Tertiary Ultrapotassic Volcanism in Serbia: Constraints on Petrogenesis and Mantle Source Characteristics

Prelević, Dejan; Foley, Stephen F.; Romer, Rolf L.; Cvetković, Vladica; Downes, Hilary

doi:10.1093/petrology/egi022

Cited by 152 publications

(149 citation statements)

References 114 publications

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“…From 30 Ma to 15 Ma, basaltic (sensu lato) magmatism took place in the intermediate/lower crust (e.g. Cvetković et al 2004;Prelević et al 2005) causing an increase of isotherms in the area and providing conditions for partial melting of intermediate and lower crust (see below; e.g Annen, Blundy & Sparks, 2006). Perugini & Poli (2005) showed that the initial stages of magma interaction, when the mafic magma enters the felsic magma chamber, are governed by viscous fingering dynamics.…”

Section: A Qmzdmentioning

confidence: 99%

“…Brunn, 1960;Marović et al 1999Marović et al , 2001). Studies of basaltic and potassic/ultrapotassic rocks from the central Balkan Peninsula Prelević et al 2005) imply a major role for the postcollisional orogenic collapse of the Dinarides, and such an interpretation can likely be valid for the origin of temporally and spatially related granitoid rocks. Similar processes have already been recognized in other orogenic systems (e.g.…”

Section: Geodynamic Constraintsmentioning

confidence: 99%

“…13a) and continued up to the end of Oligocene and beginning of Miocene times (e.g. Prelević et al 2005). The underplating produced high heat flow in the lower crust that was able to induce partial melting of amphibolitic/andesitic lower crust and production of GDS-like magmas.…”

Section: Geodynamic Constraintsmentioning

confidence: 99%

“…Cvetković et al 2004;Prelević et al 2005;Prelević, Foley & Cvetković, 2007). Along with widespread volcanic rocks, there are numerous granitoid plutons occurring within the composite terranes of the Vardar Zone and Serbo-Macedonian Massif ( Fig.…”

Section: Introductionmentioning

confidence: 99%

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Petrogenetic and tectonic inferences from the study of the Mt Cer pluton (West Serbia)

et al. 2010

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-The Mt Cer Pluton, Serbia, is a complex laccolith-like intrusion (∼ 60 km 2 ), situated along the junction between the southern Pannonian Basin and northern Dinarides. It intrudes Palaeozoic metamorphic rocks causing weak to strong thermal effects. Based on modal and chemical compositions, four rock-types can be distinguished: (1) metaluminous I-type quartz monzonite/quartz monzodiorite (QMZD); (2) peraluminous S-type two-mica granite (TMG), which intrudes QMZD; (3) Stražanica granodiorite/quartz monzonite (GDS); and (4) isolated mafic enclaves (ME), found only in QMZD. 40 K-39 Ar dating and geological constraints indicate that the main quartz monzonite/quartz monzodiorite body of Mt Cer was emplaced not later than 21 Ma, whereas the emplacement ages of the Stražanica granodiorite/quartz monzonite and two-mica granites are estimated at around 18 and 16 Ma, respectively. The Mt Cer pluton is similar to the Mt Bukulja pluton, some 80 km southwestwards. Genesis of QMZD cannot be interpreted by fractional crystallization coupled with mixing or assimilation. It is best explained by a convection-diffusion process between mantle-derived minette/leucominette magmas and GDS-like magmas followed by two end-member magma mixing. The composition of GDS rocks suggests that GDS-like magmas could have formed by melting of lower crustal lithologies similar to amphibolite/metabasalts. The geochemistry of TMG is reproduced by an Assimilation/Fractional Crystallization model with a ratio of rate of assimilation to rate of fractional crystallization of 0.4, using the compositions of the least evolved TMG of the Bukulja pluton and adjacent metamorphic rocks as proxies for the parental magma and contaminant, respectively. The origin and evolution of the Mt Cer and adjacent Mt Bukulja plutons provide new constraints on the Tertiary geodynamics of the northern Dinarides-southern Pannonian region. The quartz monzonite/quartz monzodiorite is interpreted as a result of the Oligocene post-collisional Dinaride orogen-collapse, which included a limited lithosphere delamination, small-scale mantle upwelling, and melting of the lower crust. By contrast, the two-mica granite magmas formed through melting in shallower crustal levels during the extensional collapse in the Pannonian area.

