Miklós Molnár

Biographic Data

ID550515
NAMEMiklós Molnár
GIVEN NAMESMiklós
FAMILY NAMEMolnár
SIGNATUREMOLNÁR M
AFFILIATIONSHUN-REN Institute for Nuclear Research
ORCID0000-0003-4382-9508
VERIFIEDYes
TOTAL WORKS75
TOTAL CITATIONS242
AUTHOR COUNT75
EDITOR COUNT0
FIRST PUBLICATION YEAR1972
LATEST PUBLICATION YEAR2026
H-INDEX7

  • Radiocarbon changes in the XI century CE in annual tree rings

    Open AccessAndrzej Rakowski, Jacek Pawlyta et al.ARTICLERadiocarbon2026References: 39

    This paper presents new radiocarbon ( 14 C) measurements from annual tree rings of English oak ( Quercus robur L.) from Kujawy, Poland, spanning 1042–1062 CE. The results confirm an increase in Δ 14 C values between 1053 and 1055 CE, within the Oort Minimum of solar activity, consistent with literature values (Brehm et al. 2021a; Eastoe et al. 2019; Terrasi et al. 2020). The data reveal a sustained increase in Δ 14 C values between 1053 and 1055 …

  • Radiocarbon dating of the Church of St. Margaret of Antioch in Kopčany (Slovakia)

    Open AccessPavel P Povinec, I Kontuľ et al.ARTICLERadiocarbon2025

    An international consortium of radiocarbon laboratories has established the origin of the Church of St. Margaret of Antioch in Kopčany (Slovakia), because its age was not well known from previous investigations. In total, 13 samples of charcoal, wood, mortar, and plaster were analyzed. The 14 C results obtained from the different laboratories, as well as between the different sample types, were in good agreement. Resulting the final 14 C calibrat…

  • Radiocarbon dating of old African baobabs from Xangongo, Cunene, Angola

    Open AccessAdrian Patrut, Miklós Molnár et al.ARTICLERadiocarbon2025References: 32

    The Cunene region of southern Angola, especially the area around Xangongo, hosts a large number of African baobabs, including several superlative specimens. Our research reports the investigation of the three biggest specimens from Xangongo Grove, named XG-1 (11 stems; circumference 26.34 m), XG-2 (5 stems; 22.70 m) and XG-3 (9 stems; 27.73 m), and of the largest baobab from Xangongo town, named XT-1 (7 stems; 21.02 m). Several wood samples were …

  • The population history of Central Europe in the Early Bronze Age (2200/2100–1600/1500 BC) - a craniometric approach

    Open AccessTamás Szeniczey, Eszter Melis et al.ARTICLEArchaeological and Anthropological…2025References: 7

    During the Late Neolithic and Early Bronze Age, migrations and the advent of working bronze alloy materials triggered profound cultural, social, and economic shifts across Central Europe. As a result of this processes, many communities with distinct archaeological and cultural characteristics emerged during the Central European Early Bronze Age (between circa 2200/2100 and 1600/1500 BC) in Central Europe, and with the Middle Bronze Age of the Car…

  • C age of recent natural earthworm biospheroids—implications for paleosol dating

    Open AccessTitanilla Kertész, Virág Gergely et al.ARTICLERadiocarbon2025

    Earthworm biospheroids are a useful alternative to radiocarbon ( 14 C) soil dating. In this study, we undertook a series of measurements to test the 14 C dating potential/performance of recent earthworm biospheroid granules. A novel sample preparation protocol for 14 C in biospheroids was developed and elaborated at Atomki (Institute for Nuclear Research) and tested on IAEA reference materials. 24 natural biospheroid samples were extracted from f…

  • Investigating the impact of Covid-19 on the atmospheric 14C trend and fossil carbon load at urban and background sites in Hungary

