The mound of debris in the foreground is waste left over from quarrying at a quarry slightly up the slope from this one. This debris is composed mainly of chips removed during quarrying and squaring of quarried material. Around 50-60 % of all the stone extracted at these quarries probably ended up as waste of this sort.
The quarry-face in this quarry is vertical and there are few natural fissures in the rock.
Notes
This is one of the more than seventy individual extraction points which constitute the so-called City Quarries at Aphrodisias, located roughly 2 km north of the city. White and grey marbles were quarried in this area.