Intrusive rock

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Igneous rocks which have invaded a pre-existing rock. Intrusive rocks are formed by magma that has solidified beneath the surface of the Earth.

Synonyms and Related Terms

plutonic; roche intrusive (Fr.); rocha intrusiva (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