marble

    Article

    Marble is a metamorphic rock that forms when limestone is subjected to heat and pressure underground, for example during the regional shifting of the Earth's crust or during volcanic activity.

    Photo Credit

     
    "Marble, South Canyon, Mile 31.8, Colorado River, Grand Canyon, circa 1974," photograph by Margaret Eiseman. Margaret Eiseman Collection (48912). Cline Library, Northern Arizona University.

    Term Type
    References

     
    King, Hobart
         2014   Marble. Geology.com http://geology.com/rocks/marble.shtml, accessed
             June 25, 2014.