K-Ar age determination, whole-rock and oxygen isotope geochemistry of the post-collisional Bizmisen and Calti plutons, SW Erzincan, eastern Central Anatolia, Turkey

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dc.authoridARSLAN, Mehmet/0000-0003-0816-4168
dc.authorwosidKürüm, Sevcan/W-4816-2018
dc.authorwosidARSLAN, Mehmet/S-1208-2017
dc.contributor.authorÖnal, A
dc.contributor.authorBoztug, D
dc.contributor.authorKürüm, S
dc.contributor.authorHarlavan, Y
dc.contributor.authorArehart, GB
dc.contributor.authorArslan, M
dc.date.accessioned2024-08-04T20:15:02Z
dc.date.available2024-08-04T20:15:02Z
dc.date.issued2005
dc.departmentİnönü Üniversitesien_US
dc.description.abstractPost-collisional granitoid plutons intrude obducted Neo-Tethyan ophiolitic rocks in central and eastern Central Anatolia. The Bizmisen and Calti plutons and the ophiolitic rocks that they intrude are overlain by fossiliferous and flyschoidal sedimentary rocks of the early Miocene Kemah Formation. These sedimentary rocks were deposited in basins that developed at the same time as tectonic unroofing of the plutons along E-W and NW-SE trending faults in Oligo-Miocene time. Mineral separates from the Bizmisen and Calti plutons yield K-Ar ages ranging from 42 to 46 Ma, and from 40 to 49 Ma, respectively. Major, trace, and rare-earth element geochemistry as well as mineralogical and textural evidence reveals that the Bizmisen pluton crystallized first, followed at shallower depth by the Calti pluton from a medium-K calcalkaline, I-type hybrid magma which was generated by magma xing of coeval mafic and felsic magmas. Delta O-18 values of both plutons fall in the field of I-type granitoids, although those of the Calti pluton are consistently higher than those of the Bizmisen pluton. This is in agreement with field observations, petrographic and whole-rock geochemical data, which indicate that the Bizmisen pluton represents relatively uncontaminated mantle material, whereas the Calti pluton has a significant crustal component. Structural data indicating the middle Eocene emplacement age and intrusion into already obducted ophiolitic rocks, suggest a post-collisional extensional origin. However, the pure geochemical discrimination diagrams indicate an arc origin which can be inherited either from the source material or from an upper mantle material modified by an early subduction process during the evolution of the Neo-Tethyan ocean. Copyright (c) 2005 John Wiley & Sons, Ltd.en_US
dc.identifier.doi10.1002/gj.1023
dc.identifier.endpage476en_US
dc.identifier.issn0072-1050
dc.identifier.issn1099-1034
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-25644434312en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage457en_US
dc.identifier.urihttps://doi.org/10.1002/gj.1023
dc.identifier.urihttps://hdl.handle.net/11616/94115
dc.identifier.volume40en_US
dc.identifier.wosWOS:000232210900004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofGeological Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectK-Ar datingen_US
dc.subjectwhole-rock geochemistryen_US
dc.subjectoxygen isotope geochemistryen_US
dc.subjectgeodynamicsen_US
dc.subjectBizmisen and Calti plutonsen_US
dc.subjectErzincanen_US
dc.subjectTurkeyen_US
dc.titleK-Ar age determination, whole-rock and oxygen isotope geochemistry of the post-collisional Bizmisen and Calti plutons, SW Erzincan, eastern Central Anatolia, Turkeyen_US
dc.typeArticleen_US

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