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Late Permian (Tatarian) fluvio-lacustrine successions in NW Anatolia (Zonguldak Terrane, Turkey): palaeogeographic implications

Published online by Cambridge University Press:  25 July 2016

CENGİZ OKUYUCU ,
TATYANA K. DIMITROVA ,
MEHMET CEMAL GÖNCÜOĞLU  and
İBRAHİM GEDİK
CENGİZ OKUYUCU*
Affiliation:
Department of Geological Engineering, Selçuk University, 42250 Selçuklu, Konya, Turkey
TATYANA K. DIMITROVA
Affiliation:
Bulgarian Academy of Sciences, Institute of Geology, 1113 Sofia, Bulgaria
MEHMET CEMAL GÖNCÜOĞLU
Affiliation:
Department of Geological Engineering, Middle East Technical University, 06800 Çankaya, Ankara, Turkey
İBRAHİM GEDİK
Affiliation:
General Directorate of Mineral Research and Exploration (MTA), Department of Geological Research, 06800 Çankaya, Ankara, Turkey
*
†Author for correspondence: okuyucucengiz@gmail.com
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Abstract

Late Permian fluvio-lacustrine successions of the Çakraz Formation in the Zonguldak Terrane between the regions of Akçakoca and Ereğli were investigated in order to describe the litho- and biostratigraphic properties and explain the depositional environment. The studied succession with black, dark-grey to greenish-grey shales, siltstones and limestones is named the Alaplı Member to distinguish it from the classical red clastic successions, which are tentatively named the Ereğli Member of the Çakraz Formation. The organic-rich black shales, mudstones and limestones of the Alaplı Member yielded palynological assemblages suggesting a Lopingian (Tatarian) age. The lack of any marine macro- or microfossils, the fine-grained character of the lithofacies with abundant plant material and the association of poorly sorted conglomerates in the middle part of the succession indicate possible deposition in a broad range of fluvial and lacustrine environments. Successions of similar age and depositional environment are known from the East European Variscan Belt in Bulgaria and Romania. Common successions were also developed in actively extending shallow-marine platforms on the NW Palaeotethyan margin at the end of the Permian Period.

Keywords

PermianLopingianTatarianpollenZonguldak TerraneTurkey
Type
Original Articles
Information
Geological Magazine , Volume 154 , Issue 5 , September 2017 , pp. 1073 - 1087
Copyright
Copyright © Cambridge University Press 2016 

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References

Akyol, Z., Arpat, E., Erdoğan, B., Göğer, E., Güney, Y., Şaroğlu, F., Şentürk, İ., Tütüncü, K. & Uysal, Ş. 1974. Geological map of the Cide-Kurucaşile region, scale 1: 50 000. Maden Tetkik ve Arama Enstitüsü, Ankara.Google Scholar
Alişan, C. & Derman, A. S. 1995. The first palynological age, sedimentological and stratigraphic data for the Çakraz Group (Triassic), Western Black Sea. In Geology of the Black Sea Region (eds Erler, A., Ercan, T., Bingöl, E. & Örçen, S.), pp. 93–8. Proceedings of the International Symposium on the Geology of Black Sea Region. Ankara, Turkey: General Directorate of Mineral Research and Exploration.Google Scholar
Altınlı, I.E. 1968. İzmit-Hereke-Kurucadağ alanının jeoloji incelemesi. (Geological investigation of İzmit-Hereke Kurucadağ region.) Maden Tetkik ve Arama (MTA) Dergisi 71, 1–26 (in Turkish).Google Scholar
