Noun
English Wikipedia has an article on:salt domeWikipedia
salt dome (plural salt domes)
(geology) An upwelling of crystalline rock salt and its aureole of deformed sediments.
As it pushed upward, the salt dragged surrounding sediments into salt dome formations, often trapping oil and gas that seeped from the surrounding porous sands. Source: Internet
When the floor of the Dead Sea dropped further due to tectonic forces, the salt mounts of Lisan and Mount Sodom stayed in place as high cliffs (see salt dome ). Source: Internet