First Evidence of Lamprophyric Magmatism from the Konya Region, Turkey: a Genetic Link to High-K Volcanism

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dc.contributor.authorAsan, Kursad
dc.contributor.authorErturk, M. Ali
dc.date.accessioned2020-03-26T18:41:59Z
dc.date.available2020-03-26T18:41:59Z
dc.date.issued2013
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the vicinity of Konya (Turkey), mafic, micro-porphyritic sub-volcanic rocks intrude into the Mesozoic units, which represents the only example of such a rock type in the region. Ar-40/Ar-39 dating of two whole rock samples from the sub-volcanics gave ages of 13.72 +/- 0.13 and 12.40 +/- 0.11 Ma, suggesting temporal association to the Late Miocene-Pliocene high-K calc-alkaline volcanism in the region. The mineral chemistry and geochemical data permit us to classify the rocks as minette lamprophyres. They include diopside and phlogopite phenocrysts in a microcrystalline groundmass composed of sanidine, phlogopite, diopside and titano-magnetite. Segregation and ocelli-like globular structures occur commonly in the samples. In terms of major elements, the lamprophyres are calcalkaline, and potassic to ultrapotassic rocks. All the lamprophyres display strong enrichments in LILE (Rb, Ba, K, Sr), radiogenic elements (Th, U) and LREE (La, Ce) and prominent negative Nb, Ta, and Ti anomalies on primordial mantle-normalized trace element diagrams. Geochemical data suggest that the lamprophyres and high-K calc-alkaline rocks in the region derived from a subduction-modified lithospheric mantle source affected by different metasomatic events. Lamprophyric magmatism sourced phlogopite-bearing veins generated by sediment-related metasomatism via subduction, but high-K calc-alkaline magmas are possibly derived from a mantle source affected by fluid-rich metasomatism.en_US
dc.description.sponsorshipSelcuk University Scientific Research Projects CoordinationSelcuk University [11201041]; Selcuk UniversitySelcuk Universityen_US
dc.description.sponsorshipThis study was financially supported by the Selcuk University Scientific Research Projects Coordination (Project No: 11201041). The authors gratefully thank the Selcuk University for its support. The authors thank Prof. Dr. Yasar Eren and Prof. Dr. Huseyin Kurt for their helpful comments on an earlier version of the manuscript. We also thank Dr. Lang Shi for microprobe analysis (McGill University, Canada) and Dr. Ganerod Morgan for <SUP>40</SUP>Ar/<SUP>39</SUP>Ar age analysis (Geological Survey of Norway). Kursad Asan also thanks the people in the "Terrestrial Magmatism" research group of the Department of Earth and Planetary Sciences, McGill University (Prof. Dr. Don Francis, Michael Patterson, Dejan Milidragovic, Yumi Kitayama and Melissa Maisonneuve) for their kindness during his sabbatical studies.en_US
dc.identifier.doi10.1111/1755-6724.12163en_US
dc.identifier.endpage1629en_US
dc.identifier.issn1000-9515en_US
dc.identifier.issn1755-6724en_US
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1617en_US
dc.identifier.urihttps://dx.doi.org/10.1111/1755-6724.12163
dc.identifier.urihttps://hdl.handle.net/20.500.12395/29522
dc.identifier.volume87en_US
dc.identifier.wosWOS:000328541900013en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.relation.ispartofACTA GEOLOGICA SINICA-ENGLISH EDITIONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectTurkeyen_US
dc.subjectKonyaen_US
dc.subjectcalc-alkalineen_US
dc.subjectlamprophyreen_US
dc.subjectminetteen_US
dc.subjectmetasomatismen_US
dc.titleFirst Evidence of Lamprophyric Magmatism from the Konya Region, Turkey: a Genetic Link to High-K Volcanismen_US
dc.typeArticleen_US

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