Altun, İ. & Aksay, A. 2002. 1:100.000 Scaled Geological Maps and Explanations: Sheet Ereğli F26, No: 27. Ankara, Turkey: General Directorate of Mineral Research and Exploration.Google Scholar
Arthaber, G.V. 1915. Die Trias von Bithynien (Anatolien). Beitrage zur Palaontologie Geologischen Osterreich-Ungarns und des Orients 27, 85–206.Google Scholar
Aydin, M., Serdar, H. S., Şahinturk, O., Yazman, M., Cokuğraş, R., Demir, O. & Özcelik, Y. 1987. Camdağ (Sakarya) - Sünnicedağ (Bolu) yöresinin jeolojisi. Bulletin of the Geological Society of Turkey 30, 1–4 (in Turkish).Google Scholar
Balme, B. E. 1970. Palynology of Permian and Triassic strata in the Salt Range and Surghar Range, West Pakistan. In Stratigraphic Boundary Problems: Permian and Triassic of West Pakistan (eds Kummel, B. & Teichert, C.), pp. 305–453. University Press of Kansas, Department of Geology, Special Publication no. 4.Google Scholar
Balme, B. E. 1995. Fossil in situ spores and pollen grains: an annotated catalogue. Review of Palaeobotany and Palynology 87, 81–323.Google Scholar
Benton, M. J., Tverdokhlebov, V. P. & Surkov, M. V. 2004. Ecosystem remodelling among vertebrates at the Permo-Triassic boundary in Russia. Nature 432, 97–100.CrossRefGoogle Scholar
Bozkaya, Ö., Yalçin, H. & Göncüoğlu, M. C. 2012 a. Mineralogic evidences of a mid-Paleozoic tectono-thermal event in the Zonguldak Terrane, NW Turkey: implications for the dynamics of some Gondwana-derived terranes during the closure of the Rheic Ocean. Canadian Journal of Earth Sciences 49, 559–75.CrossRefGoogle Scholar
Bozkaya, Ö., Yalçin, H. & Göncüoğlu, M. C. 2012 b. Diagenetic and very low-grade metamorphic characteristics of the Paleozoic series of the İstanbul Terrane (NW Turkey). Swiss Journal of Geosciences 105, 183–201.CrossRefGoogle Scholar
Cassinis, G., Durand, M. & Ronchi, A. 2007. Remarks on the Permian-Triassic transition in Central and Eastern Lombardy (Southern Alps, Italy). Journal of Iberian Geology 33, 143–62.Google Scholar
Clement-Westerhof, J. A. 1987. Aspects of Permian paleobotany and Palynology VII. The majoricaceae, a new family of Late Permian conifers. Review of Palaeobotany and Palynology 52, 375–402.Google Scholar
Derman, A. S. 1997. Sedimentary characteristics of Early Paleozoic rocks in the western Black Sea region, Turkey. In Early Paleozoic Evolution in NW Gondwana (eds Göncüoğlu, M. C. & Derman, A. S.), pp. 24–31. Turkish Association of Petroleum Geologists, Special Publication no. 3.Google Scholar
Dimitrova, T., Broutın, J., Yanev, S. & Petrunova, L. 2005. New biostratigraphic data for the Late Permian in north-east Bulgaria, based on palynological investigation of the Borehole OP-Mirovo. International Joint Meeting APLF-TMS-LSPG. Palynology, Paleolatitudes, Paleoaltitudes, MNHN, 3–7 October 2005, France, 45–9.Google Scholar
Dimitrova, T., Petrunova, L. & Yanev, S. 2006. Permian palynostratigraphy from Northeast Bulgaria. Review of the Bulgarian Geological Society 1–3, 104–11.Google Scholar
Dimitrova, T. & Stolle, E. 2010. Tracking palynological species as climate indicators in late Permian of Bulgaria and NW Turkey. Proceedings of the Third International Palaeontological Congress. 28 June – 3 July 2010, London, 148.Google Scholar
