Composition, pressure, and temperature of the mantle source region of quaternary nepheline-basanitic lavas in Bitlis Massif, Eastern Anatolia, Turkey: A consequence of melts from Arabian lithospheric mantle

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dc.authorid0000-0003-1694-0024en_US
dc.authorscopusid57205600355en_US
dc.authorwosidA-5460-2018en_US
dc.contributor.authorMercan, Çağrı
dc.contributor.authorÖzdemir, Yavuz
dc.contributor.authorOyan, Vural
dc.contributor.authorAtakul Özdemir, Ayşe
dc.date.accessioned2023-11-25T08:30:10Z
dc.date.available2023-11-25T08:30:10Z
dc.date.issued2019en_US
dc.departmentMAÜ, Meslek Yüksekokulları, Savur Meslek Yüksekokulu, Harita ve Kadastro Bölümüen_US
dc.description.abstractThe Quaternary (0.66–0.63 Ma) nepheline basanites (ne - basanite) are the firstly observed volcanic products of Arabia-Eurasia collision on Bitlis Pötürge Massif. They composed of clinopyroxene, olivine, Ti-magnetite, Cr spinel, and nepheline. The forsterite compositions of olivines range between 73 and 83%, calcic clinopyroxenes show modest variations in Wo48–57-En37–45-Fs5–7 and nephelines occur as minor minerals within the networks of other groundmass minerals. They are characterized by low SiO2 (40.16–41.96 wt%), high MgO contents (8.54–9.73 wt%) and similar Srsingle bondNd isotopic compositions with Arabian Plate volcanics. Mineral and whole rock thermobarometry yield crystallization pressure and a temperature range between 8 and 20 kbar and 1301 °C – 1035 °C respectively. Lavas have high Mg-number (>0.58), high Cr and Ni contents and strong LREE enrichment but depletion in Rb, K, and Pb. Trace elements together with Sr isotopic compositions inferred negligible assimilation of the local upper crustal material. The calculated average pressure and temperature of mantle melting for ne-basanites is 2,85 kbar and 1353 °C respectively. FC3MS (wt% FeO/CaO-3*MgO/SiO2) parameter and melting models using REE data reveal Çatak basanites are products of amphibole and phlogopite bearing metasomatised lithospheric mantle in garnet stability field. They seem to originated from depths of ~ 85 km which corresponds to the base of the Arabian lithosphere in the region.en_US
dc.identifier.citationÖzdemir, Y., Mercan, Ç., Oyan, V., & Özdemir, A. A. (2019). Composition, pressure, and temperature of the mantle source region of quaternary nepheline-basanitic lavas in Bitlis Massif, Eastern Anatolia, Turkey: A consequence of melts from Arabian lithospheric mantle. Lithos, 328, 115-129. https://doi.org/10.1016/j.lithos.2019.01.020en_US
dc.identifier.doi10.1016/j.lithos.2019.01.020en_US
dc.identifier.endpage129en_US
dc.identifier.scopus2-s2.0-85060677696en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage115en_US
dc.identifier.urihttps://doi.org/10.1016/j.lithos.2019.01.020
dc.identifier.urihttps://hdl.handle.net/20.500.12514/4314
dc.identifier.volume328-329en_US
dc.identifier.wosWOS:000463308800009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorMercan, Çağrı
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofLithosen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.relation.tubitakProject No. 113Y406
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectEastern Anatoliaen_US
dc.subjectArabian Lithosphereen_US
dc.subjectNe-basaniteen_US
dc.subjectMineral chemistryen_US
dc.subjectPetrologyen_US
dc.titleComposition, pressure, and temperature of the mantle source region of quaternary nepheline-basanitic lavas in Bitlis Massif, Eastern Anatolia, Turkey: A consequence of melts from Arabian lithospheric mantleen_US
dc.typeArticleen_US

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