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.
Klots are found in different parts of Iran. But the largest of them is located in Kerman province and around the city of Shahdad, and for this reason they are known as Shahdad Klots.