Benefits of a Mentor. Months after landing a job at a Minneapolis-based public-relations firm, Tameka Davis was still looking for guidance on how to excel at the company and eventually move up the ladder. So she signed up for her employer's mentoring program. The now-26-year-old was taken under the wing of an older co-worker for a year, and the benefits were...
The definition of metamorphic is characterized or formed by changing. An example of something metamorphic is a caterpillar turning into a butterfly; a metamorphic animal. metamorphic. metamorphic.
A metamorphic rock used to be some other type of rock, but it was changed inside the Earth to become a new type of rock. The word metamorphism comes from ancient Greek words for change (meta) and form (morph). The type of rock that a metamorphic rock used to be, prior to metamorphism, is called the protolith. During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids. At advanced stages of metamorphism, it is common for a metamorphic rock to develop such a different set of minerals and such a thoroughly changed texture that it is difficult to recognize what the protolith was.