Sentence Examples

  • Such a rock is typically exemplified by a coarse-grained sandstone or conglomerate, while a limestone may be naturally porous, or, like the Trenton limestone of Ohio and Indiana, rendered so by its conversion into dolomite and the consequent production of cavities due to shrinkage - a change occurring only in the purer limestones.
  • The following groups are recognized: Waterberg Series, Pretoria Series, Dolomite Series, Black Reef Series.
  • The Dolomite Series, known to the Dutch as " Olifants Klip," consists of a bluish-grey magnesian limestone with bands of chert.
  • These follow conformably on the Dolomite series.
  • Many are found as minerals, the more important of such naturally occurring carbonates being cerussite (lead carbonate, PbC03), malachite and azurite (both basic copper carbonates), calamine (zinc carbonate, ZnCO 3), witherite (barium carbonate, BaCO 3), strontianite (strontium carbonate, SrC03), calcite (calcium carbonate, CaC03), dolomite (calcium magnesium carbonate, CaCO 3 MgCO 3), and sodium carbonate, Na 2 CO 3.

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