Revisiting the depositional age and provenance characteristics of metasedimentary rocks from the basement units in the Central Pontides (N Turkey): New constraints for tectonic evolution of the southern Black Sea region
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1 May 2024Author
Çimen, OkayAkal, Cüneyt
Cemal Göncüoğlu, Mehmet
ARSLAN, Mehmet
Simonetti, Antonio
Karaoǧlan, Fatih
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Scopus EXPORT DATE: 06 May 2024 @ARTICLE{Çimen2024, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85189822937&doi=10.1016%2fj.jseaes.2024.106134&partnerID=40&md5=de5c2a06bbd0e4752411d2e62fc154f6}, affiliations = {Munzur University, Department of Geography, Tunceli, Turkey; Gümüşhane University, Department of Geological Engineering, Gümüşhane, Turkey; Dokuz Eylül University, Department of Geological Engineering, İzmir, Turkey; Middle East Technical University, Department of Geological Engineering, Ankara, Turkey; Karadeniz Technical University, Department of Geological Engineering, Trabzon, Turkey; University of Notre Dame, Department of Civil and Environmental Engineering and Earth Sciences, Notre Dame, IN, United States; Çukurova University, Department of Geological Engineering, Adana, Turkey; Department of Geological Processes, Institute of Geology, The Czech Academy of Sciences, Prague, Czech Republic}, correspondence_address = {O. Çimen; Munzur University, Department of Geography, Tunceli, Turkey; email: okaycimen@gmail.com}, publisher = {Elsevier Ltd}, issn = {13679120}, language = {English}, abbrev_source_title = {J. Asian Earth Sci.} }Abstract
The pre-Jurassic tectonic evolution of the Central Pontides in northern Turkey is still poorly understood due to the lack of detailed geochemical and geochronological data from the basement units. Therefore, this study reports for the first time combined whole rock geochemistry, trace element data and U-Pb ages for detrital zircons, and Ar-Ar geochronological data from the metasedimentary rocks of the Devrekani Massif, Geme Complex, and the Serveçay Unit to better understand their provenance, depositional age characteristics, and tectonic evolutions. The detrital zircon U-Pb data of metasedimentary units from the Devrekani Massif, Geme Complex, and the Serveçay Unit yield ca. 191, 185 and 298 Ma maximum depositional ages (youngest age peaks), respectively. The Devrekani Massif is dominated by Permo-Carboniferous-aged detrital zircons (67 %), whereas Neoproterozoic and Devonian-aged detrital zircons are more common in the Geme Complex (47 %) and the Serveçay Unit (53 %). These distinct age distributions clearly indicate that the Devrekani Massif may has been deposited in a dissimilar location compared to the Geme Complex and the Serveçay Unit. Furthermore, in contrast to the Devrekani Massif, the source area of the metasedimentary rocks from the Geme Complex is comparable with that of the Serveçay Unit. Lastly, the obtained detrital zircon U-Pb and mica Ar-Ar ages suggest that the Devrekani Massif and the Geme Complex were deposited and metamorphosed during the Early and Middle Jurassic, respectively. The Serveçay Unit was deposited and metamorphosed in the Permian. © 2024 Elsevier Ltd
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266URI
https://www.sciencedirect.com/science/article/pii/S1367912024001299?via%3Dihubhttps://hdl.handle.net/20.500.12440/6218