Dojen, C., Özgül, N., Göncüoğlu, Y. & Göncüoğlu, M.C. 2004. Early Devonian Ostracodes of Thuringian Ecotype from NW Anatolia (Turkey). Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 12, 733–48.Google Scholar
Fıjalkowska, A. 1994. Palynological aspects of the Permo-Triassic succession in the Holy Cross Mountains, Poland. Documenta Nature 87, 1–76.Google Scholar
Florın, R. 1927. Preliminary descriptions of some Palaeozoic genera of coniferae. Arkiv för Botanik 21A, 1–7.Google Scholar
Gand, G., Tüysüz, O., Steyer, J. S., Allain, R., Sakinç, M., Sanchez, S., Şengör, A. M. C. & Şen, Ş. 2011. New Permian tetrapod footprints and macroflora from Turkey (Çakraz Formation, northwestern Anatolia): Biostratigraphic and palaeoenvironmental implications. Comptes Rendus Palevol 10, 617–25.Google Scholar
Gedik, İ. & Aksay, İ. 2002. 1:100.000 Scaled Geological Maps and Explanations. Sheet Adapazarı G25, no. 32. Ankara, Turkey: General Directorate of Mineral Research and Exploration.Google Scholar
Gedik, İ. & Önalan, M. 2001. New observations on the Paleozoic stratigraphy of Çamdağ (Sakarya Province). Istanbul University Yerbilimleri 14, 61–76.Google Scholar
Golubev, V. K., Sılantıev, V. V., Balabanov, Y. P., Kotlyar, G. V., Mınıkh, A. V. & Molostovskaya, I. I. 2014. The Permian sequence of Russian Plate as a global standard of the continental Middle-Upper Permian. In Carboniferous and Permian Earth Systems, Stratigraphic Events, Biotic Evolution, Sedimentary Basins and Resources (eds Nurgaliev, D. K., Silantiev, V. V. & Urazaeva, M. N.), pp. 39–40. Proceeding of Kazan Golovkinsky Stratigraphic Meeting, 20–23 October 2014, Kazan.Google Scholar
Göncüoğlu, M.C. 2010. Introduction to the Geology of Turkey: Geodynamic Evolution of the Pre-Alpine and Alpine Terranes. General Directorate of Mineral Resource and Exploration (MTA), Monography Series no. 5, 1–66.Google Scholar
Göncüoğlu, M. C., Boncheva, I. & Göncüoğlu, Y. 2004. First discovery of Middle Tournaisian conodonts in the Griotte-type nodular pelagic limestones, Istanbul area, NW Turkey. Rivista Italiana di Paleontologia e Stratigrafia 110, 431–9.Google Scholar
Göncüoğlu, M. C., Dirik, K. & Kozlu, H. 1997. General characteristics of pre-Alpine and Alpine Terranes in Turkey: explanatory notes to the terrane map of Turkey. Annales Géologiques des pays Helléniques 37, 515–36.Google Scholar
Göncüoğlu, M. C. & Kozlu, H. 2000. Early Paleozoic evolution of the NW Gondwanaland: data from southern Turkey and surrounding regions. Gondwana Research 3, 315–23.CrossRefGoogle Scholar
Göncüoğlu, M. C. & Kozur, H. 1998. Remarks on the pre-Variscan development in Turkey. In Pre-Variscan Terrane Analysis of “Gondwanan Europe” (eds Linnemann, U., Heuse, T., Fatka, O., Kraft, P., Brocke, R. & Erdtmann, B. T.), pp. 137–8. Proceedings, Schriften des Staatlichen Museums Mineralogie und Geologie Dresden no. 9.Google Scholar
Göncüoğlu, M. C., Okuyucu, C. & Dimitrova, T. 2011. Late Permian (Tatarian) deposits in NW Anatolia: palaeogeographical implications. Geoecomarina 17, 79–82.Google Scholar
Göncüoğlu, M. C., Sachanski, V., Gutierrez-Marco, J. C. & Okuyucu, C. 2014. Ordovician graptolites from the basal part of the Palaeozoic transgressive sequence in the Karadere area, Zonguldak Terrane, NW Turkey. Estonian Journal of Earth Sciences 63, 227–32.Google Scholar
