Figure 6: Dukhan Sabkha: a and b is area of shallow salt lake in the northeastern part of the Sabkha, c is Nebkhas and salt resistant plants dominant at the northwestern edges of the Sabkha, d is artificial lake for extracting water in the northern part of the Sabkha. (Note that halite cover the surface of the area in a, and anhydrite appears as nodules and gruel in b).