Refinements in biostratigraphy of the foraminiferal zone MFZ11 (late early Visean, Mississippian) in the Cebecikoy Limestone (Istanbul Terrane, NW Turkey) and palaeogeographic implications

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OKUYUCU C., Vachard D., GÖNCÜOĞLU M. C.

BULLETIN OF GEOSCIENCES, cilt.88, sa.3, ss.621-645, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 88 Sayı: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.3140/bull.geosci.1387
  • Dergi Adı: BULLETIN OF GEOSCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.621-645
  • Anahtar Kelimeler: Visean, Turkey, Istanbul Terrane, foraminiferal zone MFZ11, biostratigraphy, foraminifers, algae incertae sedis, systematics, palaeogeography, PALEOZOIC TERRANES, EASTERN TAURIDES, CENTRAL-EUROPE, STRATIGRAPHY, MOUNTAINS, SEDIMENTS, SUTURES, MIDDLE
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The Cebecikoy Limestone from the Variscan flysch of the Istanbul Terrane is assigned to the foraminiferal MFZ11 zone (late early Visean, formerly V2a). This zone is essentially the range zone of Uralodiscus rotundus. Additional bioevents are proposed for characterizing the upper part of this biozone (MFZ11B subzone): the LAD of Eoendothyranopsis and the FAD of Pararchaediscus and Conilidiscus. The majority of foraminifers and algae, belonging locally to MFZ11 are well-known, except for the following taxa: Issinella luteotubulifomis sp. nov., I. enormis sp. nov., Vicinesphaera parasqualida sp. nov., Planogloboendothyra modesta sp. nov. and Endothyra irinaeformis sp. nov. The Istanbul Terrane is connected with the southern branch of the Palaeotethys, whereas the Zonguldak Terrane is connected with the northern branch of this one.