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  1. Oxford American Dictionary

    salt dome

    • IPA[sôlt dōm]
    • n.
      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.

    • noun: salt dome, plural noun: salt domes

    • 更多解釋

    salt dome

    • n.
      a dome-shaped structure in sedimentary rocks, formed where a large mass of salt has been forced ...

    Oxford Dictionary