaign contained 12 long period MT stations with 3-5 km average spacing along 60 km long profile SSE to NNW direction. This presentation summarizes the preliminary results of the combined geophysical and geochemical approaches to determine the LAB depths.}, year = {2014}, orcid-numbers = {Patkó, Levente/0000-0001-6007-3103; Liptai, Nóra/0000-0002-2464-2468} } @CONFERENCE{MTMT:2475214, title = {Indication of meta-anthracite by magnetotellurics in the Köszeg-Rechnitz Penninic window}, url = {https://m2.mtmt.hu/api/publication/2475214}, author = {Novák, Attila and Ádám, Antal and Prácser, Ernő}, booktitle = {EGU General Assembly 2013: Conference Abstracts}, unique-id = {2475214}, year = {2013} } @article{MTMT:2422060, title = {Indication of meta-anthracite by magnetotellurics in the Kőszeg-Rechnitz Penninic window: a test area}, url = {https://m2.mtmt.hu/api/publication/2422060}, author = {Ádám, Antal and Novák, Attila and Prácser, Ernő and Szarka, László Csaba and Wesztergom, Viktor}, doi = {10.1007/s40328-013-0028-2}, journal-iso = {ACTA GEOD GEOPHYS}, journal = {ACTA GEODAETICA ET GEOPHYSICA}, volume = {48}, unique-id = {2422060}, issn = {2213-5812}, abstract = {One of the Penninic Nappes is the KAszeg-Rechnitz (K-R) tectonic window at the Eastern end of the Eastern Alps. It has a complicated metamorphic history from the Jurassic time. The organic material of the Penninic Ocean was transformed to electrically conductive meta-anthracite. Its amount in the chalcophyllite is estimated by geochemists to 0.2 per cent. Taking this conducting structure as a test area pilot deep magnetotelluric (MT) soundings have been carried out and we determined the structure of the conductivity anomaly due to 0.2 per cent meta anthracite in the K-R window and its surroundings the different kinds of MT distortions as lateral (side) effect of the conductor appearing in the crust and mantle the most probable depth of the conductive asthenosphere at the border of the Pannonian Basin (having extreme shallow asthenosphere). The obtained similar to 140 km depth is in correlation with value of the asthenospheric map based mainly on seismic data.}, keywords = {PROFILE; DISTORTION; TENSOR; Inversion; Graphite; 1D and 2D inversion; Koszeg-Rechnitz tectonic window; Conductivity anomaly; Meta-anthracite; Magnetotelluric sounding}, year = {2013}, eissn = {2213-5820}, pages = {281-292} }