Peter Ružička

Peter Ružička
Comenius University Bratislava · Department of Mineralogy and Petrology

PhD

About

56
Publications
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101
Citations
Citations since 2017
34 Research Items
84 Citations
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201720182019202020212022202305101520
201720182019202020212022202305101520

Publications

Publications (56)
Article
Full-text available
Mineral composition of laminated basalt metapyroclastics and marbles at the localities near Ochtiná (Slovak Republic). Basalt metapyroclastics at the localities Ochtiná-Pod Vápnom and Ochtiná-Hrádok form laminated intercalations in marbles of the Bôrka nappe (Meliatic Unit), Western Carpathians. The mineral association consists of amphiboles (actin...
Article
Full-text available
Basaltic rocks from ophiolitic mélanges provide information on geodynamic setting, origin, and later tectonometamorphic conditions. This paper resolves the P–T conditions and timing of high-pressure metamorphism in an accretionary wedge that formed during the Late Jurassic closure of the Neotethyan Meliata Basin. Blueschist-facies metabasites of th...
Conference Paper
The Ozren ophiolite complex (OOC) in Bosnia and Herzegovina is a part of large Dinaride ophiolite belt (Babajić, 2019, and reference therein). This contribution comprises mineralogical-petrographical descriptions of representative rocks of the OOC, which we sampled during the field investigation: lherzolites, harzburgites, dunites, gabbros, dolerit...
Article
Full-text available
The Dinaride Ophiolite Belt formed from the Jurassic part of the Neotethys. The investigated Ozren ophiolite complex in Bosnia and Herzegovina consists of peridotites, plagioclase peri-dotites, plagiogranites, troctolites and other gabbroic rocks, and fewer basalts. Lherzolites and harzburgites contain corroded ortho- and clinopyroxene1 porphyrocla...
Article
Full-text available
Investigated metacarbonates are located in the Early Paleozoic rocks of Southern Gemericum unit, Slovakia. Me-tacarbonates are part of Vlachovo Formation (Tichá Voda, Stará Voda) and Bystrý potok Formation (Betliar, Čučma, Malá Hekerová, Smolník-Mária Terézia, Holec). Detailed studies indicated metamorphic pressure-temperature (P-T) conditions of 3...
Article
Full-text available
Studied calcareous phyllites represent a part of Carboniferous Črmeľ Formation of the Northern Gemericum Unit (Western Carpathians, Slovak Republic). The mineral association of calcareous phyllites is composed of quartz, calcite, muscovite, Mg-Fe chlorites, albite and accessory minerals (fluorapatite, titanite, zircon and tourmalines). Chemical com...
Article
Full-text available
Garnet skarn mineralization was recently studied at the Trohanka locality near Prakovce (Gemeric Unit, Eastern Slovakia). Ca-skarn forms lenticular bodies in green schist environment. It mainly consists of zonal garnets, pyroxenes, amphiboles and magnetite accumulations. Studied garnets are rich in andradite component (up to 89.95 mol. %) with mino...
Article
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Crystalline limestones containing fragments of amphibolites from the locality Dobšiná - Kruhová are part of the Klátov complex (Northern Gemericum, Western Carpathians). The colour of studied rocks is light grey with massive texture and granoblastic structure. Inhomogeneous mottled to breccia-like character of a crystalline limestones is caused by...
Article
Full-text available
The composite Albian–Eocene orogenic wedge of the northern part of the Inner Western Carpathians (IWC) comprises the European Variscan basement with the Upper Carboniferous–Triassic cover and the Jurassic to Upper Cretaceous sedimentary successions of a large oceanic–continental Atlantic (Alpine) Tethys basin system. This paper presents an updated...
Article
Full-text available
Analyzed garnets from the Magnet hill area near Tisovec (Slovak Republic) are part of a Ca-skarn mineral association consisting of diopside, clinochlore and calcite. Compositionally they correspond to Ti-rich andradite (Adr50.9-73.7) with minor grossular (Grs3.8-44.5) and schorlomite (Sch0.5-41.5) components. Garnets contain up to 13 wt. % TiO2 and...
Article
Full-text available
Atoll garnets in basalt metapyroclastics from the locality Čučma - Vincent (Slovak Republic) consist of relict cores and zonal rings. Research was focused on comparison of chemical changes in these garnet microstructures. Relict cores have composition Sps41.4-45.2Grs40.6-43.0Adr6.4-13.6 Alm1.9-6.1, inner BSE light zone in the rings has composition...
Article
Full-text available