Grancy, W. S. 1938. Karabük havalisinde yapılan jeolojik tetkikata ait rapor. Institute of Mineral Research and Exploration (MTA), Report no. 563.Google Scholar
Güvenç, T., Demirel, I. H., Meşhur, M., Gül, M. A. & Tekin, U. K. 1994. The paleogeography of Anatolia during the Permian and Triassic. In Proceedings of the International Permian Congress, 1991. Earth Sciences and Resources Institute, University of South Caroline, University of Utah, 11A–B, 11–42.Google Scholar
Hart, G.F. 1963. Microflora from the Ketewaka-Mchuchuma Coalfield, Tanganyika. Bulletin of the Geological Survey of Tanganyika 36, 27 pp.Google Scholar
Hochuli, P. A., Hermann, E., Vigran, J. O., Bucher, H. & Weissert, H. 2010. Rapid demise and recovery of plant ecosystem across the end-Permian extinction event. Global and Planetary Change 74, 144–55.Google Scholar
Howell, D.G. 1989. Tectonics of Suspect Terranes: Mountain Building and Continental Growth. London, New York: Chapman and Hall, 232 pp.Google Scholar
Jın, Y.-G., Glenıster, B. F., Kotlyar, G. V. & Sheng, J.-Z., 1994. An operational scheme of Permian chronostratigraphy. Palaeoworld 4, 1–13.Google Scholar
Jongmans, W. J. 1939. Vorlaufiger Bericht über die palaeobotanischen und hierauf basierten stratigrafischen und tektonischen Verhaltnisse in den Kohlenbecken Anatoliens. Institute of Mineral Research and Exploration (MTA), Report no. 900.Google Scholar
Kaya, O., Wiedmann, J. & Kozur, H. 1986. Preliminary report on the stratigraphy, age and structure of the so-called Late Paleozoic and/or Triassic Melange or suture zone complex of northwestern and western Turkey. Yerbilimleri 13, 1–16.Google Scholar
Kerey, İ. E. 1984. Facies and tectonic setting of the Upper Carboniferous rocks of NW Turkey. In The Geological Evolution of the Eastern Mediterranean (eds Dixon, J. E. & Robertson, A. H. F.), pp. 123–8. Geological Society of London, Special Publication no. 17.Google Scholar
Kotlyar, G. V., Golubev, V. K. & Sılantıev, V. V. 2013. General stratigraphic scale of the Permian system: current state of affairs. In General Stratigraphic Scale of Russia (eds Gladenkov, Yu. B., Zakharov, V. A. & Ippolitov, A. P.), pp. 171–9. All-Russian Conference, 23–25 May 2013, Moscow.Google Scholar
Kozur, H. & Göncüoğlu, M.C. 2000. Mean features of the pre-Variscan development in Turkey. Acta Universitatis Carolinae-Geologica 42, 459–64.Google Scholar
Martinez Catalan, J. R., Fernandez-Suarez, J., Jenner, G. A., Belousova, E. & Diez Montes, A. 2004. Provenance constraints from detrital zircon U–Pb ages in the NW Iberian Massif: implications for Paleozoic plate configuration and Variscan evolution. Journal of the Geological Society, London 161, 461–73.Google Scholar
Mazur, S., Aleksandrowski, P., Kryza, R. & Oberc-Dziedzic, T. 2006. The Variscan Orogen in Poland. Geological Quarterly 50, 89–118.Google Scholar
Newell, A. J., Sennikov, A. G., Benton, M. J., Molostovskaya, I. I., Golubev, V. K., Minikh, A. V. & Minikh, M. G. 2010. Disruption of playa-lacustrine depositional systems at the Permo-Triassic boundary: Evidence from Vyazniki and Gorokhovets on the Russian Platform. Journal of the Geological Society, London 167, 695–716.Google Scholar
