A new geophysical model of the Serbian part of the East Vardar ophiolite: Implications for its geodynamic evolution

Petrovic, Dan; Cvetkov, Vesna; Vasiljević, Ivana; Cvetković, Vladica

doi:10.1016/j.jog.2015.07.003

Cited by 14 publications

(6 citation statements)

References 56 publications

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“…In the following subsections the available data on geological and geochemical characteristics of the East Vardar ophiolites in Romania [10,[29][30][31], Serbia [32][33][34][35][36], Macedonia [33][34][35][36][37] and Greece [33,[38][39][40], are summarized. The locations of the ophiolite massifs/outcrops addressed in this study are shown in Figure 1.…”

Section: East Vardar Ophiolitesmentioning

confidence: 99%

“…The contacts between the ophiolites and the Serbo-Macedonian Massif are at places sealed by Neogene sediments [43]. In [35], 2D modelling of gravity and magnetic data and pseudo-3D modelling on the East Vardar ophiolites in Serbia were reported and it was suggested that they are dipping to the east beneath the Serbo-Macedonian Massif. The age of these ophiolites is mostly geologically constrained by the age of the overstep sequence represented by Tithonian reef limestone and/or flysch-like Lower Cretaceous sedimentary rocks [44][45][46].…”

Section: Geologymentioning

confidence: 99%

“…The contacts between the East Vardar ophiolites and the Serbo-Macedonian Massif change towards the south. Recent geophysical modelling suggests that the contacts between the East Vardar ophiolites in Serbia and Macedonia and the Serbo-Macedonian Massif are steeply dipping and that at least some parts of the East Vardar ophiolites dip eastwards beneath the Serbo-Macedonian Massif [35,36]. In this area, the contact between the East Vardar and Serbo-Macedonian unit is usually marked by the presence of narrow stripes of strongly deformed phyllites that sometimes contain serpentinite blocks [51].…”

Section: Tectonostratigraphy and Agementioning

confidence: 99%

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East Vardar Ophiolites Revisited: A Brief Synthesis of Geology and Geochemical Data

et al. 2018

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The study reports and synthesizes the available geological and geochemical data on the East Vardar ophiolites comprising most known occurrences from the South Apuseni Mountains in Romania to the tip of the Chalkidiki Peninsula in Greece. The summarized geological data suggest that the East Vardar ophiolites are mostly composed of the magmatic sequences, whereas the mantle rocks are very subordinate. The members of the magmatic sequences are characterized by the presence of abundant acid and intermediate volcanic and intrusive rocks. The age of these ophiolites is paleontologically and radiometrically constrained and these data suggest that the East Vardar ophiolite formed as a short-lived oceanic realm that was emplaced before the uppermost Kimmeridgian. A relatively weak adakitic affinity is shown by intra-ophiolitic acid and intermediate rocks in many East Vardar provinces. It can be taken as evidence that the subduction of the young and hot slab, most likely along the earlier spreading ridge has occurred. A paleo-tectonic reconstruction consisting of four stages is proposed. It involves: a) an early/mid-Jurassic northnortheastward subduction of the West Vardar oceanic plate; b) the formation of a mid-Jurassic volcanic arc and a narrow back-arc oceanic stripe of East Vardar behind it; c) the mid-/Upper Jurassic initiation of East Vardar subduction along the ridge axis, and d) complex and heterogeneous emplacement of the East Vardar ophiolites. So far available data allow for having relatively clear ideas about the origin and evolution of the East Vardar ophiolites. However, in order to provide better understanding of all aspects of its evolution we need to answer additional questions related to the true structural position of the East Vardar ophiolites slices in Serbia, the exact nature of subduction that caused back-arc spreading (intraoceanic vs subduction under continent?) and the full significance of the adakitic signature shown by rocks in the East Vardar provinces other than Demir Kapija.

