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Formation of ultrapotassic magma via crustal contamination and hybridization of mafic magma: an example from the Stomanovo monzonite, Central Rhodope Massif, Bulgaria

Published online by Cambridge University Press:  18 October 2021

Peter Marchev Open the ORCID record for Peter Marchev [Opens in a new window] ,
Raya Raicheva Open the ORCID record for Raya Raicheva [Opens in a new window] ,
Stoyan Georgiev ,
Ivan P. Savov  and
Danko Jelev
Peter Marchev*
Affiliation:
Geological Institute of Bulgarian Academy of Sciences, St. Acad. G. Bonchev bl. 24, 1113Sofia, Bulgaria
Raya Raicheva
Affiliation:
Geological Institute of Bulgarian Academy of Sciences, St. Acad. G. Bonchev bl. 24, 1113Sofia, Bulgaria
Stoyan Georgiev
Affiliation:
Geological Institute of Bulgarian Academy of Sciences, St. Acad. G. Bonchev bl. 24, 1113Sofia, Bulgaria
Ivan P. Savov
Affiliation:
School of Earth and Environment, Institute of Geophysics and Tectonics, University of Leeds, LeedsLS2 9JT, United Kingdom
Danko Jelev
Affiliation:
Eastern Resources Ltd., 1000Sofia, Bulgaria
*
Author for correspondence: Peter Marchev, Email: [email protected]
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Abstract

Generally all orogenic ultrapotassic rocks are formed after melting of metasomatized sub-continental lithospheric mantle via subducted crustal mica-bearing lithologies. Here we present another possible model, based on the study of the small Stomanovo ultrapotassic monzonite porphyry intrusion in the Central Rhodope Massif, Bulgaria. The monzonite dated at 30.50 ± 0.46 Ma is intruded into the voluminous Oligocene (31.63 ± 0.40 Ma) Bratsigovo–Dospat ignimbrite. The monzonite hosts both normally and reversely zoned clinopyroxene phenocrysts. The normally zoned clinopyroxene is characterized by gradually diminishing core-to-rim Mg no. (89–74), whereas the reversely zoned clinopyroxene has green Fe-rich cores (Mg no. 71–55) mantled by normally zoned clinopyroxene (Mg no. 87–74). Neither the core of the normally zoned clinopyroxene nor the Fe-rich green cores are in equilibrium with the host monzonite. This ultrapotassic monzonite shows more radiogenic Sr isotopes ((87Sr/86Sr)i = 0.71066) and ϵNd(t) = −7.8 to −8.0 that are distinct from the host ignimbrites with (87Sr/86Sr)i = 0.70917–0.70927 and ϵNd(t) = −4.6 to −6.5. The Sr–Nd isotopic data and the presence of copious zircon xenocrysts from the underlying metamorphic basement suggest extensive crustal assimilation. Our observations indicate that the Stomanovo ultrapotassic monzonite formed after extensive lower or middle crustal fractional crystallization from an evolved magma producing cumulates. The process was followed by hybridization with primitive mantle-derived magma and subsequent continuous crustal contamination. We suggest that instead of inheriting their high K2O and large-ion lithophile element enrichments from slab-derived/metasomatic fluids, the Stomanovo ultrapotassic monzonite may owe some of its unusually high alkalinity to the assimilation of potassium-rich phases from the Rhodope Massif basement rocks.

Keywords

ultrapotassic monzonitegreen-core clinopyroxenecrystal–melt mixingcrustal contaminationRhodope Massif
Type
Original Article
Information
Geological Magazine , Volume 159 , Issue 1 , January 2022 , pp. 81 - 96
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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References

Abbo, A, Avigad, D and Gerdes, A (2020) Crustal evolution of peri-Gondwana crust into present day Europe: the Serbo-Macedonian and Rhodope massifs as a case study. Lithos 356–357, 105295. doi: 10.1016/j.lithos.2019.105295.CrossRefGoogle Scholar
Avanzinelli, R, Elliott, T, Tommasini, S and Conticelli, S (2008) Constraints on the genesis of potassium-rich Italian volcanic rocks from U/Th disequilibrium. Journal of Petrology 49, 195–223.CrossRefGoogle Scholar
Barton, M and van Bergen, MJ (1981) Green clinopyroxenes and associated phases in a potassium-rich lava from the Leucite Hill, Wyoming. Contributions to Mineralogy and Petrology 77, 101–14.CrossRefGoogle Scholar
