Geology having undergone changes of mineralogy and texture imposed on it by pressure and temperature in the Earth's interior.

a rock (sedimentary, igneous or metamorphic) which has undergone alteration by extreme heat and/or pressure thereby altering it's physical properties.

Metamorphic is one of three types of rock. Metamorphic rock is rock whose minerals and texture have been changed by high temperatures, water, and pressure.

Rocks that are changed over time by temperatures and pressures into different kinds of rocks.

rock - a rock whose original mineralogy, texture, or composition has been changed by the effects of pressure, temperature, or the gain or loss of chemical components

Any rock formed from pre-existing rocks within the Earth's crust by changes in temperature and pressure and by chemical action of fluids.

Stone altered in appearance, density, crystalline structure, and in some cases, mineral composition by high temperature, intense pressure or both. Includes slate, quartzite and marble.

(met'-a-mor-phic) A preexisting rock or mineral that undergoes mineralogical, chemical, and/or structural changes while in the solid state in response to marked changes in temperature, pressure, shearing stress, and chemical environment. This generally occurs at depth in the Earth's crust during contact metamorphism, continental collision or subduction. Metamorphic rocks are one of the three main classes of rocks, the others being igneous and sedimentary.

A rock formed when other rocks re-crystallize in response to elevated temperature or pressure.

These are rocks within the Earth?s crust which have been altered by heat, pressure or chemically active fluids.

describes any rock derived from pre-existing rocks in response to large changes in temperature, pressure, or other environmental factors

in medical nanorobotics, capable of adopting multiple physical configurations via smooth changes from one configuration to another.

A metamorphic (changed) rock is produced by subjecting the original material to one or more of the following; high pressure, high temperature, and/or chemical rearrangement. Metamorphic rock may be heated to high temperatures, but never melted (else it becomes an igneous rock). Normally, metamorphism is produced by the weight (pressure) of thick overlying deposits, magmatic heating, tectonic processes (subduction), and/or the presence of water.

a rock which has been altered due to pressure and/or temperature.

any rock that has been altered by mineralogical and/or structural changes by heat, pressure, chemical environment, and movement (e.g. quartzite, slate, marble).

Rock formed by recrystalization of igneous or sedimentary rock under great pressure or heat.

any rock derived from pre-existing rocks by mineralogical, chemical and/or structural changes; process of metamorphism

Any rock formed from a pre-existing rock by application of heat and pressure. For example, quartzite, slate, schist, or gneiss.

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.

of or relating to metamorphosis (especially of rocks); "metamorphic stage"; "marble is a metamorphic rock that takes a high polish"

characterized by metamorphosis or change in physical form or substance

changed; usually by heat or pressure to a different form but the same composition

Formed by the alteration of a previously-existing material. Rocks of this type may have originated as either sedimentary or igneous rocks that were later altered by high temperature or high pressure. These are often found in subduction zones and other areas where the crust is being deformed and/or heated.

A rock derived from pre-existing rock as the result of metamorphism.

Rocks that have "changed form" from another type due to heat and/or pressure.

Pre-existing rock, changed by pressure or temperature.

1) Involving physical transformation; as a metamorphic potion. 2) Pertaining to metamorphosis. 3) Geol. Of, pert. to, produced by, or exhibiting metamorphosism; - esp. of rocks.

The mineralogical, chemical and structural adjustment of solid rocks to physical and chemical conditions which have generally been imposed at depth below the surface zones of weathering and cementation.

a rock type that is formed by structural and chemical changes to pre-existing rocks. The changes most commonly occur in response to differences in pressure and temperature, e.g., marble is a metamorphic rock formed from the re-crystallization of limestone.

rocks which have been considerably altered from their original composition and structure by exposure to both pressure and heat, deep within the Earth's crust; from Latin via Greek meta-morphe 'form-changing'.

One of the three main classes of rock (igneous, sedimentary, and metamorphic), which has been altered in appearance, density, or crystalline structure by heat or pressure into a different type of rock. Slate and marble are metamorphic rocks used in construction. Example: Black Slate

A pronounced change in the constitution of rock effected by pressure, heat, and water that results in a more compact and highly crystalline condition.

Rocks that have recrystallized in a solid state as a result of changes in temperature, pressure and chemical environment.

rocks formed in the solid state in response to pronounced changes of temperature, pressure, and chemical environment.

Changed by heat and/or pressure and thereby having different properties. For example, a soft clay may be metamorphosed to a hard slate.

(met-a-mor´-phic) Any rock derived from pre-existing rocks by mineralogical, chemical, and/or structural changes, essentially in the solid state, in response to marked changes in temperature, pressure, shearing stress, and chemical environment, generally at depth in the earth's crust.

Rocks which have been modified in composition or texture by heat and/or pressure.

Produced by a change in form.

Rock that has been derived from pre-existing rocks, essentially in the solid state, in response to changes in temperature, pressure, shearing stress, and chemical environment.

rocks which have been changed by metamorphism. Slate, schist and gneiss are examples of metamorphic rocks. Fossils are usually destroyed by metamorphism.

(adj) Rock produced by changes in the original material affected by pressure, heat and water that result in a more compact, crystalline and durable condition.

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

origin changed from a different mineral Marble

Any rock derived from pre-existing rocks by mineralogical, chemical, and/or structural changes. One of the three principal rock types, along with sedimentary* and igneous*.

Affected by physical, chemical, and structural processes imposed by depth in the earth's crust.

Rock which has been changed into present state after being subjected to heat and pressure fromthe crust, or chemical alteration.

Pertaining to rocks, which have formed in the solid state in response to pronounced metamorphism.

changed in structure by heat, moisture, and pressure. Slate is a metamorphic rock that is formed from shale, a sedimentary rock. [AHDOS

Formed through the processes involved in metamorphism, which include deep burial, exposure to high temperatures and pressures, and interactions with hydrothermal fluids. Metamorphic rocks are generally considered to have a parent rock, or protolith, which can be any rock type. The minerals and textures that are produced through metamorphism are indicative of both the protolith and the metamorphic environment.