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Section: A Qmzdmentioning

confidence: 99%

Section: Geodynamic Constraintsmentioning

confidence: 99%

Section: Geodynamic Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Petrogenetic and tectonic inferences from the study of the Mt Cer pluton (West Serbia)

et al. 2010

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“…Cvetković et al 2007a). Sources for the magmatic activity in the Balkan Peninsula will be discussed by integrating the large amount of published age data on other granites and contemporaneous basaltic rocks (Cvetković et al 2004a, b;Prelević et al 2005). Also the formation of sedimentary basins, many of them associated with volcanics and/or volcaniclastics (e.g.…”

Section: Introductionmentioning

confidence: 99%

Cenozoic granitoids in the Dinarides of southern Serbia: age of intrusion, isotope geochemistry, exhumation history and significance for the geodynamic evolution of the Balkan Peninsula

Schefer¹,

Cvetković

Fügenschuh

et al. 2010

Int J Earth Sci (Geol Rundsch)

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Two age groups were determined for the Cenozoic granitoids in the Dinarides of southern Serbia by high-precision single grain U-Pb dating of thermally annealed and chemically abraded zircons: (1) Oligocene ages (Kopaonik, Drenje, Ž eljin) ranging from 31.7 to 30.6 Ma (2) Miocene ages (Golija and Polumir) at 20. 58-20.17 and 18.06-17.74 Ma, respectively. Apatite fission-track central ages, modelling combined with zircon central ages and additionally, local structural observations constrain the subsequent exhumation history of the magmatic rocks. They indicate rapid cooling from above 300°C to ca. 80°C between 16 and 10 Ma for both age groups, induced by extensional exhumation of the plutons located in the footwall of core complexes. Hence, Miocene magmatism and core-complex formation not only affected the Pannonian basin but also a part of the mountainous areas of the internal Dinarides. Based on an extensive set of existing age data combined with our own analyses, we propose a geodynamical model for the Balkan Peninsula: The Late Eocene to Oligocene magmatism, which affects the Adriaderived lower plate units of the internal Dinarides, was caused by delamination of the Adriatic mantle from the overlying crust, associated with post-collisional convergence that propagated outward into the external Dinarides. Miocene magmatism, on the other hand, is associated with core-complex formation along the southern margin of the Pannonian basin, probably associated with the W-directed subduction of the European lithosphere beneath the Carpathians and interfering with ongoing Dinaridic-Hellenic back-arc extension.

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Alpine tectono‐metamorphic history of the continental units from Vardar zone: the Kopaonik Metamorphic Complex (Dinaric‐Hellenic belt, Serbia)

et al. 2009

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The easternmost zone of the Dinaric-Hellenic belt is represented by the Vardar Zone, in which the Kopaonik Metamorphic Complex (KMC) is regarded as the lowermost unit. This complex is topped by the unmetamorphosed Brzece unit and is intruded by the Oligocene Kopaonik Intrusive complex. The KMC is characterized by a stratigraphy that includes metapelites and meta-carbonates of Late Triassic age, associated with metabasites. It is characterized by a complex deformation history that comprises four phases: D1 to D4. The D1 phase structures occur only as relict structures, whereas the D2 phase structures are represented by isoclinal F2 folds, associated with a well-developed S2 foliation. The estimated P-T conditions for the D1 and D2 metamorphism are consistent with the upper greenschist facies. The D3 phase is characterized by west-verging thrusts associated with upright folds. In contrast, the D4 phase is characterized by open folds (F4) associated with low-angle normal faults. The D1 and D2 deformation phases developed during the shortening related to continental collision, whereas the subsequent D3 and D4 phases can be related to the progressive exhumation of the KMC. The D4 phase probably developed during extensional tectonics during and after emplacement of the Kopaonik Intrusive Complex. The data show that the continental units belonging to the Vardar zone had a long-lived deformation history that was more complex that previously thought.

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Tertiary Ultrapotassic Volcanism in Serbia: Constraints on Petrogenesis and Mantle Source Characteristics

Cited by 152 publications

References 114 publications

Petrogenetic and tectonic inferences from the study of the Mt Cer pluton (West Serbia)

Petrogenetic and tectonic inferences from the study of the Mt Cer pluton (West Serbia)

Cenozoic granitoids in the Dinarides of southern Serbia: age of intrusion, isotope geochemistry, exhumation history and significance for the geodynamic evolution of the Balkan Peninsula

Alpine tectono‐metamorphic history of the continental units from Vardar zone: the Kopaonik Metamorphic Complex (Dinaric‐Hellenic belt, Serbia)

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