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salt dome

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Definition of salt dome in English:

noun

A dome-shaped structure in sedimentary rocks, formed where a large mass of salt has been forced upwards. Such structures often form traps for oil or natural gas.
Example sentences
  • Because of their buoyancy, halite beds may deform or rise and drag surrounding rocks, producing salt domes or act as fill or lubrication in geological faults.
  • The ship first drilled in the Gulf of Mexico and in the process managed to prove one of the Doc's pet theories: that there were salt domes in the Gulf and that these were the cap rocks for oil reservoirs.
  • Halite is found in underground deposits known as salt domes, formed when ancient seas dried up and were buried under the earth.

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