Lutetian-Bartonian (Middle Eocene) micropalaeontology, biostratigraphy and palaeoecology of the Mengen Coal Basin, Northwest Turkiye (Turkey)

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dc.contributor.authorDurak, Sariye Duygu
dc.contributor.authorAkkiraz, Mehmet Serkan
dc.contributor.authorOzgen-Erdem, Nazire
dc.contributor.authorNazik, Atike
dc.contributor.authorYagmurlu, Fuzuli
dc.contributor.authorSinanoglu, Derya
dc.date.accessioned2025-05-04T16:47:07Z
dc.date.available2025-05-04T16:47:07Z
dc.date.issued2025
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThis study focuses on the upper Lutetian-lower Bartonian Tokmaklar Formation in the Mengen Basin of Northwest Turkiye (Turkey), examining various aspects such as biostratigraphy, palaeoecology, and isotope data (S18O and S13C), providing insights into the geological history and environmental conditions during this interval. Moreover, the study incorporates coal petrography on four samples to explore a potential correlation between the coalification process and the preservation of palynomorphs. The formation is informally divided into two distinct categories: a coal-bearing sequence positioned at the base of the formation and a coal-free sequence above it. However due to dense vegetation and soil cover in the area, the availability of suitable outcrops for measured sections and obtaining samples is severely limited. Therefore, we relied on drilling data from Turkish Coal Enterprises (TCE) for the purpose of coal exploration, as well as two partial sections (Ender and C,orak) from underground mining. Microapalaeontological evidences involving benthic foraminiferans, ostracods, and palynomorphs, along with isotope data (S18O and S13C), suggest that the Tokmaklar Formation was deposited as a result of a local transgressive process during the late Lutetian-early Bartonian. Furthermore, palynological data, particularly the existence of mangroves such as Nypa, lepidocaryoid palm and Acrostichum aureum, coupled with quantitative palaeoclimate analysis, the negative S18O values, and the lower S13C values indicate a warm, probably tropical climate under high rainfall. (c) 2024 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
dc.description.sponsorshipScientific Research Projects of Kutahya Dumlupinar University (BAP) [2015-79]
dc.description.sponsorshipThis study was supported by a research grant from the Scientific Research Projects of Kutahya Dumlupinar University (BAP Grant Code 2015-79). The authors thank the Cukurova University, Central Laboratory Management and Dr. Deniz Kadir Takc & imath; for taking Scanning Electron Microscope photographs. We thank Ahmet Yigitalp who helped us for the field study. The authors would like to thank Prof. Dr. Dimiter Ivanov and an anonymous referee for helpful comments and suggestions.
dc.identifier.doi10.1016/j.palwor.2024.07.003
dc.identifier.issn1871-174X
dc.identifier.issn1875-5887
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85216122823
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.palwor.2024.07.003
dc.identifier.urihttps://hdl.handle.net/20.500.12418/35466
dc.identifier.volume34
dc.identifier.wosWOS:001413995500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPalaeoworld
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250504
dc.subjectPalynology
dc.subjectEocene
dc.subjectMengen Basin
dc.subjectTurkiye
dc.subjectMangrove
dc.titleLutetian-Bartonian (Middle Eocene) micropalaeontology, biostratigraphy and palaeoecology of the Mengen Coal Basin, Northwest Turkiye (Turkey)
dc.typeArticle

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