plutonic metamorphism

plutonic metamorphism

[plü′tän·ik ‚med·ə′mȯr‚fiz·əm]
(geology)
Deep-seated regional metamorphism at high temperatures and pressures, often accompanied by strong deformation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.