资料来源 : pyDict

粗粒玄武岩,辉绿岩

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Dolerite \Dol"er*ite\, n. [Gr. ? deceptive, because easily
   confounded with diorite.] (Petrography)
      (a) A dark, crystalline, igneous rock, chiefly pyroxene
          with labradorite.
      (b) Coarse-grained basalt.
      (c) Diabase.
      (d) Any dark, igneous rock composed chiefly of silicates
          of iron and magnesium with some feldspar. --
          {Dol`er*it"ic}, a.

Dolerite \Dol"er*ite\, n. [Gr. ? deceitful; because it was
   easily confounded with diorite.] (Geol. & Min.)
   A dark-colored, basic, igneous rock, composed essentially of
   pyroxene and a triclinic feldspar with magnetic iron. By many
   authors it is considered equivalent to a coarse-grained
   basalt.