Extrusive rock

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Description

Igneous rocks that come to the surface of the earth in a molten condition.

Synonyms and Related Terms

volcanic rock; rocha extrusiva (Port.)

Sources Checked for Data in Record

  • Submitted information Comment: José Delgado Rodrigues, LNEC, 2009.
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971

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