Petrography, mineral chemıstry and crystallizatıon conditions of cenozoic plutonic rocks located to the north of Bayburt (Eastern Pontıdes, Turkey)

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dc.contributor.authorKaygusuz, Abdullah
dc.contributor.authorYücel, Cem
dc.contributor.authorArslan, Mehmet
dc.contributor.authorSipahi, Ferkan
dc.contributor.authorTemizel, İrfan
dc.contributor.authorÇakmak, Gökhan
dc.contributor.authorGüloğlu, Z. Samet
dc.date.accessioned2026-02-28T12:25:14Z
dc.date.available2026-02-28T12:25:14Z
dc.date.issued2018
dc.departmentBayburt Üniversitesi
dc.description.abstractThe Eastern Pontides comprises of many intrusive bodies varying in composition, size and age from Paleozoic to Cenozoic. Those of especially Cenozoic aged ones are commonly observed in the southern part while are rarely exposed in the northern part of the Eastern Pontides. In this study, the petrographical and mineral chemistry properties of Çiçekli, Somarova, Sorkunlu, Şaşurluk, Aydıntepe, Kemerlikdağı and Pelitli plutons located to the north of Bayburt area are determined, and the crystallization conditions of the studied bodies were estimated by means of thermobarometer calculations. The studied plutons extend mostly NE-SW directions and are approximately ellipse in shapes. The contacts between the plutons and surrounding rocks are sharp, and plutons commonly contain mafic microgranular enclaves (MMEs) of different size. Petrographic and mineral chemistry studies reveal some disequilibrium textures reflecting magma mixing process. Based on modal mineralogy, the plutonic rocks are gabbroic diorite, diorite, tonalite, granodiorite and monzogranite in composition. The rocks have fine to medium granular, porphyric, monzonitic, poikilitic, myrmekitic and micrographic textures. The main minerals are composed of labradorite and albite (An68-02), magnesiohornblende and actinolite (Mg# = 0.6-0.9), diopside and augite (Wo44-46), clinoenstatite (En53-57) and Fe-Ti oxide minerals. Crystallization temperatures calculated from amphibole, biotite, clinopyroxene, magnetite and ilmenite minerals are 405 °C to 1161 °C, pressure values are 0.1 to 2.7 kbar, oxygen fugacity (log10 ƒO2) are -20 to -12. Estimation of water content calculated by using amphiboles is between 2.9 and 6.8%. Based on obtained data, it is suggested that the studied plutons have emplaced in shallow depths (~ 1-8 km).
dc.identifier.doi10.19111/bulletinofmre.427829
dc.identifier.endpage102
dc.identifier.issn0026-4563
dc.identifier.issue157
dc.identifier.startpage75
dc.identifier.urihttps://doi.org/10.19111/bulletinofmre.427829
dc.identifier.urihttps://hdl.handle.net/20.500.12403/6299
dc.identifier.volume157
dc.language.isoen
dc.publisherMaden Tetkik ve Arama Genel Müdürlüğü
dc.relation.ispartofMaden Tetkik ve Arama Dergisi
dc.relation.ispartofBulletin of the Mineral Research and Exploration
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_DergiPark_20260218
dc.subjectEngineering
dc.subjectMühendislik
dc.titlePetrography, mineral chemıstry and crystallizatıon conditions of cenozoic plutonic rocks located to the north of Bayburt (Eastern Pontıdes, Turkey)
dc.typeArticle

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