Radiolarian biochronology of upper Anisian to upper Ladinian (Middle Triassic) blocks and tectonic slices of volcano-sedimentary successions in the Mersin Melange, southern Turkey: New insights for the evolution of Neotethys

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dc.contributor.authorTekin, U. Kagan
dc.contributor.authorBedi, Yavuz
dc.contributor.authorOkuyucu, Cengiz
dc.contributor.authorGoncuoglu, M. Cemal
dc.contributor.authorSayit, Kaan
dc.date.accessioned2020-03-26T19:25:56Z
dc.date.available2020-03-26T19:25:56Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe Mersin Ophiolitic Complex located in southern Turkey comprises two main structural units; the Mersin Melange, and a well-developed ophiolite succession with its metamorphic sole. The Mersin Melange is a sedimentary complex including blocks and tectonic slices of oceanic litosphere and continental crust in different sizes. Based on different fossil groups (Radiolaria, Conodonta, Foraminifera and Ammonoidea), the age of these blocks ranges from Early Carboniferous to early Late Cretaceous. Detailed fieldwork in the central part of the Mersin Melange resulted in identification of a number of peculiar blocks of thick basaltic pillow-and massive lava sequences alternating with pelagic-clastic sediments and radiolarian cherts. The oldest ages obtained from the radiolarian assemblages from the pelagic sediments transitional to the volcano-sedimentary succession in some blocks are middle to late Late Anisian. These pelagic sediments are overlain by thick sandstones of latest Anisian to middle Early Ladinian age. In some blocks, sandstones are overlain by clastic and pelagic sediments with lower Upper to middle Upper Ladinian radiolarian fauna. Considering the litho- and biostratigraphical data from Middle Triassic successions in several blocks in the Mersin Melange, it is concluded that they correspond mainly to the blocks/slices of the Beysehir-Hoyran Nappes, which were originated from the southern margin of the Neotethyan Izmir-Ankara Ocean. As the pre-Upper Anisian basic volcanics are geochemically evaluated as back-arc basalts, this new age finding suggest that a segment of the Izmir-Ankara branch of the Neotethys was already open prior to Middle Triassic and was the site of intraoceanic subduction. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipTurkish Scientific CouncilTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [112Y370]en_US
dc.description.sponsorshipWe are grateful to Turkish Scientific Council (Project No: 112Y370) for providing financial support to this research. Authors express their thanks to Seda Uzuncimen Keceli (Hacettepe University, Ankara, Turkey) for her technical helps during preparation of text. Spela Gorican (Institute of Paleontology, Ljubljana, Slovenia) and Nikita Bragin (Russian Academy of Sciences, Moscow, Russia) are gratefully acknowledged for their constructive review and comments.en_US
dc.identifier.doi10.1016/j.jafrearsci.2016.09.039en_US
dc.identifier.endpage426en_US
dc.identifier.issn1464-343Xen_US
dc.identifier.issn1879-1956en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage409en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jafrearsci.2016.09.039
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33928
dc.identifier.volume124en_US
dc.identifier.wosWOS:000389388700030en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofJOURNAL OF AFRICAN EARTH SCIENCESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectThe Mersin Melangeen_US
dc.subjectUpper Anisian-upper Ladinian blocksen_US
dc.subjectPelagic sediment-lava associationsen_US
dc.subjectRadiolarian datingen_US
dc.subjectNeotethyan evolutionen_US
dc.subjectSouthern central Tauridesen_US
dc.titleRadiolarian biochronology of upper Anisian to upper Ladinian (Middle Triassic) blocks and tectonic slices of volcano-sedimentary successions in the Mersin Melange, southern Turkey: New insights for the evolution of Neotethysen_US
dc.typeArticleen_US

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