    Open AccessBalázs Áron Baráth, Tamás Vargas et al.ARTICLERadiocarbon2025

    The study analyses in situ CO 2 mole fraction, 14 CO 2 , and fossil based excess CO 2 mole fraction (C foss ) data at Hegyhátsál (HUN) rural monitoring station (Central Europe) supplemented by passive monitoring of 14 C content of tree-rings. Through the observed period (2014–2020) we focused on revealing trends in atmospheric CO 2 and 14 C levels, particularly during the year of the first COVID lockdown, in comparison to the preceding five years…

  • The last 40,000 years of a floodplain area (Tisza, Hungary) comparative case study of 14C and OSL methods

    Open AccessTitanilla Kertész, Katalin Hubay et al.ARTICLERadiocarbon2025

    To investigate the environmental history of the Tisza River (Hungary), we applied 14 C and OSL dating methods for five parallel, neighboring cores from the flood plain area (Jászság Basin). Four major sedimentary layers were identified: meadow soil on the top (S1); silty-clay (S2); clayey-silt (S3) section; and fine sand (S4). 14 C and OSL data were integrated into a synthetic age-depth model using the BACON software package. Formation of the S1 …

  • A speleothem record of seasonality and moisture transport around the 8.2 ka event in Central Europe (Vacska Cave, Hungary)

    Open AccessAttila Demény, György Czuppon et al.ARTICLEQuaternary Research2024

    A stalagmite was collected in northern Hungary from the Vacska Cave, where monitoring and ventilation-based site selection had been conducted. The stalagmite covers the 10–8 ka (relative to AD 1950) period, including the so-called 8.2 ka event, and showed preceding signs of climate change that were evaluated by petrographic observations, 14 C activities, Sr concentrations, and stable isotope compositions of calcite and inclusion-hosted water. Com…

  • Case Study from Máza Brickyard (SW-Hungary)

    Open AccessDávid Molnár, László Makó et al.ARTICLEQuaternary2024

    The loess–paleosol profile of Máza brickyard in SW Hungary was investigated through multivariate analyses of malacofauna and sedimentological analyses. The aim was to reconstruct the complex developmental history of both sediment and malacofauna. Three age–depth models were calculated, and the best-fit model, the OxCal P-sequence, was chosen for further analysis. The profile overlays the MIS3 and MIS2, beginning at approximately 45,000–50,000 cal…

  • Radiocarbon Concentration in Sub-Annual Tree Rings From Poland Around 660 Bce

    Open AccessAndrzej Rakowski, Jacek Pawlyta et al.ARTICLERadiocarbon2024Cited by: 4References: 46

    The article presents results of measurements of radiocarbon ( 14 C) concentration in sub-annual dendrochronologically dated tree rings of English oak ( Quercus robur L.) from Grabie village near Kraków (southern Poland). Samples of early wood (EW) and late wood (LW) spanning the years 664–658 BCE. α-cellulose was extracted from each sample and their radiocarbon content was measured at the ATOMKI laboratory in Debrecen, Hungary. The EW and LW data…

  • Novel dissolved organic 14C analyses method applied in a case study at a Lilw waste repository

    Open AccessAnita Molnár, M Veres et al.ARTICLERadiocarbon2024

    A routine chemical procedure was developed at the Ede Hertelendi Laboratory of Environmental Studies (HEKAL), in Debrecen which can measure the dissolved organic radiocarbon content of groundwater as well as the inorganic and total fraction. The typical background of this non-purgeable dissolved organic radiocarbon preparation is 0.73 ± 0.14 percent modern carbon (pMC), using a carbon contamination correction on fossil dissolved material (potassi…

  • New radiocarbon dates from the Bronze Age Tiszafüred-Majoroshalom site (Eastern Hungary)

    Open AccessJános Dani, Anikó Horváth et al.ARTICLERadiocarbon2024

    In this paper we present new AMS radiocarbon dates from the Bronze Age cemetery of Tiszafüred-Majoroshalom excavated between 1961 and 1972. The cemetery provides crucial information on the cultural development and chronology of the Bronze Age Otomani-Füzesabony and the Tumulus cultures of Eastern Central Europe, in addition to the transition between the Middle and Late Bronze Age (approx. 1500 BC) in the Great Hungarian Plain