Newell, A. J., Tverdokhlebov, V. P. & Benton, M. J. 1999. Interplay of tectonics and climate on a transverse fluvial system, Upper Permian, southern Uralian foreland basin. Sedimentary Geology 127, 11–29.CrossRefGoogle Scholar
Okuyucu, C., Vachard, D. & Göncüoğlu, M. C. 2013. Refinements in biostratigraphy of the foraminiferal zone MFZ11 (late early Viséan, Mississippian) in the Cebeciköy Limestone (Istanbul Terrane, NW Turkey) and palaeogeographic implications. Bulletin of Geosciences 88, 621–45.Google Scholar
Opluštil, S., Šimunek, Z., Zajic, J. & Mencl, V. 2013. Climatic and biotic changes around the Carboniferous/Permian boundary recorded in the continental basins of the Czech Republic. International Journal of Coal Geology 119, 114–51.Google Scholar
Özgül, N. 2012. Stratigraphy and some structural features of the İstanbul Paleozoic. Turkish Journal of Earth Sciences 21, 817–66.Google Scholar
Poort, R., Clement-Westerhof, J. A., Looy, C. V. & Visscher, H. 1997. Aspects of Permian paleobotany and Palynology 17. Conifer exinction in Europe at the Permian-Triassic junction: morphology, ultrastructure and geographic/stratigraphic distribution of Nuskoisporites dulhuntyi . Review of the Bulgarian Geological Society 97, 9–39.Google Scholar
Sachanski, V., Göncüoğlu, M. C., Lakova, I., Boncheva, I. & Saydam-Demiray, G. 2012. Silurian graptolite, conodont and cryptospore biostratigraphy of the Gülüç¸ section in Ereğli, Zonguldak Terrane, NW Anatolia, Turkey. Turkish Journal of Earth Sciences 21, 867–903.Google Scholar
Schaarschmidt, F. 1963. Sporen und Hystrichosphaerideen aus dem Zechstein von Biudingen in der Wetterau. Palaeontographica, Abt. B, 113, 38–91.Google Scholar
Seghedi, A. 2012. Palaeozoic formations from Dobrogea and PreDobrogea: an overview. Turkish Journal of Earth Sciences 21, 669–721.Google Scholar
Seghedi, A., Popa, M., Oaie, G. & Nicolae, I. 2001. The Permian System in Romania. Natura Bresciana, Annuario de Museo Civico di Storia Naturale di Brescia, Monografia 25, pp. 281–293.Google Scholar
Şengör, A.M.C., Yılmaz, Y. & Sungurlu, O. 1984. Tectonics of the Mediterranean Cimmerides: nature and evolution of the western termination of Paleo-tethys. In The Geological Evolution of the Eastern Mediterranean (eds Dixon, J.E. & Robertson, A.H.F.), pp. 17–112. Geological Society of London, Special Publication no. 17.Google Scholar
Stephenson, M. H., Osterloff, P. L. & Fılatoff, J. 2003. Palynological biozonation of the Permian of Oman and SaudiArabia: progress and challenges. GeoArabia 8, 467–96.Google Scholar
Stolle, E. 2011. Pollen-dominated “European” palynological assemblages from the Permian of NW Turkey (Asia Minor) – palaeogeographical context and microfloral affinities. Geological Quarterly 55, 181–6.Google Scholar
Stolle, E. 2012. Co-occurrence of Sinuspores sinuatus (Artüz) Ravn, 1986 with established palynological markers indicating younger strata: AK-1X well section (Pennsylvanian, Zonguldak Basin, NW Turkey) and the correlation to the stratigraphic system. Geologia Croatica 65, 271–81.Google Scholar
Stolle, E. 2014. Çakraz Formation, Çamdağ area, NW Turkey: early/mid-Permian age, Rotliegend (Germany) and Southern Alps (Italy) equivalent: a stratigraphic re-assessment via palynological long-distance correlation. Geological Journal 51 (2), 223–35.Google Scholar
