Oligocene vegetation and climate characteristics in north-west Turkey: data from the south-western part of the Thrace Basin

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dc.authoridYESILYURT, Sevinc/0000-0002-0062-0491
dc.authoridDurak, Sariye Duygu/0000-0003-4209-2081
dc.authoridAkgun, Funda/0000-0002-6028-6704
dc.contributor.authorAkgun, Funda
dc.contributor.authorAkkiraz, Mehmet Serkan
dc.contributor.authorUcbas, Sariye Duygu
dc.contributor.authorBozcu, Mustafa
dc.contributor.authorYesilyurt, Sevinc Kapan
dc.contributor.authorBozcu, Ayse
dc.date.accessioned2025-01-27T20:27:00Z
dc.date.available2025-01-27T20:27:00Z
dc.date.issued2013
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this paper we present the first palynomorph and mollusc assemblages from the sediments in three different sections. From east to west, these are the Sevketiye (northern Biga Peninsula), the Tayfur (Gelibolu Peninsula) and the Kuzu harbour (Gokceada) (parts of the Danismen Formation) sections in the south and south-western side of the Thrace Basin (north-west Turkey), with the aim of obtaining information about the composition and structure of vegetation and climate during the Oligocene. The stratigraphic interval extends from late Rupelian to Chattian. The Danismen Formation in the Sevketiye section yielded a palynomorph association with abundant coastal palms (Arecaceae; Lepidocaryoidae), and mangrove pollen (Pelliciera). A similar assemblage from the Kuzu harbour section was also obtained, with minor contributions of mangrove elements Nypa and Acrostichum aureum, Arecaceae type palm, undifferentiated dinoflagellate cysts and microforaminiferal linings. These palynomorph assemblages, combined with the mollusc data, indicate that low-lying coastal environments prevailed. In contrast, the palynomorphs from the Tayfur section represent a non-marine environment lacking mangrove elements, palm trees, dinoflagellate cysts and microforaminiferal linings. The diversity of angiosperm taxa in the Tayfur palynoflora, which form the bulk of the assemblage, indicates terrestrial vegetation. Quantitative palaeoclimate analyses are based on the Coexistence Approach method, and yield over 22 degrees C at the coast as indicated by mangrove elements and palms in the Sevketiye and Kuzu harbour palynofloras. For the Tayfur palynoflora, mean annual temperature ranged between 16.5 and 21.3 degrees C. This indicates a climate cooling, corresponding to the transition from Rupelian to Chattian, and resulted in the pollen changes from mangrove bearing coastal deposits to more inland vegetation.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [106Y104]
dc.description.sponsorshipThis study was supported by a research grant from the Scientific and Technological Research Council of Turkey (TUBITAK Grant Code 106Y104). The assistance provided by Riza Gorkem Ozkay, who took part in field work, is acknowledged. The authors would like thank Dr. Torsten Utescher and anonymous referee for their helpful comments and their constructive criticisms of the manuscript.
dc.identifier.doi10.3906/yer-1201-3
dc.identifier.endpage303
dc.identifier.issn1300-0985
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84874752580
dc.identifier.scopusqualityQ2
dc.identifier.startpage277
dc.identifier.trdizinid146286
dc.identifier.urihttps://doi.org/10.3906/yer-1201-3
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/146286
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22539
dc.identifier.volume22
dc.identifier.wosWOS:000317821900008
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Earth Sciences
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectOligocene
dc.subjectmangrove
dc.subjectpalaeoecology
dc.subjectThrace basin
dc.subjectnorth-west Turkey
dc.titleOligocene vegetation and climate characteristics in north-west Turkey: data from the south-western part of the Thrace Basin
dc.typeArticle

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