Minor forms developed on steep slopes - Landforms and Geology of Granite Terrains - page 189

(Fig. 8.16). Most are only a metre or two deep, but in others the floor stands several metres below
the level of the surrounding plain. At the other end of the scale a small depression developed at
Ya rwondutta Rock, on Eyre Peninsula, South Australia, is about 7 m long, less than 2 m wide and
only 300 cm deep ( Figs 8.10a and b).

8.5.2 Origin
Dumanowski (1960) favoured a structural (lithological) origin for scarp-foot depressions.
Certainly, the specific features he described from the Egyptian Desert are eroded in metamorphic

(a)

(b)

Figure 8.16. Scarp-foot depression (a) at Gebel Harhagit, Egypt, (b) around granite nubbin, central

Australia (CSIRO).