Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/287
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dc.contributor.authorBozkaya, Ömer-
dc.contributor.authorTürkmenoğlu, Asuman Günal-
dc.contributor.authorGöncüoğlu, Mehmet Cemal-
dc.contributor.authorOkuyucu, Cengiz-
dc.date.accessioned2021-12-13T10:23:58Z-
dc.date.available2021-12-13T10:23:58Z-
dc.date.issued2021-
dc.identifier.issn1464-343X-
dc.identifier.issn1879-1956-
dc.identifier.urihttps://doi.org/10.1016/j.jafrearsci.2021.104258-
dc.identifier.urihttps://hdl.handle.net/20.500.13091/287-
dc.description.abstractFive thin (5-15 cm) and yellowish green tephra (K-bentonite) layers are exposed along two sections in the south of Aksehir (Konya, southern Turkey) within the Early Carboniferous (Mississippian) red dolomite-dolomitic limestone succession of the Sultanda.g Unit in the central Tauride Belt. K-bentonites exhibit typical porphyritic texture with euhedral plagioclase phenocrysts replaced by fine-grained white K-micas and sparry dolomite crystals. The intensively sericitized volcanic matrix has vitrophyric texture and contains hydroxidized euhedral pyrite crystals. Illite is the only clay mineral in all K-bentonite samples. Non-clay minerals are dolomite, calcite, quartz, pyrite, rutile and zircon. Illites have sheet-like flakes (1-4 mu m sizes) showing well-developed orientations and partly slaty cleavage. Illite Kubler index values (KI, Delta degrees 2 theta) of K-bentonites reflect high-grade diagenetic to anchizonal conditions indicating temperatures that reached up to 200 degrees C. Illite d(060) values (1.4990-1.5007 angstrom) corresponding to dioctahedral composition display differences in coexisting slates and shales of the same age. Illite polytypes are characterized by the association of 2M(1), 1M and 1M(d). The presence of 1M illites is indicative of a volcanic (tephra) origin. Immobile element compositions suggest that tephras have been derived from trachyandesitic volcanism. K-bentonites exhibit some differences from the coeval pelitic occurrences in the Hadim-Bozkir areas, S Turkey, and the Late Devonian-Early Carboniferous K-bentonites in Bartin and Zonguldak areas of the Istanbul-Zonguldak Terrane, NW Turkey. A geochemical evolution of the studied K-bentonites suggests that they were possibly originated from the Early Carboniferous (Mississippian) intra-continental backarc magmatism at the northern margin of Gondwana-derived Tauride-Anatolide microplate.en_US
dc.description.sponsorshipTUBITAK - The Scientific and Technological Research Council of Turkey - (Scientific Research Project)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [CAYDAG 114Y651]en_US
dc.description.sponsorshipThis study was funded by TUB.ITAK -The Scientific and Technological Research Council of Turkey -(Scientific Research Project Grant No. CAYDAG 114Y651). The authors thank to Geological Engineers Omer Faruk Ozkaya and.Irem Ganiz-Alkose (Pamukkale University) for contributions and helping during field and laboratory studies. The authors also thank to two anonymous reviewers for the helpful and constructive comments which improved the quality of our manuscript.en_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofJOURNAL OF AFRICAN EARTH SCIENCESen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCentral Tauridesen_US
dc.subjectDiagenesisen_US
dc.subjectEarly Carboniferous Magmatismen_US
dc.subjectK-Bentoniteen_US
dc.subjectMetamorphic Evolutionen_US
dc.subjectEastern Pontidesen_US
dc.subjectRocksen_US
dc.subjectCrystallinityen_US
dc.subjectOriginen_US
dc.subjectZoneen_US
dc.subjectConstraintsen_US
dc.subjectAgeen_US
dc.subjectDiscriminationen_US
dc.subjectClassificationen_US
dc.titleGeological, mineralogical and geochemical characteristics of Mississippian K-bentonites from southern Turkey: A correlation with coeval tephras from Gondwana-derived terranesen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.jafrearsci.2021.104258-
dc.identifier.scopus2-s2.0-85106325300en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Jeoloji Mühendisliği Bölümüen_US
dc.authoridGoncuoglu, M. Cemal/0000-0002-4216-6995-
dc.authorwosidGoncuoglu, M. Cemal/D-2252-2010-
dc.authorwosidOkuyucu, Cengiz/A-1431-2018-
dc.identifier.volume181en_US
dc.identifier.wosWOS:000660988700009en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.authorscopusid56292334300-
dc.authorscopusid6602883119-
dc.authorscopusid7003963764-
dc.authorscopusid7801368079-
dc.identifier.scopusqualityQ2-
item.openairetypeArticle-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextembargo_20300101-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.dept02.07. Department of Geological Engineering-
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections
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