Stolle, E., Yalçin, M. N. & Kavak, O. 2011. The Permian Kaş Formation of SE Turkey-palynological correlation with strata from Saudi Arabia and Oman. Geological Journal 46, 561–73.Google Scholar
Stolle, E., Yalçin, M. N. & Kozlu, H. 2012. Palynofacies and bulk organic geochemistry of Permian clastics in the eastern Taurids: implications for hydrocarbon potential. In Paleozoic of Northern Gondwana and Its Petroleum Potential, A Field Workshop (eds Yalçın, M. N., Corbacıoglu, H., Aksu, O. & Bozdogan, N.), pp. 119–22. Turkish Association of Petroleum Geologists, Special Publication no. 6.Google Scholar
Strickland, H. E. 1840. On the geology of the Thracian Bosphorus. Transactions of the Geological Society of London 2, 385–91.Google Scholar
Taylor, G. K., Tucker, C., Twitchett, R. J., Kearsey, T., Benton, M. J., Newell, A. J., Surkov, M. V. & Tverdokhlobov, V. P. 2009. Magnetostratigraphy of Permian/Triassic boundary sequences in the Cis-Urals, Russia: No evidence for a major temporal hiatus. Earth and Planetary Science Letters 281, 36–47.CrossRefGoogle Scholar
Taylor, T. N. & Taylor, E. L. 1993. The Biology and Evolution of Fossil Plants. Englewood Cliffs, NJ: Prentice Hall, 982 pp.Google Scholar
Tchihatcheff, P. 1854. Dépôts paléozoïques de la Cappadoce et du Bosphore. Bulletin de la Société Géologique de France 11, 402–16.Google Scholar
Timur, E. & Aksay, A. 2002. 1:100.000 Scaled Geological Maps and Explanations. Sheets Ereğli F24 and F25, No: 26. Ankara, Turkey: General Directorate of Mineral Research and Exploration.Google Scholar
Tokay, M. 1962. Amasra bölgesinin jeolojisi ve Karbonifer'de gravite yoluyla bazı kayma olayları;. Bulletin of the Mineral Research and Exploration (MTA) 58, 1–20.Google Scholar
Traverse, A. 1988. Paleopalynology. Boston: Unwin Hyman, 600 pp.Google Scholar
Tüysüz, O., Aksay, A. & Yiğitbaş, E. 2004. Batı Karadeniz Bölgesi Litostratigrafi Birimleri. Maden Tetkik ve Arama Genel Müdürlügü, Litostratigrafi Birimleri Serisi 1, 1–92.Google Scholar
Tverdokhlebov, V. P., Tverdokhlebova, G. I., Benton, M. J. & Storrs, G. W. 1997. First record of footprints of terrestrial vertebrates from the Upper Permian of the Cis-Urals, Russia. Palaeontology 40, 157–66.Google Scholar
Tverdokhlebov, V. P., Tverdokhlebova, G. I., Minikh, A. V., Surkov, M. V. & Benton, M. J. 2005. Upper Permian vertebrates and their sedimentological context in the South Urals, Russia. Earth Science Reviews 69, 27–77.Google Scholar
Uttıng, J., Esaulova, N. K., Sılantıev, V. V. & Makarova, O. V. 1997. Late Permian palynomorph assemblages from Ufimian and Kazanian type sequences in Russia, and comparison with Roadian and Wordian assemblages from the Canadian Artic. Canadian Journal of Earth Sciences 34, 1–16.Google Scholar
Verneuil, M. De. 1836–1837. Notice géologique sur les environs de Constantinople. Bulletin de la Société Géologique de France 1, 268–78.Google Scholar
Visscher, H. 1971. The Permian and Triassic of the Kingscourt Outlier, Ireland. A Palynological Investigation Related to Regional Stratigraphical Problems in the Permian and Triassic of Western Europe. Geological Survey of Ireland, Special publication no. 1, 114 pp.Google Scholar
