Look up: Metamorphism

1. 
   metamorphism
   n. The process of altering the chemical or mineralogical composition of a rock through different amounts of heat and pressure below the surface of the Earth; metamorphose- v; metamorphic - adj.
   Found on http://www.ucmp.berkeley.edu/glossary/gl
   
   
2. 
   metamorphism
   changes in the structure and texture of snow grains which result from variations in temperature, migration of liquid water and water vapor, and pressure within the snow cover.
   Found on http://nsidc.org/cgi-bin/words/topic.pl?
   
   
3. 
   Metamorphism
   Metamorphosis require heat, pressure and time and is an extension of lithification, but it can occur on any rocks type (including metamorphic rocks). There is a continuum of type from heat dominated (marble) to pressure dominated (blueschist). Metamorphism is ranked in terms of a grade. A high grade metamorphic rock is a gneiss, which has undergone intense heat and pressure. It is important to note metamorphism occurs in the solid state - there is no melting. If the rock starts to melt it is called a migmatite (Mixed IGneous and metamorphic rock).
   Found on http://www.geologyrocks.co.uk/glossary/l
   
   
4. 
   metamorphism
   [n] - change in the structure of rock by natural agencies such as pressure or heat of introduction of new chemical substances
   Found on http://www.webdictionary.co.uk/definitio
   
   
5. 
   Metamorphism
   Metamorphic rocks are produced by the alteration of all types of rocks in the solid state under high temperatures and/or pressures.
   Found on http://www.quartznall.co.uk/glossery.htm
   
   
6. 
   Metamorphism
   The change in the character of a rock. Usually as a result of increasing temperature and/or pressure.
   Found on http://www.digitalstroud.co.uk/glossary.
   
   
7. 
   Metamorphism
   The process by which rocks are changed by heating and / or squashing. As rocks are buried over millions of years, they are exposed to heat and pressure from the overlying rocks and from movements within the Earth's crust. This causes changes in their properties. The heat can make the minerals which make up the rock recrystallise, often in distinct layers or bands. Metamorphism can occur where two of the rigid crustal plates making the Earth's surface collide, or where a magma rising through the Earth's crust bakes the rocks surrounding it
   Found on http://www.sedgwickmuseum.org/education/
   
   
8. 
   metamorphism
   the process by which mineralogical and chemical changes take place in the solid state in pre-existing sedimentary or igneous rocks as a response to the imposition of new physical or chemical conditions. Metamorphic changes take place at temperatures ranging from 100oC to those in excess of 600oC, when rocks begin to melt Category: Electrical engineering and energy
   Found on http://www.mijnwoordenboek.nl/definition
   
   
9. 
   Metamorphism
   Met`a·mor'phism noun (Geol.) The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc., as in the change of sedimentary limestone to marble. Murchison.
   Found on http://www.encyclo.co.uk/webster/M/56
   
   
10. 
    metamorphism
    <geology> The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc, as in the change of sedimentary limestone to marble. ... Source: Websters Dictionary ... (01 Mar 1998) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
11. 
    metamorphism
    noun change in the structure of rock by natural agencies such as pressure or heat of introduction of new chemical substances
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
12. 
    Metamorphism
    `Metamorphism` can be defined as the solid state recrystallisation of pre-existing rocks due to changes in heat and/or pressure and/or introduction of fluids i.e without melting. There will be mineralogical, chemical and crystallographic changes. Metamorphism produced with increasing pressure and temperature conditions is known as `prograde metamorphism`. Conversely, decreasing temperatures and pressure characterize `retrograde metamorphism`.
    Found on http://en.wikipedia.org/wiki/Metamorphis
    
    
13. 
    Metamorphism
    • (n.) The state or quality of being metamorphic; the process by which the material of rock masses has been more or less recrystallized by heat, pressure, etc., as in the change of sedimentary limestone to marble.
    Found on http://thinkexist.com/dictionary/meaning
    
    
14. 
    metamorphism
    mineralogical and structural adjustments of solid rocks to physical and chemical conditions differing from those under which the rocks originally ... [9 related articles]
    Found on http://www.britannica.com/eb/a-z/m/78
    
    
15. 
    Metamorphism
    Process that creates metamorphic rocks.
    Found on http://www.physicalgeography.net/physgeo
    
    
16. 
    metamorphism
    metamorphism, in geology, process of change in the structure, texture, or composition of rocks caused by agents of heat, deforming pressure, shearing stress, hot, chemically active fluids, or a combination of these, acting while the rock being changed remains essentially in the solid state. Theoreti...
    Found on http://www.infoplease.com/ce6/sci/A08328