An approach to geochemical characterization of productive versus barren granitoids in terms of iron in Central Turkey

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dc.contributor.authorKuşçu, İlkay
dc.contributor.authorKuşçu, Gonca Gençalioğlu
dc.contributor.authorSaraç, Cem
dc.contributor.authorMeinert, Lawrence D.
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T08:24:45Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T08:24:45Z
dc.date.issued2004
dc.departmentMühendislik Fakültesi
dc.description.abstractThe granitoids associated with, and without skarn type mineralizations in central Anatolia are termed as productive and barren granitoids, respectively. The study of the relationships between plutonic rocks in the Central Anatolian Crystalline Complex in central Turkey suggests a direct genetic connection between the composition of plutons, and their associated ore deposits. In order to discriminate between productive and barren granitoids, two Fe-skarn granitoids (Celebi and Karamadazi), and a series of barren plutons within central Anatolia were examined. The Karamadazi and Celebi granitoids are geochemically different from other barren plutons in Central Anatolia. The parameters governing the productivity of these granitoids were determined by principal component analysis (factor analysis) method. Based on this method, the factors controlling the geochemical characteristics of the Celebi granitoids are (Al2O3 + MgO + Fe2O3 + P2O5 + TiO2 + CaO)/(SiO2), (K2O + Rb)/(Na2O) and Rb/Sr ratios, and for the Karamadazi granitoid the Fe2O3 + MnO + MgO + P2O5 + Y)/(SiO2 + Rb) (FMMY/S) and (Na2O)/(K2O) ratios. These two granitoids are clearly distinguished from the barren Central Anatolian Granitoids (CAG) on Harker diagrams based on these controlling factors (parameters). Barren CAG plutons are different from the productive Celebi granitoids in their higher silica content and generally higher total alkali values. This study suggests that iron-producing granitoids are less differentiated and receive little contribution from continental crust compared to the barren granitoids. Higher apatite and zircon abundance in the Celebi granitoids suggest that the Celebi granitoids have more I-type characteristics compared to barren plutons of CAG. The Karamad granitoid is the most striking example for the granitoids in CAG, having a higher contribution from the continental crust as evidenced by higher Rb, Ba, Th, the highest mean Sc, V, and mean Zr, Y, Ni contents. Based on the factor analysis, it is proposed that the Karamadazi granitoid displays geochemical characteristics similar to the Terlemez and Agacoren granitoids of CAG. The factor analyses indicated that the first two factors are about the same for both the Fe-producing Celebi and Karamadazi granitoids. Therefore, this similarity has let to a conclusion that the productivity or non-productivity of the granitoids in Central Anatolia can be tested by examining and comparing the distribution of granitoids in diagrams designed according to the factors defined in this study. © 2004 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipNational Council for Scientific Research
dc.description.sponsorshipThe authors thank to Scientific and Technical Research Council of Turkey that funded this study (TUBITAK, project no: YDABCAG 198Y098). Prof. Dr N. Karahanoglu and an anonymous referee resulted in improvements to this manuscript.
dc.identifier.doi10.1016/j.jseaes.2003.12.007
dc.identifier.endpage325en_US
dc.identifier.issn1367-9120
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage311en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jseaes.2003.12.007
dc.identifier.urihttps://hdl.handle.net/20.500.12451/2963
dc.identifier.volume24en_US
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofJournal of Asian Earth Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBarren Plutons
dc.subjectCentral Anatolia
dc.subjectFactor Analysis
dc.subjectFe-skarn Aranitoids
dc.subjectProductive Plutons
dc.titleAn approach to geochemical characterization of productive versus barren granitoids in terms of iron in Central Turkey
dc.typeArticle

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