Kaluts are natural features that occur due to environmental erosion in sedimentary mountains or hills of desert areas. This erosion can be due to wind or due to rain and running water in the riverbed.
Various theories have been proposed for this phenomenon, the most likely of which is the increase in ground pressure due to the presence of hydrocarbon gases.
Salt domes can be seen in different parts of southern Iran. One of the important examples is Qeshm salt dome. Such salt domes can also be seen on the island of Hormuz.