Petrogenesis of Miocene volcanism in the Central Anatolia: Geochemical, isotopic and geochronological evidence

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dc.authoridOzdamar, Senel/0000-0002-4706-8585
dc.contributor.authorOzdamar, Senel
dc.contributor.authorBillor, Mehmet Z.
dc.contributor.authorSarikaya, Oral
dc.contributor.authorSans, Bala Ekinci
dc.contributor.authorYildiz, Taskin Deniz
dc.contributor.authorEsenli, Fahri
dc.contributor.authorZou, Haibo
dc.date.accessioned2025-01-06T17:36:24Z
dc.date.available2025-01-06T17:36:24Z
dc.date.issued2024
dc.description.abstractThis paper presents the first 40 Ar/ 39 Ar age data, new bulk -rock major -trace element compositions and Nd - Sr isotope geochemistry, combined with detailed geological mapping of Galatia Volcanic Province (GVP) in the northwest Central Anatolia (Turkey). Here, there are voluminous extrusive rocks in a wide compositional range: a basalt, andesite and trachyte suite, and their pyroclastic equivalents. 40 Ar/ 39 Ar dating of two whole-rock samples from the GVP yielded plateau ages of 21.76 +/- 0.8 Ma and 20.97 +/- 0.5 Ma, constrain the volcanic activity at ca. 21 Ma (Aquitanian). The samples show by sub-parallel light rare earth element (LREE)-enrichment and relatively flat heavy rare earth element (HREE) patterns and moderate fractionation [average (La/Yb) N = 13.5]. Their initial 87/86 Sr values vary between 0.704619 and 0.704998, while initial 143/144 Nd values lie between 0.512673 and 0.512755. Integration of the geochemical and geochronological with geological data we propose that the volcanic rocks in the northern area of GVP with calc-alkaline affinity were produced by a lithospheric mantle magma in an extensional setting.
dc.description.sponsorshipIstanbul Technical Uni- versity (ITU-BAP)
dc.description.sponsorshipThe first author received financial support Istanbul Technical Uni- versity (ITU-BAP) . The authors are grateful to editor and two anony- mous reviewers for excellent suggestions and critical comments, which improved the scientific content.
dc.identifier.doi10.1016/j.jvolgeores.2024.108086
dc.identifier.issn0377-0273
dc.identifier.issn1872-6097
dc.identifier.scopus2-s2.0-85191433748
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jvolgeores.2024.108086
dc.identifier.urihttps://hdl.handle.net/20.500.14669/1865
dc.identifier.volume450
dc.identifier.wosWOS:001230834400001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Volcanology and Geothermal Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectAr/Ar dating
dc.subjectCentral Anatolia
dc.subjectGalatia Volcanic Province
dc.subjectMiocene
dc.subjectSr-Nd
dc.titlePetrogenesis of Miocene volcanism in the Central Anatolia: Geochemical, isotopic and geochronological evidence
dc.typeArticle

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