salt dome


nounGeology.
  1. a domelike rock structure that is formed beneath the earth's surface by the upward movement of a mass of salt, may reach thousands of feet in vertical extent, and is more or less circular in plan: often associated with oil and gas pools.

Origin of salt dome

1
First recorded in 1905–10

Words Nearby salt dome

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for salt dome

salt dome

noun
  1. a domelike structure of stratified rocks containing a central core of salt: formed by the upward movement of a salt deposit

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