Mediterranean Tertiary lamproites derived from multiple source components in postcollisional geodynamics

Prelević, Dejan; Foley, Stephen F.; Romer, Rolf L.; Conticelli, Sandro

doi:10.1016/j.gca.2008.01.029

Cited by 246 publications

(206 citation statements)

References 167 publications

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“…4) requires extensive element transfer to the mantle wedge, which can be accomplished by large degrees of sediment melting (Peccerillo & Martinotti 2006). Such a contamination process is strikingly distinct from that envisaged for the nearby Roman and Intra-Apennine provinces, a conclusion corroborated by recent geochemical and isotopic investigations (Conticelli et al 2002Avanzinelli et al 2009;Prelevic et al 2008Prelevic et al , 2010. Moreover, the highly 'primitive' characters of some rocks, especially lamproites, and their moderate or low concentrations of Na 2 O and CaO suggest a residual harzburgite as the pre-metasomatic mantle rock, probably representing the local lithosphere (e.g.…”

Section: Tuscanymentioning

confidence: 90%

“…Therefore, distinct modalities of contamination processes are required by geochemical data. Peccerillo & Martinotti (2006) noticed that an association of lamproitic, calc-alkaline and shoshonitic rocks, with compositions similar to those in Tuscany, also occurs in the Western Alps (about 30 Ma) and in the Betic Cordillera of southeastern Spain (from 23 to 6 Ma; see Prelevic et al 2008Prelevic et al , 2010. The close compositional affinities between all these occurrences were interpreted as evidence for a similar style and a single stage of mantle contamination.…”

Section: Geodynamic Implicationsmentioning

confidence: 94%

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Magmatism, mantle evolution and geodynamics at the converging plate margins of Italy

Peccerillo

Frezzotti

2015

JGS

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Abstract:The Plio-Quaternary magmatism in the Tyrrhenian Sea area exhibits wide compositional variations, which cover almost entirely those observed for volcanic rocks worldwide. Some volcanoes (Etna, Iblei, Sardinia, etc.) range from tholeiitic to Na-alkaline, and display elemental and isotope signatures typical of FOZO and EM-1 ocean-island basalts (OIB). Other volcanoes (Aeolian Arc, Italian peninsula) range from calc-alkaline-shoshonitic to K-alkaline, exhibit typical 'subduction-related' trace element signatures (low Ta-Nb, high Rb-Cs-LREE), and show a large range of radiogenic isotope ratios, from mantle-like in the Aeolian Arc to crustal-like in central Italy. Geochemical data suggest that OIB-type magmatism originated in lithosphere-asthenosphere sources that were unaffected by recent subduction. In contrast, subduction-related magmas come from mantle sources that underwent Eocene to present mixing with various amounts and types of subducted crustal components. Fluxing of the mantle wedge by water-rich fluids from a mid-ocean ridge basalt-type slab occurred in the southern Tyrrhenian Sea, whereas interaction between peridotite and various types of sediments occurred in central Italy. These contrasting styles of mantle contaminations relate to the nature (oceanic or continental) of the foreland, slab geometry and pre-metasomatic mantle compositions, which vary greatly along the Apennine arc and are the reason for the formation of the wide variety of orogenic magmas in Italy.

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Section: Tuscanymentioning

confidence: 90%

Section: Geodynamic Implicationsmentioning

confidence: 94%

Magmatism, mantle evolution and geodynamics at the converging plate margins of Italy

Peccerillo

Frezzotti

2015

JGS

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“…The extension process in the Eocene-Oligocene (Burchfiel et al, 2008) leads to the building of new sedimentary basins. Prelević et al (2008) preferred an orogenic collapse model as part of the postcollisional volcanism for the origin of the Serbian lamproites (Tertiary in age). A recent paper by van Hinsbergen and investigated the extension of the Aegean region (Greece) since the Eocene and they proposed a 400 km extension from NE to SW.…”

Section: Tectonic Settingmentioning

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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“…Data are from Conticelli et al (1987Conticelli et al ( , 1991Conticelli et al ( , 1997Conticelli et al ( , 2002Conticelli et al ( , 2007Conticelli et al ( , 2009aConticelli et al ( , 2009bConticelli et al ( , 2010aConticelli et al ( , 2010bConticelli et al ( , 2011Conticelli et al ( , 2013Conticelli et al ( , 2015a Conticelli & Peccerillo (1992), Orsi et al (1995), Civetta et al (1997), Ayuso et al (1998), Conticelli (1998), D'Antonio et al (1999a, Castorina et al (2000), Mascle et al (2001), Pappalardo et al (1999Pappalardo et al ( , 2002a, Gasperini et al (2002), Perini et al (2000Perini et al ( , 2003Perini et al ( , 2004, Downes et al (2002), Bell et al (2004Bell et al ( , 2013, ), Cadeaux et al (2005), De Astis et al (2006, Peccerillo & Martinotti (2006), Di Rienzo et al (2007, 2008, Owen (2007), Avanzinelli et al (2008Avanzinelli et al ( , 2012aAvanzinelli et al ( , 2014, …”

Section: Excursion Notesmentioning

confidence: 99%

The Vesuvius and the other volcanoes of Central Italy

Avanzinelli¹,

Cioni²,

Conticelli³

et al. 2017

GFT

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Mediterranean Tertiary lamproites derived from multiple source components in postcollisional geodynamics

Cited by 246 publications

References 167 publications

Magmatism, mantle evolution and geodynamics at the converging plate margins of Italy

Magmatism, mantle evolution and geodynamics at the converging plate margins of Italy

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

The Vesuvius and the other volcanoes of Central Italy

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