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Title: The inherited structure of the Gediz Graben (Aegean Extensional Province, Turkey): insights from the deep geothermal wells in the Alasehir sub-basin
Authors: Gülmez, Fatma
Ercan, Hatice Ünal
Lom, Nalan
Göçmengil, Gönenç
Damcı, Emre
Keywords: Gediz Graben
Menderes Massif
Neogene basins
Western Anatolia
Aegean extensional province
Lycian nappes
Tethyan realm
Geothermal drilling
Central Menderes Massif
Metamorphic Core Complex
Western Anatolia
Tectonic Evolution
2-Stage Extension
Trending Basins
Lycian Nappes
Sw Turkey
Issue Date: 2023
Publisher: Springer
Abstract: Neogene basins/grabens along with exhumed core complexes make up the fundamental components of western Anatolia within the geologic framework of the Aegean Extensional Province. The Neogene basins are divided into two based on their orientation and contrasting lithostratigraphic packages: (1) the NE-SW basins that are dominated by materials either derived from the Menderes Massif and/or Izmir-Ankara-Erzincan suture zone-related units during the Lower Miocene and sedimentation that had mostly ended by the end of the latest Miocene, (2) E-W trending basins that are known to be devoid of Tethyan ophiolitic material and contain Miocene and Plio-Quaternary deposits. The relationship between the two sets of basins has been unclear, with some suggesting that E-W trending grabens are younger than the NE-SW trending grabens. Here, we reported results from the deep (up to 3840 m) geothermal wells from the Alasehir sub-basin of the E-W trending Gediz Graben. Our analysis reveals that the Neogene graben fill is thicker than previously documented and contains ophiolite-derived clastics at its base. We proposed that the Alasehir sub-basin has a similar early Miocene configuration as the Usak-Gure basin and the Gediz Graben represents an inherited structure of the NE-SW trending grabens.
ISSN: 1437-3254
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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