Barton, M, Varekamp, JC and van Bergen, MJ (1982) Complex zoning of clinopyroxenes in the lavas of Vulsini, Latium, Italy: evidence for magma mixing. Journal of Volcanology and Geothermal Research 14, 361–88.CrossRefGoogle Scholar
Beard, JS, Abitz, RJ and Lofgren, GE (1993) Experimental melting of crustal xenoliths from Kilbourne Hole, New Mexico and implications for the contamination and genesis of magmas. Contributions to Mineralogy and Petrology 115, 88–102.CrossRefGoogle Scholar
Beard, JS, Ragland, PS and Crawford, ML (2005) Reactive bulk assimilation: a model for crust-mantle mixing in silicic magmas. Geology 33, 681–4.CrossRefGoogle Scholar
Blundell, D, Arndt, N, Cobbold, PR and Heinrich, C (2005) 9: Processes of tectonism, magmatism and mineralization: lessons from Europe. Ore Geology Review 27, 333–49.CrossRefGoogle Scholar
Boari, E and Conticelli, S (2007) Mineralogy and petrology of associated Mg-rich ultrapotassic, shoshonitic, and calc-alkaline rocks: the Middle Latin Valley monogenetic volcanos, Roman Magmati Province, Southern Italy. Canadian Mineralogist 45, 1727–54.CrossRefGoogle Scholar
Bonev, N and Beccaletto, L (2007) From syn- to post-orogenic Tertiary extension in the north Aegean region: constraints on the kinematics in the eastern Rhodope–Thrace, Bulgaria–Greece and the Biga Peninsula, NW Turkey. In The Geodynamics of the Aegean and Anatolia (eds Taymaz, T, Yilmaz, Y and Dilek, Y), pp. 113–42. Geological Society of London, Special Publication no. 291.Google Scholar
Bonev, N, Marchev, P, Moritz, R and Colling, D (2015) Jurassic subduction zone tectonics of the Rhodope Massif in the Thrace region (NE Greece) as revealed by new U–Pb and 40Ar/39Ar geochronology of the Evros ophiolite. Gondwana Research 27, 760–75.CrossRefGoogle Scholar
Bonev, N, Ovtcharova-Schaltegger, M, Moritz, R, Marchev, P and Ulianov, A (2013) Peri-Gondwanan Ordovician crustal fragments in the high-grade basement of the Eastern Rhodope Massif, Bulgaria: evidence from U–Pb LA-ICP-MS zircon geochronology and geochemistry. Geodinamica Acta 26, 207–29.CrossRefGoogle Scholar
Brooks, CK and Printzlau, I (1978) Magma mixing in mafic alkaline volcanic rocks: the evidence from relict phenocryst phases and other inclusions. Journal of Volcanology and Geothermal Research 4, 315–31.CrossRefGoogle Scholar
Burg, J-P (2012) Rhodope: from Mesozoic convergence to Cenozoic extension. Review of petro-structural data in the geochronological frame. In The Geology of Greece (eds Skourtsos, E and Lister, GS). Journal of the Virtual Explorer 42, paper 1, 1–44. doi: 10.3809/jvirtex.2011.00270.Google Scholar
Burg, J-P, Ivanov, Z, Ricou, LE, Dimov, D and Klain, L (1990) Implications of shear-sense criteria for the tectonic evolution of the Central Rhodope massif, southern Bulgaria. Geology 18, 451–4.2.3.CO;2>CrossRefGoogle Scholar
Burg, J-P, Ricou, LE, Ivanov, Z, Godfriaux, I, Dimov, D and Klain, L (1996) Syn-metamorphic nappe complex in the Rhodope Massif: structure and kinematics. Terra Nova 8, 6–15.CrossRefGoogle Scholar
Cherneva, Z, Dimov, D, Stancheva, E and Daieva, L (1995) Subsolidus and anatectic veins in magmatic gneisses from the Vacha river valley. Review of the Bulgarian Geological Society 56, 91–109 (in Bulgarian with English abstract).Google Scholar
Collings, D, Savov, IP, Maneiro, K, Baxter, E, Harvey, J and Dimitrov, I (2016) Late Cretaceous UHP metamorphism recorded in kyanite-garnet schists from the Central Rhodope Mountains, Bulgaria. Lithos 246–247, 165–81.CrossRefGoogle Scholar
Conticelli, S (1998) Effects of crustal contamination on ultrapotassic magmas with lamproitic affinity: mineralogical, geochemical and isotope data from the Torre Alfina lavas and xenoliths, Central Italy. Chemical Geology 149, 51–81.CrossRefGoogle Scholar
