Characteristics of the lithospheric mantle beneath East Serbia inferred from ultramafic xenoliths in Palaeogene basanites

Cvetković, Vladica; Downes, Hilary; Prelević, Dejan; Jovanovic, M Dusan; Lazarov, Marina

doi:10.1007/s00410-004-0607-x

Cited by 36 publications

(41 citation statements)

References 75 publications

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“…1) form a north-south line within the Carpatho-Balkan tectonic terrain as a continuation of the volcanic chain of the Apuseni Mts (Cvetković et al 2004). Jovanović et al (2001) and Cvetković et al (2004Cvetković et al ( , 2007Cvetković et al ( , 2010Cvetković et al ( , 2013 presented detailed descriptions of the magmatism and the mantle xenoliths. They suggested that the lithospheric mantle underneath East Serbia is more depleted than the normal European lithosphere and described two different types of orthopyroxene-rich lithologies.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…The first The inset shows volcanic fields in Poiana Ruscă after Kräutner (1969) and locations of analysed samples. EOL EOLOGICA CARPA OGICA CARPA OGICA CARPA OGICA CARPA OGICA CARPATHICA THICA THICA THICA THICA, 2015, 66, 6, 499-514 type of websterites was interpreted by interaction with percolating mafic alkaline melts (Cvetković et al 2004), the second type in relation to crystallization of subduction-related presumably boninitic melts (Cvetković et al 2007). Marchev et al (2006Marchev et al ( , 2008 also described a pyroxenerich mantle xenolith suite from the Oligocene alkali basaltlamprophyre series as underplated cumulate rocks.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…Kelemen et al 1992;Arai et al 2003Arai et al , 2004, (2) reaction products of interaction between mantle wall rock and silica-rich melts of alkali basaltic origin percolating in the mantle (e.g. Arai et al 2006;Dantas et al 2009), (3) maficultramafic cumulates crystallized at mantle depth (EmbeyIsztin et al 1989;Santos et al 2002;Cvetković et al 2004Cvetković et al , 2007Bali et al 2007) and (4) products of infiltration-crystallization-reaction processes (Wulff-Pedersen et al 1996. These rocks have been described from several localities of the Carpathian-Pannonian-Balkan Region (Embey-Isztin et al 1989, 2001Cvetković et al 2004Cvetković et al , 2007Bali et al 2007Bali et al , 2008Marchev et al 2008;Embey-Isztin & Dobosi 2011;Berkesi et al 2012) and show wide variations.…”

Section: Introductionmentioning

confidence: 99%

“…Arai et al 2006;Dantas et al 2009), (3) maficultramafic cumulates crystallized at mantle depth (EmbeyIsztin et al 1989;Santos et al 2002;Cvetković et al 2004Cvetković et al , 2007Bali et al 2007) and (4) products of infiltration-crystallization-reaction processes (Wulff-Pedersen et al 1996. These rocks have been described from several localities of the Carpathian-Pannonian-Balkan Region (Embey-Isztin et al 1989, 2001Cvetković et al 2004Cvetković et al , 2007Bali et al 2007Bali et al , 2008Marchev et al 2008;Embey-Isztin & Dobosi 2011;Berkesi et al 2012) and show wide variations. Some studies have proposed the origin of these orthopyroxene-enriched rocks as mantle-depth crystallization products from boninitic melts (Embey-Isztin et al 1989;Cvetković et al 2007;Bali et al 2007Bali et al , 2008.…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have proposed the origin of these orthopyroxene-enriched rocks as mantle-depth crystallization products from boninitic melts (Embey-Isztin et al 1989;Cvetković et al 2007;Bali et al 2007Bali et al , 2008. Some recent papers (Cvetković et al 2004(Cvetković et al , 2010Embey-Isztin & Dobosi 2011) suggested the possibility of orthopyroxene-rich (poikilitic) lithologies as resulting from magmatic modification of the lithospheric mantle via infiltrating (alkaline) mafic melt.…”

Section: Introductionmentioning

confidence: 99%

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Orthopyroxene-enrichment in the lherzolite-websterite xenolith suite from Paleogene alkali basalts of the Poiana Ruscă Mountains (Romania)

Nédli¹,

Szabó²,

Dégi³

2015

Geologica Carpathica

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Abstract:In this paper we present the petrography and geochemistry of a recently collected lherzolite-websterite xenolith series and of clinopyroxene xenocrysts, hosted in Upper Cretaceous-Paleogene basanites of Poiana Ruscă (Romania), whose xenoliths show notable orthopyroxene-enrichment. In the series a slightly deformed porphyroclastic-equigranular textured series could represent the early mantle characteristics, and in many cases notable orthopyroxene growth and poikilitic texture formation was observed. The most abundant mantle lithology, Type A xenoliths have high Al-and Na-contents but low mg# of the pyroxenes and low cr# of spinel suggesting a low degree ( < 10 %) of mafic melt removal. They are also generally poor in overall REE-s (rare earth elements) and have flat REY (rare earth elements + Y) patterns with slight LREE-depletion. The geochemistry of the Type A xenoliths and calculated melt composition in equilibrium with the xenolith clinopyroxenes suggests that the percolating melt causing the poikilitization can be linked to a mafic, Al-Na-rich, volatile-poor melt and show similarity with the Late Cretaceous-Paleogene (66-72 Ma) subduction-related andesitic magmatism of Poiana Ruscă. Type B xenoliths, with their slightly different chemistry, suggest that, after the ancient depletion, the mantle went through a slight metasomatic event. A subsequent passage of mafic melts in the mantle, with similar compositions to the older andesitic magmatism of Poiana Ruscă, is recorded in the pyroxenites (Fe-rich xenoliths), whereas the megacrysts seem to be cogenetic with the host basanite. The Poiana Ruscă xenoliths differ from the orthopyroxene-enriched mantle xenoliths described previously from the Carpathian-Pannonian Region and from the Dacia block.

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Section: Geological Backgroundmentioning

confidence: 99%

Section: Geological Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Orthopyroxene-enrichment in the lherzolite-websterite xenolith suite from Paleogene alkali basalts of the Poiana Ruscă Mountains (Romania)

Nédli¹,

Szabó²,

Dégi³

2015

Geologica Carpathica

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

et al. 2008

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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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Characteristics of the lithospheric mantle beneath East Serbia inferred from ultramafic xenoliths in Palaeogene basanites

Cited by 36 publications

References 75 publications

Orthopyroxene-enrichment in the lherzolite-websterite xenolith suite from Paleogene alkali basalts of the Poiana Ruscă Mountains (Romania)

Orthopyroxene-enrichment in the lherzolite-websterite xenolith suite from Paleogene alkali basalts of the Poiana Ruscă Mountains (Romania)

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

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

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