The Zagros Mountains, located in southwestern Iran, is a geological wonder formed by the collision of the Eurasian Plate and the Arabian Plate. It is a geological phenomenon in which the salt layer flows upward under pressure deep underground during geological time, forming a dome shaped structure. The formation of salt domes is closely related to the sedimentary environment and tectonic history of the region, and is an important component of oil production in the Persian Gulf. Salt domes are formed by the upward flow of low-density salt layers under pressure in underground rock formations, which bend and cover the rock layers. As erosion progresses, the surrounding softer rocks are removed, revealing salt domes.