Deep long rift canyon with cleft steep rock walls and high cliff gorge. Escarpment cliffs weathering erosive activity river geologic time scales cut volcanic layer layers tendency sediments erosion washout denudation slot canyons narrow land landslide landslip slide slip slumping geology topography karst valley large brown mainland continent bedrock stony rocky stone escarpments slope separates elevation scarp cuesta hill ridge Peristrema Ihlara Aksaray Turkey cappadocia sedimentary horizontal scarpland dip topographic geomorphic cracked broken scree rockfall talus deposits floor aerial fly flying drone overhead over above water creek brook stream tree arid UHD 4K 3840X2160