Crystalline limestones from the localities Lubeník and Ochtiná (Slovak Republic) have been formed by recrystallization of limestones enriched by basaltic tuffogenic material and a minor pelitic component. During Alpine orogenesis their regional metamorphism took place simultaneously with tectonic activity resulting origin of different in color and...
Article
Full-text available
Visualization of garnets and their mineral inclusions was performed by X-ray microtomography by reconstructing 3D image from 1800 measured 2D X-ray projections. Visualization procedure of 3D distribution of mineral inclusions was based on the different absorption of X-ray radiation between the host garnet and mineral inclusions. 3D visualization pr...
Article
Full-text available
Metamorphic evolution of an accretionary wedge can be constrained by a reconstructed P-T conditions of the oceanic and continental margin fragments. This paper deals with the metamorphic overprinting of the Inner Western Carpathians (IWC) Meliatic Triassic-Jurassic paleotectonic units after the closure of the Neotethyan Meliata Basin. Medium to hig...
Article
Full-text available
The identified mineral association in the crystalline limestones from the manganese locality Čučma - Čierna baňa consists of garnets and pyroxenes. Mineralogical composition of the samples Ču-1 and Ču-2 is represented by zonal garnets with Grs76.12-82.31; Adr17.69-23.88 composition in the core and Grs95.48-97.05; Adr2.95-4.52 composition in the rim...
Chapter
Full-text available
Soták, J.; Li, Q.-L.; Ondrejka, M.; Li, X.-H.; Hu, Z.; Ling, X.; Nemec, O.; Németh, Z.; Ružička, P. Origin and Age Determination of the Neotethys Meliata Basin Ophiolite Fragments in the Late Jurassic-Early Cretaceous Accretionary Wedge Mélange (Inner Western Carpathians, Slovakia). This study reports the Neotethyan Meliata Basin ophiolite fragment...
Article
Full-text available
Mineral composition of marbles, basalt metapyroclastics and chlorite schists was determined at the locality of Markuška. Magnesium-rich actinolite to tremolite was found in basalt metapyroclastics and marbles. In amphiboles, the Fe content ranges from 0.71 to 0.95 apfu in the iron-rich zone and from 0.40 to 0.63 apfu in the Mg-rich zone. At the A s...
Article
Full-text available
This study reports the Neotethyan Meliata Basin ophiolite fragments in the Late Jurassic-Early Cretaceous accretionary wedge mélange in the southern part of the Inner Western Carpathians (IWC). Here we present new lithostratigraphical, petrographical, geochemical, and geochronological data obtained from the mélange blocks used to reconstruct the Me...
Article
Full-text available
Application of the calcite-dolomite solvus geothermometry is focused on determination of the metamorphic conditions of the Middle Triassic carbonates from the locality Pliešovce (Slovak Republic). The metacarbonates represent a Mesozoic cover of the Southern Veporic. The temperature conditions of recrystallization have been calculated on the basis...
Article
Full-text available
The recrystallized limestones from Magnet Hill near Tisovec (Slovak Republic) locally contain breccia fragments with veins containing garnets and vesuvianite. Garnets have an oscillatory zoning with dominant grossular component in the range of 70 - 75 mol. % and 88 - 95 mol. % in Fe- and Al-rich zones, respectively. Andradite component varies betwe...
Article
Full-text available
Stilpnomelane was recently identified at the Trohanka locality near Prakovce, Slovakia. It forms nests up to several cm in size or veinlets up to 2 cm thick, which consist of reddish-brown to golden-brown platy aggregates in coarsegrained amphibole (predominantly ferro-hornblende). Microscopic aggregates of epidote were also observed in association...
Article
Application of the calcite-dolomite solvus geothermometry is focused on determination of the metamorphic conditions of the Middle Triassic carbonates from the locality Pliešovce (Slovak Republic). The metacarbonates represent a Mesozoic cover of the Southern Veporic. The temperature conditions of recrystallization have been calculated on the basis...
Article
Full-text available
209 Úvod Článok prináša nové informácie o minerálnom zložení mramorov, ktoré môžu byť perspektívne použité pre do-plnenie poznatkov geodynamického vývoja klátovského komplexu gemerika. Skúmané mramory neboli doteraz v takomto rozsahu podrobne študované a publikačne spra-cované. Geologická charakteristika Koncepcia geologického vývoja klátovského ko...
Conference Paper
Full-text available
Remnants of the south-vergent Variscan basement structure were recognized in the higher-grade complexes of the Cretaceous Tatric and Veporic units of the Inner Western Carpathians (Putiš, 1992). The Upper Variscan Unit paragneisses with emplaced bodies of orthogneisses, layered amphibolites, eclogites and serpentinites were thrust over the Middle V...