Conticelli, S, Guarnieri, L, Farinelli, A, Mattei, M, Avanzinelli, R, Bianchini, G, Boari, E, Tommasini, S, Tiepolo, M, Prelević, D and Venturelli, G (2009) Trace elements and Sr–Nd–Pb isotopes of K-rich, shoshonitic, and calc-alkaline magmatism of the western Mediterranean region: genesis of ultrapotassic to calc-alkaline magmatic associations in a post-collisional geodynamic setting. Lithos 107, 68–92.CrossRefGoogle Scholar
Crummy, J, Savov, IP, Navarro-Ochoa, C, Morgan, D and Wilson, M (2014) High-K mafic Plinian eruptions of Volcán de Colima, México. Journal of Petrology 55, 1–18.CrossRefGoogle Scholar
Davidson, JP, Hora, JM, Garrison, JM and Dungan, MA (2005) Crustal forensics in arc magmas. Journal of Volcanology and Geothermal Research 140, 157–70.CrossRefGoogle Scholar
DeBari, SM and Coleman, RG (1989) Examination of the deep levels of an island arc: evidence from the Tonsina ultramafic–mafic assemblage, Tonsina, Alaska. Journal of Geophysical Research 94, 4373–91.CrossRefGoogle Scholar
Del Moro, A, Innocenti, F, Kyriakopoulos, C, Manetti, P and Papadopoulos, P (1988) Tertiary granitoids from Thrace (northern Greece): Sr isotopic and petrochemical data. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 159, 113–35.Google Scholar
DePaolo, DJ (1981) Trace element and isotopic effects of combined wall-rock assimilation and fractional crystallization. Earth and Planetary Science Letters 53, 189–202.CrossRefGoogle Scholar
DePaolo, DJ, Perry, FV and Baldridge, WS (1992) Crustal versus mantle sources of granitic magmas: a two-parameter model based on Nd isotopic studies. Transactions of the Royal Society of Edinburgh: Earth Sciences 83, 439–46.CrossRefGoogle Scholar
Di Battistini, G, Montanini, A, Vernia, L, Bargossi, DG and Gastotina, F (1999) Petrology and geochemistry of ultrapotassic rocks from the Montefiascone volcanic complex (Central Italy), magmatic evolution and petrogenesis. Lithos 43, 169–95.CrossRefGoogle Scholar
Dobosi, G (1989) Clinopyroxene zoning patterns in the young alkali basalts of Hungary and their petrogenetic significance. Contributions to Mineralogy and Petrology 101, 112–21.CrossRefGoogle Scholar
Dobosi, G and Fodor, RV (1992) Magma fractionation, replenishment, and mixing as inferred from green-core clinopyroxenes in Pliocene basanite, southern Slovakia. Lithos 28, 133–50.CrossRefGoogle Scholar
Duda, A and Schmincke, HU (1985) Polybaric differentiation of alkali basaltic magmas: evidence from green-core clinopyroxenes (Eifel, FRG). Contributions to Mineralogy and Petrology 91, 340–53.CrossRefGoogle Scholar
Fedele, L, Lustrino, M, Melllluso, L, Morra, M, Zanetti, A and Vannucci, R (2015) Trace-element partitioning between plagioclase, alkali feldspar, Ti-magnetite, biotite, apatite, and evolved potassic liquids from Campi Flegrei (Southern Italy). American Mineralogist 100, 233–49.CrossRefGoogle Scholar
Filipov, P, Marchev, P, Peytcheva, I, von Quadt, A and Georgiev, S (2017) Bratsigovo-Dospat volcanic area (Central Rhodopes, Bulgaria) – the link between East and West Rhodope magmatism in late Paleogene: constraints from Sr–Nd–Hf isotopic studies. In Magmatism of the Earth and Related Strategic Metal Deposits, Proceedings of the XXXIV International Conference. Miass, 4–9 August 2017 (eds Zaitsev, VA and Ermolaeva, VN), pp. 72–4. GEOKHI RAS.Google Scholar
Foley, S (1992) Vein-plus-wall-rock melting mechanisms in the lithosphere and the origin of potassic alkaline magmas. Lithos 28 435–53.CrossRefGoogle Scholar
Foley, SF, Venturelli, G, Green, DH and Toscani, L (1987) The ultrapotassic rocks: characteristics, classification, and constraints for petrogenetic models. Earth-Science Reviews 24, 81–134.CrossRefGoogle Scholar
Förster, MW, Prelević, D, Buhre, S, Mertz-Kraus, R and Foley, SF (2019) An experimental study of the role of partial melts of sediments versus mantle melts in the sources of potassic magmatism. Journal of Asian Earth Sciences 177, 76–88.CrossRefGoogle Scholar
Förster, MW, Prelević, D, Schmück, HR, Buhre, S, Marschall, HR, Mertz-Kraus, R and Jacob, DE (2018) Melting phlogopite-rich MARID: lamproites and the role of alkalis in olivine-liquid Ni-partitioning. Chemical Geology 476, 429–40.CrossRefGoogle Scholar
