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Introduction
My research is focused to provenance analysis, petrography and petrology of Neogene clastic sediments. Current work is aimed to sediments of volcanic origin and interpretation of obtained radioisotopic ages for basin analysis.
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Publications
Publications (52)
The depositional record of intermontane basins provides a valuable archive of the temporal evolution of orogenic belts; their common isolated nature, however, hinders the efficient usage of standard approaches to constrain the age of a basin fill. In this paper the authigenic 10Be/9Be dating method is employed to construct an age model of the exist...
The Transcarpathian Basin, consisting of the Prešov and Trebišov sub-basins, is situated at the border of the Western and Eastern Carpathians. Hydrocarbon exploration in this basin has been ongoing for more than 60 years and reserves of economic importance are located in the E to NE part of the basin. The Trebišov sub-basin was analysed to characte...
The cross-border correlations of the Miocene lithostratigraphic units (Slovakia, Austria) remain poorly constrained, owing to the various sources of clastic material transported into the basin and the low stratigraphic resolution of conglomerates. Therefore, this study is focused on the Lower and Middle Miocene conglomerates in the deltaic systems...
The ratio of radionuclide 10Be and stable nuclide 9Be in a water column is affected by proximity of terrestrial sources, since 9Be is derived from weathering of rock masses, while cosmogenic 10Be has a meteoric origin. Prograding of river deltas forming deltaic parasequences (high frequency cycles) as well as prograding of shelf slopes (4th and hig...
The Danube Basin represents a northwestern depocenter of the Middle Miocene Central Paratethys Sea, which was succeed by the Late Miocene Lake Pannon. Although this is an extensively examined area, the application of multidisciplinary studies has proven capable of drawing attention to novel information concerning the depositional environment. Thus,...
International chronostratigraphic chart showing division of geological time and its numerical ages is regularly updated by the International Commission on Stratigraphy (ICS). The Slovak chronostratigraphic chart has not been updated since the end of the 1980s. This paper provides an overview of standard procedures for deriving Slovak terms; introdu...
U–Pb dating of magmatic zircons from the Permian meta-andesites of the Čierna Hora Mts. yielded the Concordia
ages of 267.0±1.5 Ma, which correspond to the Guadalupian Epoch in the time span of the Wordian Stage.
The sequence was correlated with the Northern Veporic Permian rocks from the Čierťaž Mts. From the geochemical point
of view, the studied...
The sedimentary fill of the Danube Basin represents the northwestern part of the Central Paratethys Sea. The middle Miocene opening of the basin was associated with volcanic activity. The altered tuff to tuffite layers from the northwest part of the Danube Basin occurs within the NN5 Zone and are accompanied by volcanic sediments with andesite clas...
The study focuses on the upper Miocene colluvial to alluvial fan deposits of the Modrová Mb., which accumulated on the marginal blocks of the Považský Inovec Mts., transitional to surrounding depressions of the Danube Basin. These blocks are delimited tectonically according to the geophysical evidence, and the late Miocene normal faulting produced...
The Lipovany and Mučín paleobotanical localities contain important floral associations within the tuff horizons, which were used for determination of subtropical to tropical climatic conditions during the Early Miocene. Based on the combination of results from plagioclase and biotite 40Ar/39Ar dating, the age of the tuff deposition is around 17.3Ma...
The paper presents whole rock chemical composition and Sr-Nd isotope data from selected metabasic rocks from the Mississippian and Pennsylvanian sequences of the Northern Gemeric Unit. The analysed metabasic rocks belong to the subalkaline magmatic series with Nb/Y ratios ranging from 0.03 to 0.21. They fit into the low-Ti tholeiitic series, charac...
The authigenic 10Be/9Be dating method utilizes the ratio of cosmogenic radionuclide 10Be produced in the atmosphere and of stable 9Be derived from chemical erosion of rock massifs.Different origin of both nuclides points to difficulty in determination of the initial isotopic ratio, which radioactive decay is the base of age calculation using the eq...
The late Badenian and Sarmatian (Serravallian) evolution of depositional environments in the Danube Basin
(Želiezovce Depression) has never been fully explored. Here, we clarify the paleoenvironmental changes which took
place in this area during the late Badenian and Sarmatian on the basis of sedimentological, petrographic, biostratigraphic
and pal...
