The topography of the peninsula is dominated by weakly cemented, wind blown, calcareous dune sand (aeolianite; sometimes called 'miliolite
') of the Pleistocene Ghayathi Formation.
The zeugen consist partly of a cross-stratified limestone which is of aeolian origin (an aeolianite locally known as 'miliolite
The core of the island is formed of Pleistocene carbonate aeolianites (wind-blown carbonate sands locally known as 'miliolite
') displaying large scale, high-angled cross-bedding (Figs.
Outcrops of Pleistocene limestones composed mainly of aeolianites (cemented wind blown carbonate sands locally known as 'miliolite
') occur at the northwestern and northeastern extremities of the island (Fig.