One of the mysteries of the English language finally explained.
A dome-shaped structure in sedimentary rocks, formed where a large mass of salt has been forced upward. Such structures often form traps for oil or natural gas.
- ‘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.’
- ‘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.’
- ‘A salt dome in Texas turned into the Spindletop oil bonanza, a serendipity of far-reaching import.’
- ‘Those deposits, known as salt domes are a major dry-land source of bromine today.’
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