Deep wells penetrated Cenozoic sedimentary record of two different basins: 1) Oligocene retro-arc basin which is buried under the 2) Miocene back-arc Danube Basin. This study is focused on biotic and abiotic proxies discussed in terms of existing biostratigraphical, paleoenvironmental and sedimentological data. Biotic proxies are represented by pal...
U-Pb dating of magmatic zircons from the Permian basaltic metaandesites/metabasalts of the Tribeč Mts. yielded the Concordia ages of 263.1±2.6 Ma, which correspond to the Guadalupian Epoch in the time span of the uppermost Wordian/Capitanian Stages. These magmatic zircon ages clearly document the timing of the Mid-Permian lithospheric extension in...
40 Ar/ 39 Ar radio-isotopic dating of volcanic tuffs intercalated in sediments can provide high accuracy age control on the deposition of sedimentary rocks. State-of-the-art mass spectrometers such as the ARGUS VI+ are able to acquire highly precise ages for relatively small single grains (~90-250 μm for Miocene samples). Single grain measurement c...
The Late Paleozoic sedimentary basins in the Northern Gemericum evolved gradually in time and space within the collisional tectonic regime of the Western Carpathian Variscan orogenic belt. The detrital zircon age spectra, obtained from the Mississippian, Pennsylvanian and Permian metasediments, have distinctive age distribution patterns that reflec...
In the online published article, the name of one of the co-authors Katarína Šarinová was incorrectly published as Katarina Paranoia. The correct name is given below.
The Kuchyňa tuff is found on the Eastern margin of the Vienna Basin and was formed by felsic volcanism.
The Ar/Ar single grain sanidine method was applied and resulted in an age of 15.23 ± 0.04 Ma, which can be interpreted
as the age of the eruption. The obtained numerical age is in accordance with the subtropical climate inferred by
the presence o...
U–Pb (SHRIMP) detrital zircon ages from the Early Paleozoic meta-sedimentary rocks of the Northern Gemericum Unit (the Smrečinka Formation) were used to characterize their provenance. The aim was to compare and reconcile new analyses with previously published data. The detrital zircon age spectrum demonstrates two prominent populations, the first,...
The blueschist-bearing Bôrka Nappe regarded as a part of the Meliaticum Unit s. l. and the Turnaicum Unit in its hanging-wall were thrusted together to the north on the Inner Western Carpathians basement during the orogenic events of the Late Jurassic–Early Cretaceous. A new U–Pb sensitive high-resolution ion microprobe (SHRIMP) magmatic, as well a...
The Pozba-4 well (Poz-4; 48° 4' 43.07" N, 18° 27' 32.85" E) was drilled in the Northern Želiezovce Depression, of the Danube Basin and it uncovered 940 m thick sequence of Neogene sediments. The Cenozoic basement is formed by the Triassic dolomites and meta-sandstones. The main focus of this study are the sediments of the Pozba-Vráble Formation (up...
The Modrany-1 and Modrany-2 wells, drilled in the Želiezovce depression of the Danube Basin penetrated theMiocene (NN5, NN6 and NN9) and Oligocene (NP21-22) sedimentary record with total thickness exceeds 2200m. Biostratigraphy and sedimentology of MOD-1 well have been studied extensively in Kováč et al., 2018 and was delimitated pre-Neogene baseme...
The Danube Basin, located in the junction of the Eastern Alps and Western Carpathians, comprises up to 600 m thick alluvial succession, which was previously assigned to Quaternary without geochronological constraints. The internal stratigraphy and timing of the succession remained unknown, although it has potential to provide an important record of...
The Blatné Depression located in the NW part of the Danube Basin represents the northernmost sub-basins of the Pannonian Basin System. Its subsidence is associated with oblique collision of the Central Western Carpathians with the European platform, followed by the back-arc basin rifting stage in the Pannonian domain. The conglomerates recognized i...
U–Pb (SHRIMP) detrital zircon ages from the Pennsylvanian–Permian meta-sedimentary rocks of the Zemplinicum Unit were used to characterise the provenance and the tectono-thermal evolution of the basement. The magmatic zircon ages from the contemporaneous rhyolite pyroclastics, ranging from 308 to 305 Ma, dated the Pennsylvanian sedimentary formatio...
The Komjatice depression, situated on the Danube Basin’s northern margin, represents a sub-basin of the Neogene epicontinental Central Paratethys Sea and Lake Pannon. The paper provides an insight into the character of sediment provenance evolution by study of well cores (ZM-1, IV-1, MOJ-1, VR-1 wells). A modern combination of provenance, sedimento...
