
The sabkha (chott) occurs in a shallow groundwater zone related to the underlying regional anticlinal structure. It is located at the downslope end of several oasis springs.
More saline portions of the saltflat did produce small volumes (~21,000 tonnes) of KCl from brine pits dug in 1939, and there is a published reserve for a 15-square km area within the sabkha (chott) of 1.6 million tonnes of KCl.