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Denotation vs. Connotation

metamorphic rock

metamorphic rock in Culture

metamorphic rock definition


Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.

Note: Examples are marble, which can be formed from limestone, and slate, which is formed from shale.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Examples from the Web for metamorphic rock
Historical Examples
  • Mī′ca-schist, Mī′ca-slate, a metamorphic rock consisting of alternate layers of mica and quartz.

  • Granite is recognised as an igneous as well as a metamorphic rock.

    Geology James Geikie
  • If mica is a prominent element, the metamorphic rock is easily parted into overlapping, scaly layers.

  • Syenite, like granite, is recognised as an igneous as well as a metamorphic rock.

    Geology James Geikie
  • The mountains along the canyon are all of metamorphic rock, splintered and shivered by too rapid cooling.

    A Summer's Outing Carter H. Harrison
  • From aqueous rock materials, fire has produced a metamorphic rock.

  • A very large proportion of both the quartz and placer mining of North America is in regions occupied by metamorphic rock.

    North America Israel C. Russell
  • In many cases, however, the early history of a metamorphic rock can be deciphered.

    The Elements of Geology William Harmon Norton
  • It is a metamorphic rock derived from either sedimentary or igneous rock, more commonly the former.

    Geology William J. Miller

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