Definition of oolite in US English:

noun

• 1Limestone consisting of a mass of rounded grains (ooliths) made up of concentric layers.

  Example sentences

  • ‘At Taskent the upper layer of oolite is more resistant but sharply truncated beneath stromatolites of the overlying Gevne Formation.’
  • ‘The sample was taken from a thin limestone lens with phosphatic oolites within the phosphatic greensand.’
  • ‘Greensand, coal, rock salt, coral limestone, oolites, and boulder clays are examples of indicators of depositional environments.’
  • ‘However, in the northeastern area of the outcrop, only the lowermost 0-2 m consist of calcareous sandstone, with oolites, biothermal limestones and crinoidal limestones characterizing the remainder.’
  • ‘In the process of being buried under other sediments, these ooids can fuse into a solid mass of sedimentary rock called oolite.’

  1. 1.1
     another term for oolith