Dukhan Sabkha

[4] The sabkha is fed by seawater from the Bay of Zekreet, north by approximately 3 kilometres (1.9 mi).

[2] Among the reasons for this include the intrusion of seawater, a prevailing desert climate and salt deposition from sediment runoff.

[3] The soil lacks nutrients of any substantial quantities except for sodium chloride and calcium.

Here, they are described as mainly comprising brownish-grey wind-blown sand underneath halite crystals up to 2 metres (6.6 feet) thick.

The chemical breakdown of these deposits is shown to be 33% anhydrite, 19% halite, 10% gypsum, 14% dolomite and 18% quartz.