Froitzheim, N, Jahn-Awe, S, Frei, D, Wainwright, AN, Maas, R, Georgiev, N, Nagel, TJ and Pleuger, J (2014) Age and composition of meta-ophiolite from the Rhodope Middle Allochthon (Satovcha, Bulgaria): a test for the maximum-allochthony hypothesis of the Hellenides. Tectonics 32, 1477–500 doi: 10.1002/2014TC003526.CrossRefGoogle Scholar
Gallhofer, D, von Quadt, A, Peytcheva, I, Schmid, SM and Heinrich, CA (2015) Tectonic, magmatic, and metallogenic evolution of the Late Cretaceous arc in the Carpathian–Balkan orogeny. Tectonics 34, 1813–36. doi: 10.1002/2015TC003834.CrossRefGoogle Scholar
Gülmez, F, Genc, SC, Prelević, D, Tüysüz, O, Karacık, Z, Roden, MFZ and Billor, Z (2016) Ultrapotassic volcanism from the waning stage of the Neotethyan subduction: a key study from the Izmir-Ankara-Erzincan Suture Belt, Central Northern Turkey. Journal of Petrology 57, 561–93.CrossRefGoogle Scholar
Harkovska, A, Marchev, P, Machev, Ph and Pecskay, Z (1998) Paleogene magmatism in the Central Rhodope area, Bulgaria — a review and new data. Acta Vulcanologica 10, 199–216.Google Scholar
Harkovska, A and Velinov, I (2002) New data about genesis of the secondary quartzites from occurrence “Stomanovo”, Central Rhodopes. Mining and Geology 9, 27–34 (in Bulgarian).Google Scholar
Harkovska, A, Yanev, Y and Marchev, P (1989) General features of the Paleogene orogenic magmatism in Bulgaria. Geologica Balcanica 19, 37–72.Google Scholar
Hildreth, W and Moorbath, S (1988) Crustal contributions to arc magmatism in the Andes of central Chile. Contributions to Mineralogy and Petrology 98, 455–89.CrossRefGoogle Scholar
Himmerkus, F, Reischmann, T and Kostopoulos, D (2009) Serbo-Macedonian revisited: a Silurian basement terrane from Northern Gondwana in the Internal Hellenides, Greece. Tectonophysics 473, 20–35.CrossRefGoogle Scholar
Huang, XL, Niu, YL, Xu, YG, Chen, LL and Yang, QJ (2010) Mineralogical and geochemical constraints on the petrogenesis of post-collisional potassic and ultrapotassic rocks from western Yunnan, SW China. Journal of Petrology 51, 1617–54.CrossRefGoogle Scholar
Jan, MQ and Howie, RA (1981) The mineralogy and geochemistry of the metamorphosed basic and ultrabasic rocks of the Jijal complex, Kohistan, NW Pakistan. Journal of Petrology 22, 85–126.CrossRefGoogle Scholar
Janák, M, Froitzheim, N, Georgiev, N, Nagel, TJ and Sarov, S (2011) P–T evolution of kyanite eclogite from the Pirin Mountains (SW Bulgaria): implications for the Rhodope UHP Metamorphic Complex. Journal of Metamorphic Geology 29, 317–32.CrossRefGoogle Scholar
Jankovics, MÉ, Dobosi, G, Embey-Isztin, A, Kiss, B, Sági, T, Harangi, S and Ntaflos, T (2013) Origin and ascent history of unusually crystal-rich alkaline basaltic magmas from the western Pannonian Basin. Bulletin of Volcanology 75, 749. doi: 10.1007/s00445-013-0749-7.CrossRefGoogle Scholar
Jones, CE, Tarney, J, Baker, JH and Gerouki, F (1992) Tertiary granitoids of Rhodope, northern Greece: magmatism related to extensional collapse of the Hellenic Orogen? Tectonophysics 210, 295–314. doi: 10.1016/0040-1951(92)90327-3.CrossRefGoogle Scholar
Kackov, N (1987) Reconstruction des Paleovulkanismus im Bracigovo-Dospater Vilkanitmassiv (Bulgarien). Zeitschrift für Angewandte Geologie 33, 175–9.Google Scholar
Kamenov, B, Peytcheva, I, Klain, L, Arsova, K, Kostitsin, Y and Salnikova, E (1999) Rila-West Rhodopes Batholith: petrological and geochemical constraints for its composite character. Geochemistry, Mineralogy and Petrology 36, 3–27.Google Scholar
Katskov, N (1980) Structure of a part of the Bratsigovo-Dospat effusion. Geotectonics, Tectonophysics and Geodynamics 11, 3–24. Google Scholar
Kilias, A, Falalakis, G and Mountrakis, D (1999) Cretaceous–Tertiary structures and kinematics of the Serbomacedonian metamorphic rocks and their relation to the exhumation of the Hellenic hinterland (Macedonia, Greece). International Journal of Earth Sciences 88, 513–31.CrossRefGoogle Scholar
