Geochemical and mantle-like isotopic (Nd, Sr) composition of the Baklan Granite from the Muratdagi Region (Banaz, Usak), western Turkey

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dc.contributor.authorAydogan, M. Selman
dc.contributor.authorCoban, Hakan
dc.contributor.authorBozcu, Mustafa
dc.contributor.authorAkinci, Oemer
dc.date.accessioned2025-01-27T20:50:26Z
dc.date.available2025-01-27T20:50:26Z
dc.date.issued2008
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe (late syn)-post-collisional magmatic activities of western and northwestern Anatolia are characterized by intrusion of a great number of granitoids. Amongst them, Baklan Granite, located in the southern part of the Muratdagi Region from the Menderes Massif (Banaz, Usak), has peculiar chemical and isotopic characteristics. The Baklan rocks are made up by K-feldspar, plagioclase, quartz, biotite and hornblende, with accessory apatite, titanite and magnetite, and include mafic microgranular enclaves (MME). Chemically, the Baklan intrusion is of sub-alkaline character, belongs to the high-K, calc-alkaline series and displays features of I-type affinity. It is typically metaluminous to mildly peraluminous, and classified predominantly as granodiorite in composition. The spider and REE patterns show that the rocks are fractionated and have small negative Eu anomalies (Eu/Eu* = 0.62-0.86), with the depiction of Nb, Ti, P and, to a lesser extent, Ba and Sr. The pluton was dated by the K-Ar method on the whole-rock, yielded ages between 17.8 +/- 0.7 and 19.4 +/- 0.9 Ma (Early Miocene). The intrusion possesses primitive low initial Sr-87/Sr-16 ratios (0.70331-0.70452) and negative epsilon(Nd(t)) values (-5.0 to -5.6). The chemical contrast between evolved Baklan rocks (SiO2, 62-71 wt.%; Cr, 7-27 ppm; Ni, 5-11 ppm; Mg#, 45-51) and more primitive clinopyroxene-bearing monzonitic enclaves (SiO2, 54-59 wt.%; Cr, 20-310 ppm; Ni, 10-70 ppm; Mg#, 50-61) signifies that there is no co-genetic link between host granite and enclaves. The chemical and isotopic characteristics of the Baklan intrusion argue for an important role of a juvenile component, such as underplated mantle-derived basalt, in the generation of the granitoids. Crustal contamination has not contributed significantly to their origin. However, with respect to those of the Baklan intrusion, the generation of the (late syn)- post-collisional intrusions with higher Nd(t) values from the western Anatolia require a much higher amount of juvenil component in their source domains. (c) 2007 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.jseaes.2006.10.007
dc.identifier.endpage176
dc.identifier.issn1367-9120
dc.identifier.issn1878-5786
dc.identifier.issue3-4
dc.identifier.scopus2-s2.0-44149099268
dc.identifier.scopusqualityQ1
dc.identifier.startpage155
dc.identifier.urihttps://doi.org/10.1016/j.jseaes.2006.10.007
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25494
dc.identifier.volume33
dc.identifier.wosWOS:000257038700002
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofJournal of Asian Earth Sciences
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectBaklan Granite
dc.subjectI-type
dc.subjectmantle input
dc.subjectjuvenile crust
dc.subjectMuratdagi Region
dc.subjectUsak
dc.subjectwestern Anatolia
dc.titleGeochemical and mantle-like isotopic (Nd, Sr) composition of the Baklan Granite from the Muratdagi Region (Banaz, Usak), western Turkey
dc.typeReview Article

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