Sedimentology and Miocene-Pliocene depositional evolution of the stream-dominated alluvial fan deposits at circum-Sultandağları region

Yalvaç and Ilgın basins surrounding the Sultandağları opened due to orogenic collapse in early Miocene. The NW-SE trending Çakırçal Akşehir Faults, forming boundaries with these basins, caused both opening of uplifting Sultandağları. During Miocene-Pliocene period, alluvial fans fed from developed on basin margins, while lacustrine carbonate clastic depositions occurred basin's interior. Alluvial fan sediments are laterally vertically transitional alternate several times sequence. fans, widespread region, consisting "debris flow", "high density stream flood", "braided river" "meandering deposits. Fan deposits that pass high-energy fluvial facies at margin low-energy towards interior have been interpreted as "stream-dominated deposits". Age data obtained show concurrently feeds flanks. deposition around under control tectonic climatic processes. Tectonism led formation creation source areas. Simultaneously, climate maintained streams be perennial by precipitation, thus proving a continuous sediment supply basins. climate-controlled base-level changes determined quantity carried area, causing regressive or transgressive developments.