  • Možnosti a limity radiouhlíkového datování se zaměřením na netypické archeologické vzorky

    Open AccessJarmila Bíšková, Veronika Brychová et al.ARTICLEArcheologické rozhledy2023

    Radiouhlíkové datování je etablovanou metodou, která pomáhá určit absolutní stáří archeologických nálezů. Tento tematický přehled prezentuje základní principy radiouhlíkové metody, předpoklady pro výběr vzorků z archeologických situací, způsob zacházení se vzorky před zasláním do radiouhlíkové laboratoře, laboratorní postupy úpravy vzorků, průběh AMS měření a kalibraci výsledků. Dále jsou vysvětleny faktory, které omezují výsledky radiouhlíkového…

  • The Potential of Biogenic Fraction Analysis by Radiocarbon in Food, Drug, and Cosmetic Products

    Open AccessTamás Vargas, Dóra Szejke et al.ARTICLERadiocarbon2023References: 44

    Biobased content analysis is a well-established, analytically independent, standardized method to determine the biobased content of fuels and plastics, based on differences of the specific radiocarbon ( 14 C) activity of fossil and recent biogenic compounds. This biogenic content analysis can be useful for the producers as a quality assurance tool, for the customers as feedback about the truly biobased products and for the control organizations a…

  • Intercomparison Exercise on Fuel Samples for Determination of Biocontent Ratio by 14 C Accelerator Mass Spectrometry

    Open AccessTamás Vargas, I Hajdas et al.ARTICLERadiocarbon2023Cited by: 1References: 36

    The method of determining the biobased carbon content in liquid fuel samples is standardized, but different laboratories use different protocols during sample preparation and perform the measurements using different machines. The accelerator mass spectrometry (AMS) laboratories use different combustion, preparation, and graphitization methods for the graphite production for the spectrometric measurements. As a result, the intercomparison between …

  • Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary

    Open AccessPál Sümegi, Dávid Molnár et al.ARTICLEQuaternary2022

    Numerous loess/paleosol sequences (LPS) in the Carpathian Basin span the period of Marine Isotope Stage (MIS) 2 and the last glacial maximum (LGM). Nevertheless, only two known records—Madaras and Dunaszekcső—preserve highly resolved records with absolute chronologies with minimal uncertainties, which enable the meaningful assessment of feedbacks and short-term climatic fluctuations over this period. The Madaras profile is located at the northern…

  • Determination of the Total 14 C Concentration of Water Samples Using the Cod Method and Ams

    Open AccessAnita Molnár, Miklós Molnár et al.ARTICLERadiocarbon2022Cited by: 1References: 23

    Radiocarbon ( 14 C) is the one of the most important radionuclides released from the nuclear facilities to the environment. Currently, inorganic 14 C is checked during regular environmental monitoring as part of the groundwater monitoring program of the Paks Nuclear Power Plant. Several studies have shown that organic 14 C can be also an important and sensitive tool for detection of possible leakage of nuclear technological systems. For this reas…

  • The Iaea Forensics Program

    Open AccessGianluca Quarta, I Hajdas et al.ARTICLERadiocarbon2022Cited by: 3References: 37

    In the frame of the IAEA-CRP (Coordinated Research Projects): Enhancing Nuclear Analytical Techniques to Meet the Needs of Forensic Sciences , an intercomparison exercise was organized between three AMS laboratories. Aim of the program is to promote the use of nuclear and accelerator-based techniques in routine forensics practice. In this view, one of the key points is the assessment of the precision and accuracy levels achievable on material of …

  • Scaling the 14 C-Excursion Signal in Multiple Tree-Ring Series With Dynamic Time Warping

    Open AccessIrina P Panyushkina, Valerie Livina et al.ARTICLERadiocarbon2022Cited by: 1References: 33

    A signal of rapid changes in 14 C production is logged in annual series of 14 C derived from tree rings, which can be associated with diverse effects of cosmic-ray fluxes, including solar burst and supernova events. These 14 C signatures may vary in time and space. The intensity and structure of the 14 C signal is multifaced, which complicates understanding of the forcing and attribution of the underlying astrophysical events. It was suggested th…

