The contact zone between the ALCAPA and Tisza-Dacia mega-tectonic units of Northern Romania in the light of new paleomagnetic data

Marton, Emoe; Tischler, Matthias; Csontos, László; Fügenschuh, Bernhard; Schmid, Stefan M.

doi:10.1007/s00015-007-1205-5

Cited by 49 publications

(38 citation statements)

References 37 publications

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“…Fodor et al, 1999) (see Fig. 4), we suggest their generation was related to regional transtensional faulting at the block boundary during and after major counterclockwise rotation and collision of the westernmost ALCAPA block at around 14-12 Ma that generated the Transcarpathian basin (Márton et al, 2007). Generation of Na-alkalic magmatism at 4-3 Ma along the mid-Hungarian line in the Balaton area, included in the 1b group , Wijibrans et al, 2007 suggests (as in the case of Styrian basin basalts) a north-east-directed asthenosphere mantle flow and small volume partial melting that produced volcanism along NW-SE strike-slip lithospheric faults.…”

Section: 1b Western Carpathians and Pannonian Basinmentioning

confidence: 87%

“…The counter-clockwise rotations of ALCAPA and the clockwise rotation of Tisza-Dacia started at ~18.5 Ma. However after 14.5 Ma the Transcarpathian Basin area disintegrated from ALCAPA along the Hernad fault (Márton et al, 2007) and up to 11 Ma collided with the European plate. The Transcarpathian basin appears to have resulted from typical core-complex extension that allowed decoupling and flow of lower-middle crust and magma generation within the decoupling area.…”

Section: 1c Transcarpathian Basinmentioning

confidence: 99%

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Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region

Seghedi¹,

Downes

2011

Gondwana Research

137

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This updated review considers the magmatic processes in the Carpathian-Pannonian Region (CPR) during Early Miocene to Recent times, as well as the contemporaneous magmatism at its southern boundary in the Dinaride and Balkans regions. This geodynamic system was controlled by the Cretaceous to Neogene subduction and collision of Africa with Eurasia, especially by Adria that generated the Alps to the north, the Dinaride-Hellenide belt to the east and caused extrusion, collision and inversion tectonics in the CPR. This long-lived subduction system supplied the mantle lithosphere with various subduction components. The CPR contains Neogene to Quaternary magmatic rocks of highly diverse compositions (calc19 alkaline, K-alkalic, ultrapotassic and Na-alkalic) that were generated in response to complex post-collisional tectonic processes. These processes formed extensional basins in response to an interplay of compression and extension within two microplates: ALCAPA and TiszaDacia. Competition between the different tectonic processes at both local and regional scales caused variations in the associated magmatism, mainly a result of extension and differences in the rheological properties and composition of the lithosphere. Extension led to disintegration of the microplates that finally developed into two basin systems: the Pannonian and Transylvanian basins. The southern border of the CPR is edged by the Dinaride and Balkans (Sava and Vardar zones) that acted as a regional extensional tectonic setting during Miocene times. This extension was associated with small volume volcanism in narrow extensional sedimentary basins or granitoids in core-complex detachment systems. Major, trace element and isotopic data of magmatic rocks from the CPR suggest that subduction components were preserved in the lithospheric mantle after the CretaceousMiocene subduction and were reactivated especially by asthenosphere uprise via extension. Pre-collisional subduction-related volcanic activity is absent from the CPR area. Changes in the composition of the mantle through time support geodynamic scenarios of collision and extension that are linked to the evolution of the main blocks and their boundary relations. Weak lithospheric blocks (i.e. ALCAPA and western Tisza) generated the Pannonian basin and the adjacent Styrian, Transdanubian and Zărand basins which show high rates of vertical movement accompanied by a range of magmatic compositions. Strong lithospheric blocks (i.e. Dacia) were only marginally deformed, as in the northern and eastern part of the Transylvanian basin, where strike-slip faulting was associated with magmatism and extension. Strike slip tectonic and core complex extension was associated with small volume volcanism along older suture zones (Sava zone and Vardar zone) accommodating the extension in the Pannonian basin. Various magmas acted as lubricants in a range of tectonic processes.

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Section: 1b Western Carpathians and Pannonian Basinmentioning

confidence: 87%

Section: 1c Transcarpathian Basinmentioning

confidence: 99%

Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region

Seghedi¹,

Downes

2011

Gondwana Research

137

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“…As such, the Pienides define the easternmost tip of ALCAPA that is thrust over the Tisza-Dacia Mega-Units ( Fig. 3; see Tischler 2005;Tischler et al 2007;Márton et al 2007). This thrusting was kinematically linked to movements along the Mid-Hungarian fault zone during the lateral extrusion of ALCAPA.…”

Section: Remnants Of the Alpine Tethys In Alcapamentioning

confidence: 99%

The Alpine-Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units

et al. 2008

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“…The only exceptions are the South Apuseni ophiolites that presently stretch E-W due to substantial (~90 o ) clockwise rotations in the Cenozoic [70,71]. The South Apuseni ophiolites lay upon the Biharia basement, which is considered part of the westernmost margin of Dacia, i.e.…”

Section: Tectonostratigraphy and Agementioning

confidence: 99%

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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The contact zone between the ALCAPA and Tisza-Dacia mega-tectonic units of Northern Romania in the light of new paleomagnetic data

Cited by 49 publications

References 37 publications

Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region

Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region

The Alpine-Carpathian-Dinaridic orogenic system: correlation and evolution of tectonic units

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

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