Vısscher, H., Looy, C., Collınson, M., Brınkhuıs, H., van Konıjnenburg-van Cıttert, J., Kurscher, W. & Sephoton, M. 2004. Environmental mutagenesis during the end-Permian ecological crisis. PNAS 101, 12952–6.CrossRefGoogle ScholarPubMed
Wedding, H. 1970. Über eine interessante Blattverschiebung ostwaerts Bartın (Provinz Zonguldak). Bulletin of the Mineral Research and Exploration (MTA) 74, 43–51.Google Scholar
Yalçin, M. N. & Yilmaz, İ. 2010. Devonian in Turkey – a review. Geologica Carpathica 61, 235–53.Google Scholar
Yanev, S. 1970. Paleogeography of NW Bulgaria during the Late Paleozoic. Review of the Bulgarian Geological Society 31 (1), 197–208.Google Scholar
Yanev, S. 1981. The Permian of Bulgaria. International Symposium on Central European Permian, Jabłonna, 27–29 April 1978, Geological Institute, Warsaw, 104–26.Google Scholar
Yanev, S. 1989. Facies milieus und deren raumliche und zeitliche Verteilung bei der variszischen Molassebildung in Bulgarien. Zeitschrift für Geologische Wissenschaften 17 (8), 765–78.Google Scholar
Yanev, S. 1993. Gondwana Paleozoic terranes in the Alpine collage system of the Balkans. Himalayan Geology 4, 257–70.Google Scholar
Yanev, S. 1997. Paleozoic migration of terranes from the basement of the eastern part of the Balkan peninsula from peri-Gondwana to Laurussia. In Early Paleozoic Evolution in NW Gondwana (eds Göncüoğlu, M.C. & Derman, A.S.), pp. 89–100. Turkish Association of Petroleum Geologists, Special Publication no. 3.Google Scholar
Yanev, S. 2000. Palaeozoic terranes of the Balkan Peninsula in the framework of Pangea assembly. Palaeogeography, Palaeoclimatology, Palaeoecology 161, 151–77.Google Scholar
Yanev, S. & Adamia, S. 2010. General correlation of the Late Palaeozoic sequences in the Balkans and the Caucasus. Yerbilimleri 31, 1–22.Google Scholar
Yanev, S., Göncüoğlu, M. C., Gedik, İ., Lakova, I., Boncheva, I., Sachanski, V., Okuyucu, C., Özgül, N., Timur, E., Maliakov, Y. & Saydam, G. 2006. Stratigraphy, correlations and paleogeography of Palaeozoic terranes in Bulgaria and NW Turkey: a review of recent data. In Tectonic Development of the Eastern Meditteranean Region (eds Robertson, A. H. F. & Mountrakis, D.), pp. 51–67. Geological Society of London, Special Publication no. 260.Google Scholar
Yanev, S., Maslarevic, L.J. & Krstic, B. 2001. Outline of the Permian paleogeography in central and eastern parts of the Balkan Peninsula. Natura Bresciana, Annuario de Museo Civico di Storia Naturale di Brescia, Monografia 25, 235–44.Google Scholar
Yazman, M. & Çokuğraş, R. 1983. Adapazarı-Kandıra-Düzce-Akçakoca yerleşim merkezleriyle sınırlı alanın jeolojisi ve hidrokarbon olanakları (Geology and hydrocarbon potential of Adapazarı-Kandıra-Düzce-Akçakoca region). Turkish Petroleum Coorporation (TPAO) Report no. 1747.Google Scholar
Yergök, F. A., Akman, Ü., Tekin, F., Karabalik, N. N., Arbas, A., Akat, U., Armağan, F., Erdogan, K. & Karakullukçu, H. 1987. Bati Karadeniz Bölgesinin Jeolojisi I. Maden Tetkik ve Arama Genel Müdürlüğü (MTA) Report no. 8273.Google Scholar
Zauer, V. V. 1960. On the late Permian flora in the Solikamsk region (according to spore-pollen analysis). Akademiya Nauk SSSR, Paleontologicheskö Zhurnal 4, 114–24.Google Scholar