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Age of the Alaşehir graben (West Turkey) and its tectonic implications

Gürol Seyítoğlu, Barry C. Scott

Open publisher page 107 citations

Abstract

The Alasehir graben is one of the main E– W (sensu lato) trending structures which developed under Late Cenozoic N– S extensional tectonics in west Turkey. The age of this graben is accepted broadly as Mio-Pliocene, but no specific data is available. An Eskihisar sporomorph association (middle Burdigalian– middle Serravallian, 20– 14 Ma) has been determined from the lower part of the graben-fill, demonstrating that its age of initiation is Early Miocene. When this result is taken into account with the similar ages of the Büyük Menderes graben and the adjacent NE– SW trending Gördes basin, it is evident that these E– W and NE– SW trending graben/basins developed together during the Early Miocene.

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What this paper is about

The Alasehir graben is one of the main E– W (sensu lato) trending structures which developed under Late Cenozoic N– S extensional tectonics in west Turkey. The age of this graben is accepted broadly as Mio-Pliocene, but no specific data is available. An Eskihisar sporomorph association (middle Burdigalian– middle Serravallian, 20– 14 Ma) has been determined from the lower part of the graben-fill, demonstrating that its age of initiation is Early Miocene. When this result is taken into account with the similar ages of the Büyük Menderes graben and the adjacent NE– SW trending Gördes basin, it is evident that these E– W and NE– SW trending graben/basins developed together during the Early Miocene.

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Available abstract

The Alasehir graben is one of the main E– W (sensu lato) trending structures which developed under Late Cenozoic N– S extensional tectonics in west Turkey. The age of this graben is accepted broadly as Mio-Pliocene, but no specific data is available. An Eskihisar sporomorph association (middle Burdigalian– middle Serravallian, 20– 14 Ma) has been determined from the lower part of the graben-fill, demonstrating that its age of initiation is Early Miocene. When this result is taken into account with the similar ages of the Büyük Menderes graben and the adjacent NE– SW trending Gördes basin, it is evident that these E– W and NE– SW trending graben/basins developed together during the Early Miocene.

Key concepts: Graben, Geology, Tectonics, Extensional tectonics, Extensional definition, Cenozoic, Half-graben, Structural basin

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Age of the Alaşehir graben (West Turkey) and its tectonic implications — Research Paper | ScholarLens