Late Miocene to Pleistocene potassic volcanism in the Republic of Macedonia

Yanev, Yotzo; Boev, Blažo; Doglioni, Carlo; Innocenti, Fabrizio; Manetti, Piero; Pécskay, Zoltán; Tonarini, S.; D’Orazio, Massimo

doi:10.1007/s00710-008-0009-2

Cited by 21 publications

(43 citation statements)

References 30 publications

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“…SiO2 vs. Na2O + K2O and SiO2 vs. 87Sr/86Sr diagrams for Sava zone and Vardar zone including sign legend. Data from Balen and Pamić, 2001;Cvetković et al, 2004;Pamić et al, 1995;Pamić and Balen, 2001;Prelević et al, 2005Prelević et al, , 2007Yanev et al, 2008. Symbols are shown.…”

Section: Resultsmentioning

confidence: 99%

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

Seghedi¹,

Downes

2011

Gondwana Research

139

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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: Resultsmentioning

confidence: 99%

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

Seghedi¹,

Downes

2011

Gondwana Research

139

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“…A hyperbolic mixing curve for different ratios of (Sr/Nd) EMII /(Sr/Nd) DM shows mixing between a depleted mantle (DM) and an enriched mantle (EMII) source. It illustrates that the measured Sr-Nd isotopic ratio is a result of magma mixing or crustal contamination (Cvetković et al, 2004;Depaolo and Wasserburg, 1979;Graf, 2001;Marchev et al, 2004;Prelević et al, 2005;Rollinson, 1993;Yanev et al, 2008 Nd vs. time plot (age in Ma). It shows the evolution of Nd isotope ratios during the last 35 Ma in Macedonia and Serbia (Cvetković et al, 2004;Graf, 2001;Marchev et al, 2004;Prelević et al, 2005;Yanev et al, 2008).…”

Section: Ree/hf In Zirconmentioning

confidence: 94%

“…Only a few isotopic analyses are available for young magmatic rocks of this region (intrusive rocks from F.Y.R. of Macedonia, Serbia and Bulgaria; Yanev et al, 2008;Prelević et al, 2005;Marchev et al, 2004;Cvetković et al, 2004) which are plotted with our data on Fig. 7A and B (Table 4).…”

Section: Sr and Nd Isotopesmentioning

confidence: 99%

Geochronology, geochemistry and isotope tracing of the Oligocene magmatism of the Buchim–Damjan–Borov Dol ore district: Implications for timing, duration and source of the magmatism

Lehmann

Barcikowski

Quadt

et al. 2013

Lithos

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. show that the magmatic products were slightly contaminated by continental crust material, e.g., the Variscan/Cadomian basement. In the Late EoceneOligocene belt the magmatism between 29 and 35 Ma is dominated by crustal melting with an increase in the mantle contribution between 20 and 27 Ma. We suggest the following scenario for the magmatic history of the Buchim-Damjan-Borov Dol ore district: a slab rollback of an oceanic slab located further to the SW which led to extensional and compressional features in upper levels of the continental crust. In the middle to upper crust three consecutive crystallization stages occurred at variable depths as indicated by amphibole zonation. Mixing of newly formed crust with mantle-like affinities and continental crust material in variable degrees during the ascent of the magma can explain all geochemical characteristics. The magma crystallized as dykes or stocks near the Earth's surface (N 1 km) after its final emplacement and contemporaneous hydrothermal activity led to different mineralization styles depending on the lithology of the host rocks.

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“…in FYR Macedonia to Voras Mts. in Greece (Janković, 1993;Pe-Piper and Piper 2002;Yanev et al 2008). The major elemental components of the Allchar deposit are Sb, As, Tl, Fe and Au, accompanied by minor Hg and Ba, and traces of Pb, Zn, Cu.…”

Section: Main Geological Characteristics Of the Allchar Depositmentioning

confidence: 99%

“…The following were analyzed: sanidines from andesite from the Crven Dol locality (Troesh and Franc, 1992), biotites, feldspars and amphiboles from latite from the Kojčov Rid locality (Neubauer et al 2009a), feldspars from the zones of intensively altered volcanites from the ADR and Rudina localities (Neubauer et al, 2009a), biotites from tuffs (Neubauer et al, 2009a)from the Vitačevo locality, and feldspars from tuffs from the Rudina locality (Neubauer et al, 2009a). The data on the petrologic and geochemical characteristics of the analyzed rocks may be found in the papers of Boev (1988), Yanev et al (2008) and Neubauer et al (2009a and2009b), whereas the results of the conducted investigations are shown in Table 1. Based on the above, it is possible to infer that two basic stages of volcanogenic-intrusive activity occurred in the broader Allchar deposit area: 1-the older, Miocene stage of volcanic activity, comprising the dikes of calc-alkali rocks fully hydrothermally altered during Pliocene and 2-a younger stage of volcanism of Pliocene age, which developed in the broader Allchar deposit area.…”

Section: The Age Of Mineralization and Of Volcanic Rocksmentioning

confidence: 99%

Allchar Deposit in Republic of Macedonia – Petrology and Age Determination

Boev¹,

Jelenković²

2012

Petrology - New Perspectives and Applications

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Late Miocene to Pleistocene potassic volcanism in the Republic of Macedonia

Abstract: The potassic (K) to ultrapotassic (UK) volcanic rocks cropping out in the Vardar Zone of Macedonia and southern Serbia span in age from Late Miocene (6.57 Ма)

Cited by 21 publications

References 30 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

Geochronology, geochemistry and isotope tracing of the Oligocene magmatism of the Buchim–Damjan–Borov Dol ore district: Implications for timing, duration and source of the magmatism

Allchar Deposit in Republic of Macedonia – Petrology and Age Determination

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