  • Soil Organic Carbon Dating of Paleosoils of Alluvial Fans in a Blown Sand Area (Nyírség, Hungary)

    Open AccessBotond Búró, Gábor Négyesi et al.ARTICLERadiocarbon2022Cited by: 3References: 47

    The most widely used dating techniques in quaternary research are the radiocarbon ( 14 C) and optically stimulated luminescence (OSL) dating methods. In some environments, the investigated sediments do not contain enough material for 14 C dating. In these cases, 14 C dating of bulk sediment may be used as a last resort. The major aim of the present study was to determine the reliability and limitations of the different fractions of the soil organ…

  • Tackling erosion-accumulation events in a moat sequence from a unique Ottoman memorial place (Szigetvár, SW Hungary) using 14C and geoarcheological data

    Open AccessSándor Gulyá, Andrea Torma et al.ARTICLEArchaeological and Anthropological…2022Cited by: 1References: 20

    One of the most influential rulers of the sixteenth century, Sultan Suleyman I, passed away and was buried temporarily near the fortress of Szigetvár in SW Hungary in 1566. Later, a memorial place was erected on the site in the second half of the sixteenth century. The complex was surrounded by a palisade system and a moat on its northern side. The site was fully destroyed in 1692, and the exact location vanished with time. Recent investigations …

  • Radiocarbon Dating of St. George’s Rotunda in Nitrianska Blatnica (Slovakia)

    Open AccessPavel P Povinec, Alexander Cherkinsky et al.ARTICLERadiocarbon2021

    An international consortium of radiocarbon ( 14 C) laboratories was established to date the origin of the St. George’s Rotunda in Nitrianska Blatnica (Slovakia), because its age was not well established in previous investigations. Altogether, 20 samples of wood, charcoal, mortar and plaster were analyzed. The 14 C results obtained from the different laboratories as well as between the different sample types were in good agreement, resulting in a …

  • Gas Ion Source Performance of the Environmicadas at Hekal Laboratory, Debrecen, Hungary

    Open AccessMiklós Molnár, Marianna Mészáros et al.ARTICLERadiocarbon2021Cited by: 4References: 19

    A coupled accelerator mass spectrometer–gas interface system has been successfully operating at the Hertelendi Laboratory of Environmental Studies, Debrecen, Hungary, since 2013. Over the last 6 years more than 500 gas targets were measured below 100 μg carbon content for carbon isotopic composition. The system was tested with blanks, OxII, IAEA-C1, IAEA-C2, and IAEA-C7 standards. The performance of our instrumentation shows good agreement with o…

  • C Intercomparison Exercise on Bones and Ivory Samples

    Open AccessGianluca Quarta, Miklós Molnár et al.ARTICLERadiocarbon2021Cited by: 6References: 43

    The application of accelerator mass spectrometry radiocarbon (AMS 14 C) dating in forensics is made possible by the use of the large excursion of the 14 C concentration in the post-WWII terrestrial atmosphere due to nuclear testing as a reference curve for data calibration. By this approach high-precision analyses are possible on samples younger than ∼70 years. Nevertheless, the routine, widespread application of the method in the practice of for…

  • Wiggle-Match Dating of a Floating Oak Chronology From an Early Iron Age Grave Construction (Eresztvényi Forest, Fehérvárcsurgó, Hungary)

    Open AccessZoltán Kern, B Jungbert et al.ARTICLERadiocarbon2021Cited by: 1References: 22

    Archaeological excavations unearthed three burial mounds between 1983 and 1986 at Fehérvárcsurgó (Hungary). Based on the archaeological determination the site was dated to the Early Iron Age. A complex wooden architecture was observed in the largest tumulus containing inner and outer beam constructions separated by stone blocks. Dendrochronological and radiocarbon ( 14 C) analyses were performed on conserved logs (n=5) to constrain the felling da…