Definition of oil shale in English:

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oil shale

noun

[mass noun]
Fine-grained sedimentary rock from which oil can be extracted.
Example sentences
  • Beneath the main White Stone Band there is an interval of mudstone and bituminous mudstone with a further thicker (10 cm, lower oil shale) oil shale.
  • Gibling interpreted the assemblage of mudstone, coal and oil shale in the Cenozoic basins of Thailand as the product of deposition in environments where lake levels fluctuated.
  • Carbonaceous shale, including oil shale, occurs in beds of clayey to silty mudrock from 0.3 to 3 m thick.

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