Within the framework of reinterpretation of the depositional evolution of the Komjatice depression, presence of cummingtonite in weakly lithified sediment has been detected. The sediment is formed by volcanic lithoclasts and phenocrysts with a small admixture of non-volcanic grains. The different mineral composition and various degrees of alteratio...
The Danube Basin is situated between the Eastern Alps, Western Carpathians and Transdanubian mountain ranges and represents a classic petroleum prospection site. The basin fill is known from many 2D reflection seismic lines and deep wells with measured e-logs which provided a good opportunity for theories about its evolution. New analyses of deep w...
This paper presents geochronological data for the volcanic dykes located in the northern Považský Inovec Mts. The dykes are up to 5 m thick and tens to hundreds of metres long. They comprise variously inclined and oriented lenses, composed of strongly altered grey-green alkali basalts. Their age was variously interpreted and discussed in the past....
For the assessment of depositional age and provenance of the Hronicum Unit Pennsylvanian to Permian siliciclastic sediments, SIMS (SHRIMP) U–Pb analyses have been carried out on detrital zircons. To constrain the presumed provenance of the Hronicum Unit sediments five samples have been taken from two lithostratigraphic units, the Nižná Boca and the...
The Southern Gemericum basement in the Inner Western Carpathians, composed of low-grade volcano-sedimentary rock complexes, constitutes a record of the polyphase Cambrian–Ordovician continental volcanic arc volcanism. These metavolcanic rocks are characterized by the enrichment in K, Rb, Ba, Th and Ce and Sm relative to Ta, Nb, Hf, Zr, Y and Yb tha...
U–Pb dating (SHRIMP) of magmatic zircons from the Northern Veporicum Permian volcanics of the Ľubietová Group yielded concordia ages of 273 ± 6 Ma and 279 ± 4 Ma. Both zircon ages correspond to the Cisuralian Epoch in the time span of Kungurian Stage. The 272 ± 4 Ma U–Pb zircon age, determined on the volcanic dyke cutting the neighbouring crystalli...
The Danube Basin is situated between the Eastern Alps, Central Western Carpathians and Transdanubian Range. The northwestern embayment of the basin is represented by the Blatné depression with deposits ranked into the Langhian–Serravallian (Badenian, Sarmatian) and Tortonian–Pliocene (Pannonian–Pliocene). They are documented by the NN4, NN5 and NN6...
The strata of lacustrine, deltaic and alluvial sequences of the southeastern Danube Basin (SE DB) deposited during the Pannonian were reached by numerous boreholes. Even though the large amount of available data there are inconsistencies in recent knowledge, concerning distribution of different formations in the basin fill as well as the interpreta...
Presented contribution brings a comprehensive Slovak edition of classification and nomenclature of magmatic rocks based on recommendations of the International Union of Geological Sciences, Subcommission on the Systematics of Igneous Rocks, published in the 2nd Edition of Igneous rocks: A classification and glossary of terms (Le Maitre et al., 2002...
The Ratkovce 1 well, drilled in the Blatné depocenter of the northern Danube Basin penetrated the Miocene sedimentary record with a total thickness of 2000 m. Biostratigraphically, the NN4, NN5 and NN6 Zones of calcareous nannoplankton were documented; CPN7 and CPN8 foraminifer Zones (N9, 10, 11 of the global foraminiferal zonation; and MMi4a; MMi5...
Several magmatic events based on U-Pb zircon geochronology were recognized in the Permian sedimentary succession of the Northern Gemeric Unit (NGU). The Kungurian magmatic event is dominant. The later magmatism stage was documented at the Permian-Triassic boundary. The detritic zircon assemblages from surrounding sediments documented the Sakmarian...
The Permian Malužiná Formation and the Pennsylvanian Nižná Boca Formation are Upper Paleozoic vol- cano-sedimentary complexes in the Hronicum nappe system. Sandstones, shales and conglomerates are the dominant lithological members of the Malužiná Formation sequence. Detrital monazites were analysed by electron microprobe, to obtain Th-U-Pb ages of...
The Southern Gemericum basement in the Inner Western Carpathians experienced a polyphase regional deformation. Differences in the pre-Alpine and Alpine events have been constantly discussed. To address
this, monazites from metapelites and acid metavolcanic rocks were dated using the Th–U–Pb electron microprobe method. Three monazite generations, su...
