Having been structurally altered as a result of, or resulting from, exposure to intense heat and/or pressure (at the contact zone between colliding plates, for example)
A type of rock that results when a sedimentary or an igneous rock is exposed to pressures, temperatures and chemical processes that are severe enough to significantly alter the rock
adj describes a rock formed by solid-state alteration of a previous rock by pressure and heat over a long period of time; one of the three rock types with igneous and sedimentary
Pertaining to, produced by, or exhibiting, certain changes which minerals or rocks may have undergone since their original deposition; especially applied to the recrystallization which sedimentary rocks have undergone through the influence of heat and pressure, after which they are called metamorphic rocks
characterized by metamorphosis or change in physical form or substance of or relating to metamorphosis (especially of rocks); "metamorphic stage"; "marble is a metamorphic rock that takes a high polish
rocks that are created by the process where rocks are altered in composition, texture, or internal structure by extreme heat, pressure, and the introduction of new chemical substances - BACK>>
characteristic of, pertaining to, or changed by metamorphism; any alteration in composition, texture, or structure of rock masses caused by great heat or pressure
One of the three types of rocks, these rocks were 'changed' into a more compact 'form' Sedimentary and Igneous rocks can become a metamorphic rock because of heat and pressure More info -
Rock produced by changes in the original material affected by pressure, heat and water that result in a more compact, crystalline and durable condition
One of the three basic categories into which rocks can be classified, of which the other two are sedimentary and igneous Metamorphic rocks are those changed in composition, mineral content, texture, or structure by the application of heat or pressure; they originally may have been sedimentary, igneous, or other metamorphic rocks
Having been structurally altered as a result of or resulting from, exposure to intense heat &/or pressure (at the contact zone between colliding plates, for example)
Rock in which the original mineralogy, texture, or composition has changed due to the effects of pressure, temperature, or the gain or loss of chemical components