Geochemistry and provenance of Maastrichtian clastic rocks in the Dikmendede formation of Orhaniye in Kazan-Ankara-Turkey region

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dc.contributor.authorOzkan A.M.
dc.contributor.authorAyaz-Bozdag A.
dc.date.accessioned2020-03-26T18:22:15Z
dc.date.available2020-03-26T18:22:15Z
dc.date.issued2011
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractAn integrated petrographic and geochemical study of the sandstones of the Maastrichtian-aged in the Orhaniye (Kazan-Ankara-Turkey) was carried out to obtain more information on their provenance, sedimentological history and tectonic setting. Depending on their matrix and mineralogical content, the Maastrichtian sandstones are identified as lithic arenite/wacke. The Dikmendede sandstones derived from types of provenances, the recycled orogen and recycled transitionaI. The chemical characteristics of the Dikmendede sandstones, i.e., fairly uniform compositions, high Th/U ratios (>3.0), negative Eu anomalies (Eu/Eu* 0.72-0.99) and Th/Sc ratios (mostly less than 1.0), favor the OUC (old upper continental crust) provenance for the Dikmendede sandstones. The SiO2/Al2O3, Th/Sc (mostly <1.0) and La/Sc (<4.0) ratios are; however, slightly lower than typical OUC, and these ratios may suggest a minor contribution of young arc-derived material. The rare earth element (REE) pattern, and La/Sc versus Th/Co plot suggests that these sediments were mainly derived from felsic source rocks. The Dikmendede sandstones have high Cr (123-294 ppm) and Ni (52-212 ppm) concentrations, Cr/Ni ratio of 1.93, and a medium correlation coefficient between Cr and Ni and corresponding medium to high correlation of both (Cr and Ni, respectively) elements with Co. These relationships indicate a significant contribution of detritus froni 0phi0Utic rocks. As rare earth element data are available for the Dikmendede sandstones, the Eu/Eu* is compared with LaN/YbN. Samples plot in the area of overlapping between continental collision, strike-slip and continental arc basins. The predominantly felsic composition of the Dikmendede sandstones is supported by the REE plots, which show enriched light REE, negative Eu anomaly and flat or uniform heavy REE. The Dikmendede sandstones have compositions similar to those of the average upper continental crust and post-Archean Australian shales. This feature indicates that the sediments were derived mainly from the upper continental crust. The Dikmendede sandstones have chemical index of alteration (CIA) values of 28-49, with an average of 40 indicating a low degree of chemical weathering in the source area. The compositional immaturity of the analyzed sandstone samples is typical of subduction-related environments, and their SiO2/Al2O 3 and K20/Na20 ratios and Co, Sc, Th and Zr contents reflect their oceanic and continental-are settings. The Dikmendede sandstones were developed as flysch deposits derived from mixed provenance in a collision belt.en_US
dc.identifier.doi10.1111/j.1755-6724.2011.00541.xen_US
dc.identifier.endpage1083en_US
dc.identifier.issn1000-9515en_US
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage1067en_US
dc.identifier.urihttps://dx.doi.org/10.1111/j.1755-6724.2011.00541.x
dc.identifier.urihttps://hdl.handle.net/20.500.12395/27240
dc.identifier.volume85en_US
dc.identifier.wosWOS:000295513600012en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-Blackwell Publishing Asiaen_US
dc.relation.ispartofActa Geologica Sinicaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectDikmendedeen_US
dc.subjectFlyschen_US
dc.subjectOrhaniyeen_US
dc.subjectProvenansen_US
dc.subjectSandstoneen_US
dc.titleGeochemistry and provenance of Maastrichtian clastic rocks in the Dikmendede formation of Orhaniye in Kazan-Ankara-Turkey regionen_US
dc.typeArticleen_US

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