One plate tectonic process that causes very widespread metamorphism is ____________________. Fill in the blank(s) with the appropriate word(s)
subduction
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What will be an ideal response?
Initial temperature, the size of the intrusion, the fluid content of the magma, and the nature of the country rock are important factors in ____ metamorphism
A)fault B)contact C)divergent D)convergent E)conductive
Volcanoes form above subduction zones because ________.
A) the lithosphere thickens above the subducting lithosphere and causes volcanoes to form
B) the subducting lithosphere melts as it descends and the magma rises to form volcanoes
C) water is squeezed out of the subducting slab and the water triggers melting of the overlying asthenosphere
D) the asthenosphere is displaced by the subducting lithosphere and rises to the surface to form volcanoes