Akademik Veri Yönetim Sistemi
Turkish Journal of Earth Sciences, cilt.34, sa.1, ss.23-46, 2025 (SCI-Expanded)
In western Anatolia, to the south of the İzmir–Ankara Suture, the Menderes Massif, Cycladic Blueschists, Afyon Zone, and Bornova Mélange form the main tectonic belts from bottom to top structurally. In the Akhisar region, the Akhisar Nappe consists of the Hasköy Formation below and the Görenez Limestone above. The Hasköy Formation is composed of a metaclastic sequence with metarhyolite intercalations (237.4 ± 1.1 Ma, zircon LA-ICP-MS) and recrystallized limestone lenses, and it gradually passes upward into Late Norian–Early Jurassic Görenez Limestone. New radiogenic data from metarhyolites of the Hasköy Formation and fossil determinations from recrystallized limestones of the Görenez Limestone show that the age of the Akhisar Nappe ranges from early Late Triassic to Early Jurassic. Along the contact between the Akhisar Nappe and the Menderes Massif, the linear fabric and associated asymmetric structures in the mylonitic fault zone indicate a top-NE shear sense. Correlation between the internal stratigraphy of the Akhisar Nappe and the Mesozoic part of the Afyon Zone sequences in its eastern part indicates that the Akhisar Nappe is the western continuation of the Afyon Zone.