Kirchenbaur, M, Münker, C, Schuth, S, Garbe-Schönberg, D and Marchev, P (2012a) Tectonomagmatic constraints on the sources of Eastern Mediterranean K-rich lavas. Journal of Petrology 53, 27–65.CrossRefGoogle Scholar
Kirchenbaur, M, Pleuger, J, Jahn-Awe, S, Nagel, TJ, Froitzheim, N, Fonseca, ROC and Münker, K (2012b) Timing of high-pressure metamorphic events in the Bulgarian Rhodopes from Lu–Hf garnet geochronology. Contributions to Mineralogy and Petrology 163, 897–921.CrossRefGoogle Scholar
Koglin, N, Reischmann, T, Kostopoulos, D, Matukov, D and Sergeev, S (2007) Zircon SHRIMP ages and the origin of ophiolitic rocks from the NE Aegean region, Greece. Geophysical Research Abstracts 9, 06848.Google Scholar
Kolokotroni, CN and Dixon, JE (1991) The origin and emplacement of the Vrondou granite, Serres, NE Greece. Bulletin of the Geological Society of Greece 25, 469–83.Google Scholar
Koukouvelas, I and Doutsos, T (1990) Tectonic stages along a traverse cross cutting the Rhodopian zone (Greece). Geologische Rundschau 79, 753–76.CrossRefGoogle Scholar
Krenn, K, Bauer, C, Proyer, A, Klötzli, U and Hoinkes, G (2010) Tectonometamorphic evolution of the Rhodope orogen. Tectonics 29, TC4001. doi: 10.1029/2009TC002513.CrossRefGoogle Scholar
Krohe, A and Mposkos, E (2002) Multiple generations of extensional detachments in the Rhodope Mountains (northern Greece): evidence of episodic exhumation of high-pressure rocks. In The Timing and Location of Major Ore Deposits in an Evolving Orogen (eds Blundell, DJ, Neubauer, F and von Quadt, A), pp. 151–78. Geological Society of London, Special Publication no 204.Google Scholar
Liati, A, Gebauer, D and Fanning, CM (2011) Geochronology of the Alpine UHP Rhodope Zone: a review of isotopic ages and constraints on the geodynamic evolution. In Ultrahigh-Pressure Metamorphism: 25 Years after the Discovery of Coesite and Diamond (eds Dobrzhinetskaya, LF, Faryad, SW, Wallis, S and Cuthbert, S), pp. 295–324. Amsterdam: Elsevier.CrossRefGoogle Scholar
Macheva, L, Peytcheva, I, von Quadt, A, Zidarov, N and Tarassova, E (2006) Petrological, geochemical and isotope features of Lozen metagranite, Belasitza Mountain – evidence for widespread distribution of Ordovician metagranitoids in the Serbo-Macedonian Massif, SW Bulgaria. In Proceedings of the National Conference with International Participation, “Geosciences 2006”, Sofia, Bulgaria, 30 November – 1 December 2006, pp. 209–12. Bulgarian Geological Society Publishing House.Google Scholar
Marchev, P, Arai, S, Ishida, Y, Shirasaka, M and Downes, H (2008) Trace element and isotopic composition of mafic and ultramafic cumulate xenoliths in alkaline basalts from the Eastern Rhodopes, Bulgaria: inferences on deep processes under the metamorphic core complexes. IOP Conference Series: Earth and Environmental Science 2, 012015. doi: 10.1088/1755-1307/2/1/012015.CrossRefGoogle Scholar
Marchev, P, Arai, S and Vaselli, O (2006) Cumulate xenoliths series in the Krumovgrad alkaline basaltic and lamprophyric dykes: evidence for the existence of layered plutons under the Eastern Rhodope metamorphic core-complexes, Bulgaria. In Post-collisional Tectonics and Magmatism in the Eastern Mediterranean Region (eds Dilek, Y and Pavlides, S), pp. 237–58. Geological Society of America, Special Papers no. 409.Google Scholar
Marchev, P and Filipov, P (2012) First findings of Late Cretaceous magmatic rocks in the Pirin Mts. In Proceedings of the National Conference with International Participation, “Geosciences 2012”, Sofia, Bulgaria, 13–14 December 2012, pp. 55–6. Bulgarian Geological Society Publishing House.Google Scholar
Marchev, P, Georgiev, S, Raicheva, R, Peytcheva, I, von Quadt, A, Ovtcharova, M and Bonev, N (2013) Adakitic magmatism in postcollisional setting: an example from the early-middle Eocene magmatic belt in southern Bulgaria and northern Greece. Lithos 180–181, 159–80. doi: 10.1016/j.lithos.2013.08.024.CrossRefGoogle Scholar
