Salt dome

A salt dome a is a geologic structure consisting of a deep layer of pure salt. 

Salt domes are used for crude oil and refined product storage by hollowing out a cavity in the salt structure (by pumping water into it) and filling the space with crude or product.

McKinsey uses cookies to improve site functionality, provide you with a better browsing experience, and to enable our partners to advertise to you. Detailed information on the use of cookies on this Site, and how you can decline them, is provided in our cookie policy. By using this Site or clicking on "OK", you consent to the use of cookies.