Use the following to complete the sentences (6 pts): foliated directed pressure

Question

            Use the following to complete the sentences (6 pts):

            foliated                  directed pressure                    heat

            non-foliated           regional                                   thermal

Metamorphism that occurs as a result of the directed pressures associated with mountain building processes or the compression of deeply buried rock is called ____ metamorphism. Metamorphism also occurs when magma is emplaced into existing rock, a process called ____ (also known as contact) metamorphism where _____ is the primary agent of change. A metamorphic rock in which minerals have been re-aligned by _____ into banded layers or fine linear orientations has a _____ texture. When metamorphism changes rocks comprised primarily of a single mineral, the mineral crystals may expand to become more tightly interlocked or fused into a _____ texture.

Explanation / Answer

Metamorphism that occurs as a result of the directed pressures associated with mountain building processes or the compression of deeply buried rock is called (a)regional metamorphism. Metamorphism also occurs when magma is emplaced into existing rock, a process called (b) Thermal (also known as contact) metamorphism where (c) heat is the primary agent of change. A metamorphic rock in which minerals have been re-aligned by (d)pressure into banded layers or fine linear orientations has a (e) foliated texture. When metamorphism changes rocks comprised primarily of a single mineral, the mineral crystals may expand to become more tightly interlocked or fused into a (f)non foliated texture.

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