Conference Paper
Full-text available
The Eoalpine orogeny segments are characteristic in Alcapia, Tisia, Dacia and Adria microplates (Schmid et al., 2004, 2008; Handy et al., 2010). The Eoalpine events were dated in the Slavonian Mts. (115–110/80 Ma; Balen et al., 2017), Apuseni Mts. (125–100/80 Ma; Dallmeyer et al., 1996, 1999; Reiser et al., 2016), Western Carpathians (135–100/70 Ma...
Poster
Full-text available
Remnants of the south-vergent Variscan basement structure were recognized in the higher-grade complexes of the Cretaceous Tatric and Veporic units of the Inner Western Carpathians (Putiš, 1992). The Upper Variscan Unit paragneisses with emplaced bodies of orthogneisses, layered amphibolites, eclogites and serpentinites were thrust over the Middle V...
Article
Full-text available
The chemical zonality of amphiboles in contact zone of marbles and metabasites in the locality Trohanka near Prakovce (Slovakia) was identified. Observed locality belongs to the Gelnica Group of Early Paleozoic of Gemericum (Late Silurian - Devonian). The zonality reflects chemical composition of core and rim parts of amphibole crystals. In the sam...
Conference Paper
Full-text available
The Paleozoic complexes of the Western Carpathians were dated by U-Pb SIMS and LA-ICP-MS methods on zircon. Igneous precursors of a lower-crustal layered amphibolite complex were dated from 503 to 450 Ma from the Tatric and Veporic Variscan basement, including an eclogite lens (478±3 Ma, at Heľpa). They are contemporaneous with associated granitic...
Conference Paper
Full-text available
The Eo-Alpine orogeny segments of the Inner Western Carpathians (IWC) provide white mica 40Ar–39Ar plateau ages of ca. 115–80 Ma (less 50–45 Ma) in the Infratatric (IFTA, Putiš, 1992) zone, ca. 100–70 Ma (less 50–45 Ma) in the northern Tatric (TA) zone, or ca. 125–85 Ma in the Veporic and Gemeric zones (Dallmeyer et al., 1996, 2005; Putiš et al., 2...
Article
Full-text available
Two types of Paleogene sandstone with different initial porosity and strength were studied after their exposure to high temperatures. Cylindrical rock specimens were heated for six hours in a muffle furnace at 400, 600, 800 and 1000 °C, and subsequently, cool samples were tested to determine their uniaxial compressive strength, water absorption and...
Article
Titanite inclusions (L ≈ 10-60 μm) regularly dispersed in a grossular porphyroblast (V = 0.068 cm3) from calc-silicate rock have been studied using the X-ray high resolution micro-tomography (Nanotom 180). This advanced methodical approach allowed the direct acquiring of the titanite crystal size distribution CSD and its numerical assessment that f...
Article
Full-text available
Abstract: Major, trace, and rare earth element as well as C, O, and Sr isotope geochemistry is used to provide new insights into the characteristics and depositional environment of the protolith of the Föderata Group metacarbonates in the southern Veporicum cover sequence (Western Carpathians, Slovakia). The metacarbonates are characterized by high...
Conference Paper
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The acidic to intermediate composition and different age of volcanic rocks could indicate two timely postponed Permian volcanic phases in the Infratatric pre-Mesozoic basement: 1) The early Permian acidic, and 2) Late Permian intermediate one.
Poster
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Monazite (CHIME) and zircon (SIMS) dating results from Permian acid volcanic rocks of the Infratatric Unit (Western Carpathians) are presented.
Poster
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Monazite (CHIME) and zircon (SIMS) dating results from Permian acid volcanic rocks of the Infratatric Unit (Western Carpathians) are presented.
Article
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The carbonate-silicitic clasts were discovered near village Bohúňovo in the Meliata tectonic unit. Rocks are localized in the south part of the old quarry. Main part of quarry consists of the Honce Limestones, which are present in the form of olistholiths in the Jurrasic melange of the Meliata. Studied calcareous-silicitic clastic rocks surround ra...
Research
Full-text available
The prograde metamorphic stage of the Hnúšťa - Ostrá marbles is indicated by the phlogopite and the tremolite mineral assemblages. On the other hand talc, a muscovite and a clinochlore are characteristic for the retrograde mineral associations. Occurrences of a calcite and a dolomite in the marbles are represented by the two generations. First is d...