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Section: East Vardar Ophiolitesmentioning

confidence: 99%

Section: Geologymentioning

confidence: 99%

Section: Tectonostratigraphy and Agementioning

confidence: 99%

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East Vardar Ophiolites Revisited: A Brief Synthesis of Geology and Geochemical Data

et al. 2018

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“…Utvrđeno je i da ofiolitski kompleks Demir Kapije ima najverovatnije oblik ploče koja pada prema istoku, odnosno jugoistoku. Dobijeni rezultati su u saglasnosti sa ranijim istraživanjima [22] prema kojima cela IVZ pada prema istoku/jugoistoku i da je smeštena ispod SMM. Ovako utvrđen položaj ofiolita Demir Kapije, odnosno IVZ u saglasnosti je sa stanovištem da su ofioliti IVZ smešteni procesima prirastanja prilikom zatvaranja mezozojskog Tetisa [22], kao i sa brojnim geološko-petrološkim i geohemijskim istraživanjima [1] [9] [10].…”

Section: Zaključakunclassified

Spatial distribution of the Demir Kapija (Macedonia) ophiolite based on geomagnetic data

Petrovic¹,

Cvetkov²,

Cvetkovic³

2016

Tehnika

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“…The East Vardar Zone ophiolites can either be identified as (i) oceanic system overlain by a Serbo-Macedonian margin (gneiss-dominating crystalline rocks; rAkić DiMiTriJEVić et. al., 2001;PETroVić et al, 2015) or (ii) as ophiolite entity which overrode the Serbo-Macedonian continental margin. The latter concept is elaborated by the ophiolite obduction on top N-S to NW-SE trending subduction zone (SChMiD et al, 2008(SChMiD et al, , 2019ErAk et al, 2016;MAFFioNE & VAN hiNSBErGEN, 2018).…”

Section: Introductionmentioning

confidence: 99%

Intraoceanic subduction of the northwestern Neotethys and geodynamic interaction with Serbo-Macedonian foreland: Descending vs. overriding near-trench dynamic constraints (East Vardar Zone, Jastrebac Mts., Serbia)

Spahić¹,

Gaudenyi

2019

Geol An Balk Poluos

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A composite paleogeographic and plate kinematic spatiotemporal reconstruction of the exhumed Neotethyan cross-lithospheric footwall amalgamation (Jastrebac dome) incorporates the two formerly underplating oceanic entities, West Vardar-and East Vardar Zone. These ophiolite-bearing agglomerations are unroofed within the accretionary Paleogene to Miocene core-complex, beneath the Serbo-Macedonian overriding plate. The exposed Neotethyan crustal amalgamation is comprised of: an (i) folded trench assemblage of uncertain Mesozoic? Paleogeographic affinity metamorphosed under a greenschist-grade (West-vs. East Vardar Zone or Neotethyan crust-vs. its back-arc system?) sandwiched beneath the overlying (ii) late Cretaceous-Paleogene (meta)turbidites. To make matters more intricate, at the closest proximity of the dome (Mali Jastrebac Mountain) there is a similar (iii) greenschist-facies amalgamation comprised of the Neoproterozoic-Lower Paleozoic ocean-floor assembly (Supragetic basement). The interpretations of this rather controversial cross-lithospheric structure include a reassessment of the obduction sequence, and are underpinned by the restoration of the near-trench microplate motions. The study addresses the (1) local finite configuration (Serbo-Macedonian hanging wall vs. Neotethyan intraoceanic arc) and the (2) spatiotemporal geometry of the principal (micro)plate boundaries (Serbo-Macedonian Unit vs. Apulia/Adria). Unlike the earlier proposal of the ophiolite obduction onto the Serbo-Macedonian Unit onto the Apulia/Adria hinterland (or external segment of the "Dacia mega-terrane"), we here propose a west-vergent obduction of the East Vardar Zone ophiolites onto the descending Neotethyan lithosphere (West Vardar ophiolites)-a similar scenario to its continuation in Greece (Peonias subzone).

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A new geophysical model of the Serbian part of the East Vardar ophiolite: Implications for its geodynamic evolution

Cited by 14 publications

References 56 publications

East Vardar Ophiolites Revisited: A Brief Synthesis of Geology and Geochemical Data

East Vardar Ophiolites Revisited: A Brief Synthesis of Geology and Geochemical Data

Spatial distribution of the Demir Kapija (Macedonia) ophiolite based on geomagnetic data

Intraoceanic subduction of the northwestern Neotethys and geodynamic interaction with Serbo-Macedonian foreland: Descending vs. overriding near-trench dynamic constraints (East Vardar Zone, Jastrebac Mts., Serbia)

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