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dc.contributor.authorUner, Tijen
dc.contributor.authorCakir, Uner
dc.contributor.authorOzdemir, Yavuz
dc.contributor.authorArat, Irem
dc.date.accessioned2019-12-13T10:57:52Z
dc.date.available2019-12-13T10:57:52Z
dc.date.issued2014
dc.identifier.issn1335-0552
dc.identifier.urihttps://doi.org/10.2478/geoca-2014-0013
dc.identifier.urihttp://hdl.handle.net/11655/18922
dc.description.abstractThe Eldivan Ophiolite, exposed around Ankara and Cankiri cities, is located at the central part of the Izmir-Ankara-Erzincan Suture Zone (IAESZ). It represents fragments of the Neotethyan Oceanic Lithosphere emplaced towards the south over the Gondwanian continent during the Albian time. It forms nearly complete series by including tectonites (harzburgites and rare dunites), cumulates (dunites, wherlites, pyroxenites, gabbro and plagiogranites) and sheeted dykes from bottom to top. Imbricated slices of volcanic-sedimentary series and discontinuous tectonic slices of ophiolitic metamorphic rocks are located at the base of tectonites. Plagiogranitic rocks of the Eldivan Ophiolite are mainly exposed at upper levels of cumulates. They are in the form of conformable layers within layered diorites and also dikes with variable thicknesses. Plagiogranites have granular texture and are mainly composed of quartz and plagioclases. The occurrences of chlorite and epidote revealed that these rocks underwent a low grade metamorphism. Eldivan plagiogranites have high SiO2 content (70-75 %) and low K2O content (0.5-1 %) and display flat patterns of REE with variable negative Eu anomalies. LREE/HREE ratio of these rocks varies between 0.2-0.99. All members of the Eldivan rocks have high LILE/HFSE ratios with depletion of Nb, Ti and P similar to subduction related tectonic settings. Geochemical modelling indicates that the Eldivan plagiogranites could have been generated by 50-90 % fractional crystallization and/or 5-25 % partial melting of a hydrous basaltic magma.
dc.language.isoen
dc.publisherSlovak Acad Sciences Geological Inst
dc.relation.isversionof10.2478/geoca-2014-0013
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectGeology
dc.titleGeochemistry And Origin Of Plagiogranites From The Eldivan Ophiolite, Cankiri (Central Anatolia, Turkey)
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.relation.journalGeologica Carpathica
dc.contributor.departmentJeoloji Mühendisliği
dc.identifier.volume65
dc.identifier.issue3
dc.identifier.startpage195
dc.identifier.endpage205
dc.description.indexWoS
dc.description.indexScopus


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