Marchеv, P and Jelev, D (2010) Monzonites in the Stomanovo prospect: first finding of Paleogene intrusive rocks in the Bratsigovo–Dospat area. In Proceedings of the National Conference with International Participation, “Geosciences 2010”, Sofia, Bulgaria, 9–10 December 2010, pp. 41–2. Bulgarian Geological Society Publishing House.Google Scholar
Marchev, P, Kaiser-Rohrmeier, M, Heinrich, CA, Ovtcharova, M, von Quadt, A and Raicheva, R (2005) 2: Hydrothermal ore deposits related to post-orogenic extensional magmatism and core complex formation: the Rhodope massif of Bulgaria and Greece. Ore Geology Reviews 27, 53–89.CrossRefGoogle Scholar
Marchev, P, Raicheva, R, Downes, H, Vaselli, O, Chiaradia, M and Moritz, R (2004) Compositional diversity of Eocene–Oligocene basaltic magmatism in the Eastern Rhodopes, SE Bulgaria: implications for genesis and tectonic setting. Tectonophysics 393, 301–28.CrossRefGoogle Scholar
Marchev, P, Rogers, G, Conrey, R, Quick, J, Vaselli, O and Raicheva, R (1998) Paleogene orogenic and alkaline basic magmas in the Rhodope zone: relationships, nature of magma sources, and role of crustal contamination. Acta Vulcanologica 10, 217–32.Google Scholar
Mavroudchiev, B, Nedyalkov, R, Eleftheriadis, G, Soldatos, T and Christofides, G (1993) Tertiary plutonic rocks from east Rhodope in Bulgaria and Greece. Bulletin of the Geological Society of Greece 28, 643–60.Google Scholar
McLeod, CL, Davidson, JP, Nowell, GM and de Silva, SL (2012) Disequilibrium melting during crustal anatexis and implications for modeling open magmatic systems. Geology 40, 435–8.CrossRefGoogle Scholar
Middlemost, E (1994) Naming materials in the magma/igneous rock system. Earth-Science Reviews 37, 215–24.CrossRefGoogle Scholar
Miladinova, I, Froitzheim, N, Nagel, TJ, Janák, M, Georgiev, N, Fonseca, ROC, Sandmann, S and Münker, C (2018) Late Cretaceous eclogite in the Eastern Rhodopes (Bulgaria): evidence for subduction under the Sredna Gora magmatic arc. International Journal of Earth Sciences 107, 2083–99.CrossRefGoogle Scholar
Morimoto, N, Fabries, J, Ferguson, AK, Ginzburg, IV, Ross, M, Seifert, FA, Zussman, J, Aoki, K and Gottardi, G (1988) Nomenclature of pyroxenes. American Mineralogist 73, 1123–33.Google Scholar
Mposkos, E and Krohe, A (2006) Pressure–temperature-deformation paths of closely associated ultra-high-pressure (diamond-bearing) crustal and mantle rocks of the Kimi complex: implications for the tectonic history of the Rhodope Mountains, Northern Greece. Canadian Journal of Earth Sciences 43, 1755–76.CrossRefGoogle Scholar
Müntener, O, Kelemen, PB and Grove, TL (2001) The role of H2O during crystallization of primitive arc magmas under uppermost mantle conditions and genesis of igneous pyroxenites: an experimental study. Contributions to Mineralogy and Petrology 141, 643–58.CrossRefGoogle Scholar
Neumann, ER, Wulff-Pedersen, E, Simonsen, SL, Pearson, NJ, Martí, J and Mitjavila, J (1999) Evidence for fractional crystallization of periodically refilled magma chambers in Tenerife, Canary Islands. Journal of Petrology 40 1089–123.CrossRefGoogle Scholar
Ovtcharova, M, Cherneva, Z, von Quadt, A and Peytcheva, I (2002) Migmatitic geochronology and geochemistry; a key to understanding the exhumation of the Madan Dome (Bulgaria). In Abstracts of the 12th Annual V. M. Goldschmidt Conference. Geochimica et Cosmochimica Acta 66, 573.Google Scholar
Papanikolaou, D (2009) Timing of tectonic emplacement of the ophiolites and terrane paleogeography in the Hellenides. Lithos 108, 262–80.CrossRefGoogle Scholar
Peccerillo, A and Martinotti, G (2006) The Western Mediterranean lamproitic magmatism: origin and geodynamic significance. Terra Nova 18, 109–17.CrossRefGoogle Scholar
Peccerillo, A and Taylor, SR (1976) Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, northern Turkey. Contributions to Mineralogy and Petrology 58, 63–81.CrossRefGoogle Scholar
Peytcheva, I, Kostitsin, Y, Salnikova, E, Kamenov, B and Klain, L (1998) Rb–Sr and U–Pb isotope data for the Rila–Rhodopes batholith. Geochemistry, Mineralogy and Petrology 35, 93–105 (in Bulgarian with English abstract).Google Scholar
