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https://hdl.handle.net/11499/46374
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bozkaya, Omer | - |
dc.contributor.author | Gunal-Turkmenoglu, Asuman | - |
dc.contributor.author | Goncuoglu, Mehmet Cemal | - |
dc.contributor.author | Okuyucu, Cengiz | - |
dc.date.accessioned | 2023-01-09T21:11:08Z | - |
dc.date.available | 2023-01-09T21:11:08Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 1464-343X | - |
dc.identifier.issn | 1879-1956 | - |
dc.identifier.uri | https://doi.org/10.1016/j.jafrearsci.2021.104258 | - |
dc.identifier.uri | https://hdl.handle.net/11499/46374 | - |
dc.description.abstract | Five 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.sponsorship | TUBITAK - The Scientific and Technological Research Council of Turkey - (Scientific Research Project) [CAYDAG 114Y651] | en_US |
dc.description.sponsorship | This 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.iso | en | en_US |
dc.publisher | Pergamon-Elsevier Science Ltd | en_US |
dc.relation.ispartof | Journal Of African Earth Sciences | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Central taurides | en_US |
dc.subject | Diagenesis | en_US |
dc.subject | Early carboniferous magmatism | en_US |
dc.subject | K-bentonite | en_US |
dc.subject | Metamorphic Evolution | en_US |
dc.subject | Eastern Pontides | en_US |
dc.subject | Rocks | en_US |
dc.subject | Crystallinity | en_US |
dc.subject | Origin | en_US |
dc.subject | Zone | en_US |
dc.subject | Constraints | en_US |
dc.subject | Age | en_US |
dc.subject | Discrimination | en_US |
dc.subject | Classification | en_US |
dc.title | Geological, mineralogical and geochemical characteristics of Mississippian K-bentonites from southern Turkey: A correlation with coeval tephras from Gondwana-derived terranes | en_US |
dc.type | Article | en_US |
dc.identifier.volume | 181 | en_US |
dc.authorid | Goncuoglu, M. Cemal/0000-0002-4216-6995 | - |
dc.authorid | Okuyucu, Cengiz/0000-0002-5574-7852 | - |
dc.identifier.doi | 10.1016/j.jafrearsci.2021.104258 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.authorscopusid | 56292334300 | - |
dc.authorscopusid | 6602883119 | - |
dc.authorscopusid | 7003963764 | - |
dc.authorscopusid | 7801368079 | - |
dc.authorwosid | Goncuoglu, M. Cemal/D-2252-2010 | - |
dc.authorwosid | Okuyucu, Cengiz/A-1431-2018 | - |
dc.identifier.scopus | 2-s2.0-85106325300 | en_US |
dc.identifier.wos | WOS:000660988700009 | en_US |
dc.identifier.scopusquality | Q2 | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.dept | 10.08. Geological Engineering | - |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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