Şenol ÇAPKINOĞLU, İsmet GEDİK

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Late Devonian conodont fauna of the Gümüşali formation,the eastren Taurides,Turkey

Doğu Toroslar boyunca yaygın yüzeylemeleri olan Geç Devoniyen yaşlı Gümüşali formasyonu, yaklaşık 600 metre kalınlığa ulaşan bir kırıntılı-karbonat kaya dizisidir. Litolojisini başlıca kuvars kumtaşı, kuvars miltaşı, şeyl ve karbonat kayalarının oluşturduğu bu birimin paleontolojik ve sedimantolojik özellikleri, çökelmenin başlıca sığ, gelgit altı ortamda geliştiğine işaret eder. Konodont faunası genellikle kıyı-yakını polygnathid-icriodid biyofasiyesini temsil eder, ve ܆st falsiovalis Zonu'ndan †Üst praesulcata Zonu içine kadar uzanan bir aralığı temsil eder. Bununla beraber, zon belirleyici taksonların yokluğu ve mevcut taksonların dŸüzensiz dikey dağılımından dolayı, Geç Devoniyen standard konodont zonlaması ile tam bir korelasyon sağlanamamıştır. İncelenen stratigrafik kesitteki kireçtaşı katmanlarından alınan 107 örnekten, 9 cinse ait toplam 54 tür ve alttür tanımlanmıştır. Tanımlanan taksonlardan 3 tanesi ( Icriodus adanaensis n.sp., Icriodus fekeensis n.sp. ve Polygnathus antecompressus n.sp.) yeni türdür.

Gümüşali formasyunu'nun (Doğu Toroslar,Türkiye) Geç Devoniyen konodont faunası

The Late Devonian Gümüşali formation of the eastern Taurides is a terrigenous-carbonate rock sequence about 600 m thick, consisting mainly of quartz sandstone, quartz siltstone, shale, and carbonate rocks. Palaeontologic and sedimentologic data mainly indicate a shallow subtidal depositional environment. This sequence generally represents the shallow-water polygnathid-icriodid biofacies, and contains conodont faunas that range from the Upper falsiovalis Zone into the Upper praesulcata Zone. However, they do not correlate well to the Late Devonian standard conodont zonation because of the lack of zonally diagnostic species and the irregular vertical distributions of the present taxa. Herein, 54 taxa belonging to nine genera are described and illustrated from the studied section. Icriodus adanaensis, Icriodus fekeensis, and Polygnathus antecompressus are the newly described species.
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Turkish Journal of Earth Sciences-Cover
  • ISSN: 1300-0985
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
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