This paper presents the basic structural elements of the dome of Veliki Jastrebac, as well as the chronology and mechanisms of the deformational events responsible for its formation. It was determined that the dome of Veliki Jastrebac consists of two large sequences which are, in the vertical section, in the inverse position. The lower part is made of Late Cretaceous and Cretaceous-Palaeogene low-grade to medium-grade metamorphic rocks, which are intruded by Paleogene granitoid (probably the Vardar Zone), which are covered with a large overthrust consisting metamorphics of the Serbian-Macedonian Mass. The low-grade to medium-grade metamorphosed complex of Veliki Jastrebac, with the granitoid, represents a metamorphic core complex, exhumed by mechanisms of extensional tectonics in the Paleogene

Low-grade metamorphic rocks of the crystalline of Mts. Bukulja and Vencac, which are integral parts of the Vardar Zone, are of Late Cretaceous age. From the Middle Paleogene to the beginning of the Miocene, they were subjected to three phases of intensive deformations. In the first phase, during the Middle Paleogene, these rocks were subjected to intense shortening (approximately in the E-W direction), regional metamorphism and deformations in the ductile and brittle domains, when first-generation folds with NNE-SSW striking fold hinges were formed. In the second phase, during the Late Oligocene and up to the Early Miocene, extensional unroofing and exhumation of the crystalline occurred, which was followed by intrusion of the granitoid of Bukulja and refolding of the previously formed folds in a simple brachial form of Bukulja and Vencac with an ESE-WNW striking B-axis. The third phase was expressed in the Early lowermost Miocene (before the Ottnanghian), under conditions of NE-SW compression and NW-SE tension. It was characterized by wrench-tectonic activity, particularly by dextral movements along NNW-SSE striking faults.

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The peculiar Jadar block has an intervening position separating the main Neotethyan West Vardar Zone (including ophiolites of late Jurassic age) and a passive margin lithospheric segment of the Apulia-Adria microplate referred to as the Drina-Ivanjica block. The review aimed to reassess the peri-Neotethyan paleogeography affecting the evolution of the Neotethyan oceanic crust ('single' v/5. 'multiple oceans' or single-v/5. two ophiolite belts) by juxtaposing the key differences of the late Variscan temporal evolution (controlling early Alpine paleogeography) between the Jadar block and Drina-Ivanjica crystalline segment. The study goal is the questionable paleogeographic affinity of the Jadar block. Contrary to the recent inferences attributing the Jadar block as a segment of the Apulia/Adria microplate, the study examine whether and how the Jadar late Paleozoic succession may allow for an alternative paleogeographic solution of the Neotethyan relevance. According to this comparison survey of these late Paleozoic successions, it appears that the Jadar block may carry a (tentative) evidence of the proximity of the western Paleotethys. The comparison yields a putative paleogeographic position associating the Jadar block with the post-Variscan European margin (not Apulia/Adria microplate). The proposed shift of the Permian-Triassic paleogeographic position of the Jadar block inevitably affects the obduction length i.e. questions a favourable protracted along strike-width of the overriding Neotethyan West Vardar ophiolites ('single ocean model'). AncTpaKT. JaflapcKH6 ; i o k ce Ha;ia3H H3Mehy raaBHor fle^a HeKaflauiHjer HeoTeTHca h ; i h 3anaflHe Bap^apcKe 30He h /],pHHCKO-HBaH>HHKe nacHBHe MaprHHe Koja npnnafla Any/bCK0-jaflpaHCK0j MHKpon^OHH. LJn/b 0 B 0r p a#a je KpaTKa peeBajiyau;Hja paHe <})a3e o 6 o ,o ,h h x fle^OBa HeoTeTHCKe n a^e o re o -rpaer HeoTeTHca. y HOBHjHM pa-flOBHMa Ja^apcKH 6 ; i o k je necTO npeflCTaB^eH Kao fleo AnyACKO-jaflpaHCKe MHKpon^one, a o k ce y 0B0j CTy^Hjn yKa3yje Ha M0ryhH0CT /ja OBaj 6 ; i o k Ha / Jp u H C K O -u e a tb U H K u 6sio k, nepMO-mpujacKa na/ieoseozpacpuja, nasieomemuc, Heomemuc. 0CH0By c b o j h x KapKaTepncTHKa MO>Ke 6 h t h (pe)HHTepnpeTHpaH Kao ce r-MeHT n0CT-BapHCu,H]CKe jy>KHoeBponcKe MaprHHe, Koja je 6HJia nofl yTHu,ajeM 3aTBapaHja najieoTeTH ca. HoBoyTBpl)eHa no3Hii,Hja JaflapcKor 6jioKa yTHne Ha r0pH>0jypcK0-fl0Hj0KpeflHy TeKTOHCKy HHTepnpeTau,Hjy 3anaflHOBapflapc k h x 0(J)H0^HTa Kao h npefl^o>KeHy fly>KHHy caMor 06,qyK0BaH>a npeKO aH3JIH3HpaHHX flOMHHaHTHO Iia./ie030jCKHX 6jIOKOBa. This research did not receive any specific grant from funding agencies in the public, com m ercial or not-forprofit sectors. Authors would like to thank anonym ous review ers for the suggested im provem ents o f the m anuscript content. We are also grateful to Dr T e a K o l a r -J u r k...