Peytcheva, I and von Quadt, A (1995) U–Pb zircon dating of metagranites of Byala-Reka region in the East Rhodopes, Bulgaria. In Proceedings of the XV Congress of the Carpatho-Balcan Geological Association, September 1995, Athens, Greece. Geological Society of Greece, Special Publication no. 4, pp. 637–42.Google Scholar
Peytcheva, I, von Quadt, A, Ovtcharova, M, Handler, R, Neubauer, F, Salnikova, E, Kostitsyn, Yu, Sarov, S and Kolcheva, K (2004) Metagranitoids from the eastern part of the Central Rhodopean Dome (Bulgaria): U–Pb, Rb–Sr and 40Ar/39Ar timing of emplacement and exhumation and isotope-geochemical features. Mineralogy and Petrology 82, 1–31.CrossRefGoogle Scholar
Peytcheva, I, von Quadt, A, Sarov, S, Voinova, E and Kolcheva, K (2009) Ordovician protoliths of metamorphic rocks in Eastern Pirin–Western Rhodopes: are they part of the Ograzhden Unit? In Proceedings of the National Conference with International Participation, “Geosciences 2009”, Sofia, Bulgaria, 3–4 December 2009, pp. 17–18. Bulgarian Geological Society Publishing House.Google Scholar
Prelević, D, Akal, C, Foley, SF, Romer, R, Stracke, A and van den Bogaard, P (2012) Ultrapotassic mafic rocks as geochemical proxies for post-collisional dynamics of orogenic lithospheric mantle: the case of southwestern Anatolia, Turkey. Journal of Petrology 53, 1019–55.CrossRefGoogle Scholar
Prelević, D, Akal, C, Romer, RL, Mertz-Kraus, R and Helvaci, C (2015) Magmatic response to slab tearing: constraints from the Afyon Alkaline Volcanic Complex, Western Turkey. Journal of Petrology 56, 527–62.CrossRefGoogle Scholar
Prelević, D and Foley, SF (2007) Accretion of arc-oceanic lithospheric mantle in the Mediterranean: evidence from extremely high-Mg olivines and Cr-rich spinel inclusions in lamproites. Earth and Planetary Science Letters 256, 120–35.CrossRefGoogle Scholar
Prelević, D, Foley, SF, Romer, R and Conticelli, S (2008) Mediterranean Tertiary lamproites derived from multiple source components in postcollisional geodynamics. Geochimica et Cosmochimica Acta 72, 2125–56.CrossRefGoogle Scholar
Putirka, K (2008) Thermometers and barometers for volcanic systems. Reviews in Mineralogy and Geochemistry 69, 61–120.CrossRefGoogle Scholar
Reiners, PW, Nelson, BK and Ghiorso, MS (1995) Assimilation of felsic crust by basaltic magma: thermal limits and extents of crustal contamination of mantle-derived magmas. Geology 23, 563–6.2.3.CO;2>CrossRefGoogle Scholar
Rohrmeier, MK, von Quadt, A, Dreisner, T, Heinrich, CA, Handler, R, Ovtcharova, M, Ivanov, Z, Petrov, P, Sarov, St and Peytcheva, I (2013) Post-orogenic extension and hydrothermal ore formation: high-precision geochronology of the Central Rhodopian metamorphic core complex (Bulgaria-Greece). Economic Geology 108, 691–718.CrossRefGoogle Scholar
Rudnick, RL and Gao, S (2003) Composition of the continental crust. In The Crust (ed. Rudnick, RL), pp. 1–64. Treatise on Geochemistry, no. 3. Oxford: Elsevier-Pergamon.Google Scholar
Sarov, S, Naydenov, K, Zhelezarski, T, Marinova, R, Georgieva, I, Ivanova, D, Popov, A and Markov, N (2009) Geological Map of the Republic of Bulgaria in Scale 1:50 000, K-35-73-G (Devin) Map Sheet. Sofia: Ministry of Environment and Waters, Bulgarian National Geological Survey.Google Scholar
Shaw, CSJ and Eyzaguirre, J (2000) Origin of megacrysts in the mafic alkaline lavas of the West Eifel volcanic field, Germany. Lithos 50, 75–95.CrossRefGoogle Scholar
Sokol, K, Halama, R, Meliksetian, K, Savov, IP and Sudo, M (2018) Alkaline magmas in zones of continental convergence: the Tezhsar volcano-intrusive ring complex, Armenia. Lithos 321, 172–91.CrossRefGoogle Scholar
Soldatos, T, Koroneos, A, Kamenov, B, Peytcheva, I, von Quadt, A, Christofides, G, Zheng, X and Sang, H (2008) New U–Pb and Ar–Ar mineral ages for the Barutin–Buynovo–Elatia–Skaloti–Paranesti batholith (Bulgaria and Greece): refinement of its debatable age. Geochemistry, Mineralogy and Petrology 46, 85–102.Google Scholar
Sun, S-S and McDonough, WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In Magmatism in the Ocean Basins (eds Saunders, AD and Norry, MJ), pp. 313–45. Geological Society of London, Special Publication no 42.Google Scholar
