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Melting and solidification are the processes that must occur for a rock to change into igneous rock.
What processes must occur to produce an igneous rock
something.
As the degree of hydration decreases in a rock undergoing metamorphosis, certain minerals cannot exist. New minerals then form that do not require water for their formation. This environment of heat, pressure, and lack of water is necessary for the formation of certain minerals.
Limestone can occur as a bioclastic or a chemical sedimentary rock.
•reaction of rock/minerals with water •The ultimate fate of all surface rocks •Contrast with physical weathering •Hydration •Hydrolysis •Dissolution •Carbonation •Biological •Redox
Norman Reedus
Water becomes part of the chemical structure. Resulting mineral is weaker, and easier to physically weather than starting rock. Opposed to Hydration which is physical expansion. Most commonly promoted by acid KAlSi3O8 + H2O > Al2Si2O5(OH)4 + K+ + H4SiO4
hot and wet
Hydration
Hydration
Hydration
Hydration
Hydration
This chemical process is called hydration.
Hydration and erosion of the surface.
clay is formed by weathering( hydrolysis,decomposition and hydration) of igneous rock which has feldspar as its major component.