In a gravel pit at the eastern margin of the Eisenstadt-Sopron Basin, a satellite of Vienna Basin (Austria), Neogene sediments are exposed in the hanging wall of a major normal fault. The anticlinal structure and associated conjugated secondary normal faults were previously interpreted as a rollover anticline above a listric normal fault. The spatial orientation and distribution of sedimentary horizons and crosscutting faults were mapped in detail on a laser scan of the outcrop wall. Subsequently, in order to assess the 3D distribution and geometry of this fault system, a series of parallel ground penetrating radar (GPR) profiles were recorded behind the outcrop wall. Both outcrop and GPR data were compiled in a 3D structural model, providing the basis for a kinematic reconstruction of the fault plane using balanced cross-section techniques. However, the kinematic reconstruction results in a geologically meaningless normal fault cutting downand up-section. Additionally, no evidence for a weak layer serving as ductile detachment horizon (i.e. salt or clay horizon) can be identified in stratigraphic profiles. Instead, the observed deflection of stratigraphic horizons may be caused by a displacement gradient along a planar master fault, with a maximum displacement in the fault centre, decreasing towards the fault tips. Accordingly, the observed deflection of markers in the hanging wall-and in a nearby location in the footwall of the normal fault-is interpreted as large-scale fault drag along a planar fault that records a displacement gradient, instead of a rollover anticline related to a listric fault.

The balancing exercise of the "single-ocean model? and reexamination of Jurassic paleogeographic conditions and tectonic interaction allowed the reconstruction of the mosaic of independent microplate margins and sutured northwestern Tethyan realm (Vardar Ocean}. The overprinted Mesozoic convergent margin referred to as the 'Zvornik suture? was of special interest in the reconstruction of the displaced ophiolite belts of Dinarides and Vardar Zone. The surface-subsurface constraints of these mixed crustal units, in particular the polyphase strike-slip character of the 'Zvornik suture? yields the presence of at least two of Neotethyan basins extrapolated in the vicinity of the northwestern segment of this paleosuture. The restoration and synopsis shows a limited capability for obduction-related emplacement of the Vardar oceanic lithosphere (West Vardar Zone} accounting the polyphased strike-slip tectonics. The balancing and the proposed tectonic/paleogeographic reconstruction does not exclude obduction, but it shows a limited capability with much shorter across-strike width of the highly-deformed West Vardar ophiolite. The presence of the two distinct autochthonous Tethyan oceans divided by this important dextral strike-slip fault zone is suggested: The Inner Dinaric-( Mirdita-Pindos) Ocean or Dinaric Tethys (identified by the Inner Dinaric Ophiolite Belt) and the Vardar Ocean (identified by the West Vardar Zone). The West Vardar Zone remains to be a subzone of the principal composite Neotethyan suture referred to as the Vardar Zone s.s., whereas the Dinaric Tethys have been (re)incorporated to the area of Dinarides (Adria microplate). The northern segments of these two landlocked basins were on both sides of the Inner Dinaridic continental ridge (referred to as the Drina-Ivanjica block), divided by the protracted strike-slip activity of the 'Zvornik suture?.

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