The Southern Gemericum basement in the Inner Western Carpathians experienced a polyphase regional deformation. Differences in the pre-Alpine and Alpine events have been constantly discussed. To address
this, monazites from metapelites and acid metavolcanic rocks were dated using the Th–U–Pb electron microprobe method. Three monazite generations, su...
New U-Pb sensitive high-resolution ion microprobe (SHRIMP) detrital-zircon ages from early Paleozoic to Permian siliciclastic metasediments are used to constrain provenance and paleogeographic affinity of the Northern Gemericum Unit (NGU) in the Western Carpathians (Central Europe). The samples span the time period from similar to 480 Ma to similar...
Preliminary results of geological research in the eastern part of the Danube Basin are
presented in this study. Geological mapping and sedimentological analysis of outcrops in the
southern part of the Hronská pahorkatina upland were done. At selected localities, mammal and
mollusck fauna was used to specify age and sedimentary paleoenvironment. The...
U–Pb (SHRIMP) determinations on detrital zircons from the Early Paleozoic Gelnica Terrane metasandstones and their Permian
overlap sediments of the Inner Western Carpathian Southern Gemeric Unit define five age populations based on age-probability
plots. The metasandstones were sampled for detrital zircons from six stratigraphic levels, four of the...
The low-grade crystalline basement of the Southern Gemeric Unit (Inner Western Carpathians) consists mainly of siliciclastic
deep-water turbidite sequence associated with a huge mass of redeposited rhyolite/dacite volcanics and their volcaniclastics.
In situ U–Pb SHRIMP zircon dating applied to metavolcanic rocks contributed to specification of the...
Projects
Projects (3)
The project aim is to specify the effects of factors influencing the authigenic 10Be/9Be dating method and hence to calibrate the method. The effects of changes in sediment source proximity, sediment provenance and depositional process on the authigenic 10Be/9Be will be examined on sedimentary sequences with an ideal framework of conditions - existing robust geochronology and data related to depositional environment and sediment source character. The second aim of the project is to verify the calibration on selected upper Miocene to Quaternary successios of the Vienna, Turiec and East Slovakian basins, which will confirm the efectivity of determination of factors affecting the dating method. The proposed project will enable improvement of precision of the authigenic 10Be/9Be dating method and to specify the conditions needed for the method proper application, what is necessary for its utilization in future research.
Project deals with identification of riftogenic zones in the area of the Western Carpathians and the neighbouring areas. It includes a longer time period from Late Proterozoic (at ca. 550 Ma) up to Mesozoic-Cenozoic boundary (at ca. 60 Ma), when riftogenesis continued with the opening of the main Tethyan oceans on the Earth. These preliminarily determined riftogenic zones will be investigated from the viewpoint of a long-term periodicity, intensity of magmatism, metamorphism and chemical elements mobility (recycling) between the crustal and mantle rocks: Late Proterozoic – Cambrian, Devonian, Permian – Triassic and Jurassic – Cretaceous. Specific groups of rocks and their minerals will be searched as indicators of the riftogenic zones, despite they often have signatures of superimposed tectono-thermal overprinting from their incorporation into the orogenic zones. Mineralogicalpetrological (EPMA, micro-Raman, LA-ICP-MS, XRF, ICP-MS), isotopic-geochemical (LA-MC-ICP-MS, TIMS) and
geochronological (U-Pb SIMS, LA-ICP-MS, Ar-Ar, K-Ar) methods will be applied to establish the chemical composition of minerals and rocks, their isotopic characteristics (U-Pb, Pb-Pb, Sm-Nd, Rb-Sr, Zr-Hf, Re-Os) and the ages. Geothermobarometry and thermodynamic modeling with Melts, Perple_X and Thermocalc software will be used for estimation of P-T conditions of the crustal and mantle rocks mineral parageneses formation. This database can reveal the rocks origin and their magmatic and metamorphic evolution stages. We will suggest
interpretation models addressed to paleotectonic zones of riftogenesis defined with typical rock associations and their mineralogical-petrological, geochemical and geochronological characteristics. Classification of riftogenic zones and their relationship to the opening of the Tethyan oceans will be confronted with published hypothetical models of riftogenesis as the domains of crust-mantle interaction and recycling, often with a significant economic potential.