Research
Full-text available
The body of Mg skarn from Včelín - south near Hodruša-Hámre village (Slovak Republic) is developed at the contact of Neogene granodiorite with the Middle to Upper Triassic dolomitic limestone. Except of carbonates (dolomite, calcite) the most common minerals of Mg skarn, which were formed during the prograde stage are forsterite and spinel (Fe2+ 0....
Article
Full-text available
Grossular garnet, enriched in Cr and V, forms rare subhedral crystals (up to 40 μm in size) with diopside, albite, K-feldspar, titanite and clinozoisite in Ca-skarn near Dubová, Malé Karpaty Mts., Western Carpathians (SW Slovakia). The skarn is situated along the contact between Devonian limestones and Carboniferous granitic rocks. Grossular crysta...
Article
Full-text available
This study reconstructs the late stages in the exhumation history of a nappe derived from the Meliatic accretionary wedge in the Western Carpathians by means of zircon and apatite (U-Th)/He dating. The Meliatic accretionary wedge formed due to the closure of the Neotethyan Triassic–Jurassic Meliata–Hallstatt Ocean in the Late Jurassic. The studied...
Article
Full-text available
This contribution describes the occurrence of magnesio-riebeckite in marbles from Šugov valley, near Medzev within Bôrka nappe, in Meliata unit (Slovak Republic). Magnezio-riebeckite belongs to high pressure mineral assemblage that was locally identified in studied samples of Šugov marbles. Šugov marbles consist of Cal + Qtz ± Mg-Rbk ± Chl ± Hem mi...
Article
Full-text available
Dolomitic marble from the Thassos Island in Greece consists of the Dol ± Cal + Tr ± Tlc + Srp retrograde mineral assemblage. The retrograde phase of metamorphism of the studied marble took place under the amphibolite facies conditions. The average calculated temperature of recrystalization of calcite reached 496 ± 9°C, calculated according to the f...
Article
Full-text available
The examined sample of Ca-skarn (calc-silicate rock) from the locality Dolinkovský Hill of Modra-Harmónia is geologically incorporated into Pezinok group crystalline basement of Malé Karpaty Mts. It represents a contact metamorphism product of granite intrusion Modra massif. 3D distribution of titanite inclusions was studied in 6 mm garnet porphyro...
Article
Full-text available
The paper deals with sodium sulphate crystallization in pore spaces of Thassos marble and presents the 3D visualization of intergranular fractures causing a deterioration of the specimen by the salt crystallization. Cylindrical marble specimen with diameter 20 mm and length 50 mm has been submitted to 15 cycles of the dipping in 14 % solution of mi...
Article
Full-text available
Minerals published during the period 2006 to 2010 from the area of Slovak Republic are described in this paper. The descriptions of 237 mineral species including 5 elements, 65 sulphides and sulphosalts, 3 halides, 36 oxides and hydroxides, 18 carbonates, 14 sulphates, 34 phosphates including arsenates, vanadates and 62 silicates are given. Most of...
Article
Full-text available
P-T conditions of the Alpine regional metamorphism of carbonate successions which form the cover sequence of the southern Veporicum crystalline basement have been determined. The P-T estimates were calculated on the basis of microprobe chemical analyses of equilibrium mineral assemblages together with analyses of bulk rock chemical composition. The...
Conference Paper
Full-text available
Studied region represents the Tuhár Karst, which is built of sequences correlated with the Federata Group (southern Veporicum). Its marbles are exploited in the quarry (near village of Ružiná). Calcite speleothems were studied by microscopic study, X-ray diffraction, microprobe analyses. Microthermometric results measured of fluid inclusions in cal...
Article
Full-text available
At plastic processing of rocks, the size of mine blocks,is not decisive but aesthetically interesting textural and coloured parts of raw materials. Technologically are compact positions of travertine with a stripe texture, originating from the Hradišťa pod Vrátnom. An attractive raw material for the production of artificial jewelleries are onyx mar...
Article
Full-text available
rámci föderatskej skupiny, ktorá tvorí súas obalového mezozoika južného veporika boli vyhodnotené P-T podmienky metamorfózy meta-karbonátov vystupujúce v troch oblastiach. Typový profil metakarbonátov je situovaný v oblasti doliny Dobšinského potoka s pokraovaním izolovaných výskytov v Plakovej doline a v oblasti tzv. tuhár-skeho mezozoika. Jednotl...

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Projects (5)
Project
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.