Tomanikova, L, Savov, IP, Harvey, J, DeHoog, C-J, Churikova, T, Gordeichyk, B and Yogodzinsky, G (2019) Boron and B isotope systematics of metasomatised mantle xenoliths from the Kamchatka arc. Geology 47, 517–21.CrossRefGoogle Scholar
Turpaud, P and Reischmann, T (2010) Characterisation of igneous terranes by zircon dating: implications for UHP occurrences and suture identification in the Central Rhodope, northern Greece. International Journal of Earth Sciences 99, 567–91. doi: 10.1007/s00531-008-0409-x.CrossRefGoogle Scholar
Varekamp, JC and Kalamarides, RI (1989) Hybridization processes in leucite tephrite from Vulsini, Italy, and the evolution of the Italian potassic suite. Journal of Geophysical Research 94, 4603–18.CrossRefGoogle Scholar
Velinov, I, Kunov, A and Velinova, N (2007) The Metasomatic Secondary Quartzite Formation in Bulgaria. Sofia: Prof. Marin Drinov Academic Publishing House, 198 pp.Google Scholar
von Quadt, A and Peytcheva, I (2005) The southern extension of the Srednogorie type Upper Cretaceous magmatism in Rila–Western Rhodopes: constraints from isotope geochronological and geochemical data. In Proceedings of the Jubilee International Conference, Bulgarian Geological Society 80th Anniversary, Sofia, Bulgaria, 17–18 November 2005 (eds Yanev, Y and Nedialkov, R), pp. 113–16. Bulgarian Geological Society Publishing House.Google Scholar
von Quadt, A, Peytcheva, I, Sarov, S and Naydenov, K (2008) Metamorphic rocks from Dospat area of western Rhodopes – conventional and in situ U–Pb zircon dating, isotope tracing and correlations. In Proceedings of the National Conference with International Participation, “Geosciences 2008”, Sofia, Bulgaria, 11–12 December 2008, pp. 33–4. Bulgarian Geological Society Publishing House.Google Scholar
Wang, Y, Foley, SF and Prelević, D (2017) Potassium-rich magmatism from a phlogopite-free source. Geology 45, 467–70.CrossRefGoogle Scholar
Wass, SY (1979) Multiple origins of clinopyroxenes in alkali basaltic rocks Lithos 12, 115–32.CrossRefGoogle Scholar
Wortel, MJR and Spakman, W (2000) Subduction and slab detachment in the Mediterranean-Carpathian region. Science 290, 1910–1 7.CrossRefGoogle ScholarPubMed
Xu, YG, Huang, XL, Menzies, MA and Wang, RC (2003) Highly magnesian olivines and green-core clinopyroxenes in ultrapotassic lavas from western Yunnan, China: evidence for a complex hybrid origin. European Journal of Mineralogy 15, 965–75.CrossRefGoogle Scholar
Yanev, Y (2003) Mantle source of the Paleogene collision-related magmas of the Eastern Rhodopes (Bulgaria) and Western Thrace (Greece): characteristics of the mafic magmatic rocks. Neues Jahrbuch für Mineralogie Abhandlungen 178, 131–51.CrossRefGoogle Scholar
Yanev, Y, Innocenti, F, Manetti, P and Serri, G (1998) Upper Eocene–Oligocene collision-related volcanism in eastern Rhodopes (Bulgaria)–Western Thrace (Greece): petrogenetic affinity and geodynamic significance. Acta Vulcanologica 10, 265–77.Google Scholar
Yanev, Y and Ivanova, R (2009) Paleogene ultrapotassic volcanic rocks of the Eastern Rhodopes, South Bulgaria: petrology, mineralogy and origin. Acta Vulcanologica 20–21, 99–122.Google Scholar
Zagorchev, I, Balica, C, Kozhoukharova, E and Balintoni, IC (2017) Pirin metamorphic and igneous evolution revisited in a geochronological frame based on U–Pb zircon studies. Geologica Balcanica 46, 27–63.Google Scholar
Zhang, L, Guo, Z, Zhang, M, Cheng, Z and Sun, Y (2017) Post-collisional potassic magmatism in the eastern Lhasa terrane, South Tibet: products of partial melting of mélanges in a continental subduction channel. Gondwana Research 41, 9–28.CrossRefGoogle Scholar
Zhu, Y and Ogasawara, Y (2004) Clinopyroxene phenocrysts (with green salite cores) in trachybasalts: implications for two magma chambers under the Kokchetav UHP massif, North Kazakhstan. Journal of Asian Earth Sciences 22, 517–27.CrossRefGoogle Scholar
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