Dolerite (noun) Definition, Meaning & Examples

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noun Petrology.
  1. a coarse-grained variety of basalt.
  2. any of various other igneous rocks, as diabase.
  3. any basaltlike igneous rock whose composition can be determined only by microscopic examination.
noun
  1. a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes
  2. any dark igneous rock whose composition cannot be determined with the naked eye
    Dolerite (noun) Definition, Meaning & Examples

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