Gilgai

Though it wasn′t a heavy storm it was enough to put water in gilgai holes and scatter the horses.

Argilliturbation is manifested within Vertisol profiles and on the surface as gilgai microtopography, with relief exceeding commonly 15 cm (Fig. 10.35).

One of its most remarkable features is its patterns of gilgai. The gilgais are small, almost circular depressions from a few centimetres to as much as 50 cm deep in the plain and several metres across.