Interaction of the lithospheric mantle and crustal melts for the generation of the Horoz pluton (Nigde, Turkey): whole-rock geochemical and Sr-Nd-Pb isotopic evidence

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dc.contributor.authorKocak, Kerim
dc.contributor.authorZedef, Veysel
dc.date.accessioned2020-03-26T19:24:45Z
dc.date.available2020-03-26T19:24:45Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe Horoz pluton includes granitic and granodioritic rocks, with widespread mafic microgranular enclaves (MMEs). Petrochemically, the rocks of the pluton show calc-alkaline to shoshonitic and metaluminous to slightly peraluminous composition. The rocks also exhibit an enrichment in large ion lithophile elements, e.g. Rb, K, and depletions of high field strength elements such as Y, Lu, and Mg#, Ni, with a slightly concave-upward rare earth element pattern. Both granitic and granodioritic rocks exhibit geochemical characteristics of tonalite, trondhjemite and granodiorite assemblages, possibly developed by the partial melting of a thickened lower crust. The granitoids have high concentrations of Na2O (2.6-4.5 wt%), Sr (347-599 ppm), intermediate-high (La/Yb)(N) (8.2-18.1, mostly >11), Al2O3 (13.2-16.9 wt%, average 15.3 wt%), low MgO (0.2-1.4 wt%, average 0.84 wt%) and Co (0.7-10.3 ppm). The MMEs include higher Na2O (4.5-5.5 wt%), Sr (389-1149 ppm), Al2O3 (16.9-19.2 wt%, average 17.8 wt%), MgO (1.4-4.4 wt%, average 2.75 wt%) and Co (6.2-18.7 ppm) contents in comparison with that of their hosts. There is a lack of negative Eu anomalies, except a few samples. Both host rocks and MMEs have a low initial Sr-87/Sr-86 ratio (respectively 0.7046-0.7051 and 0.7047-0.7058), low epsilon(Nd) value (-1.8 to -0.2 and -0.6 to 0.7 at 50 Ma) and highly radiogenic Pb-208/Pb-204 ratios (39.43-39.47 and 39.39-39.54). Whole-rock chemistry and isotopic data suggest that parent magmas of both MMEs and their hosts have derived from melts of the mixing between the lithospheric mantle and crustal end members, than fractional crystallization processes in crustal levels.en_US
dc.description.sponsorshipOffice of Scientific Research (BAP; Selcuk University, Turkey) [5401041]en_US
dc.description.sponsorshipThis work was financially supported by the Office of Scientific Research (BAP; Project No. 5401041, Selcuk University, Turkey). The authors are grateful to Mehmet Arslan and Alvar Soesoo for their helpful comments and suggestions on the manuscript.en_US
dc.identifier.doi10.3176/earth.2016.14en_US
dc.identifier.endpage160en_US
dc.identifier.issn1736-4728en_US
dc.identifier.issn1736-7557en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage138en_US
dc.identifier.urihttps://dx.doi.org/10.3176/earth.2016.14
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33717
dc.identifier.volume65en_US
dc.identifier.wosWOS:000383310800002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherESTONIAN ACADEMY PUBLISHERSen_US
dc.relation.ispartofESTONIAN JOURNAL OF EARTH SCIENCESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectgraniteen_US
dc.subjectmafic microgranular enclaveen_US
dc.subjectmagma mixingen_US
dc.subjectSr-Nd-Pb isotopesen_US
dc.subjectTTGen_US
dc.subjectTurkeyen_US
dc.titleInteraction of the lithospheric mantle and crustal melts for the generation of the Horoz pluton (Nigde, Turkey): whole-rock geochemical and Sr-Nd-Pb isotopic evidenceen_US
dc.typeArticleen_US

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