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.