Which of the following is NOT a common result of regional metamorphism: increase

Question

Which of the following is NOT a common result of regional metamorphism:

increase in porosity and permeability            c) coarsening of grain size

crystallization of new minerals                       d) development of metamorphic foliation

Which of the following magmas crystallizes at the lowest temperature?

rhyolite magma                      c) peridotite magma

basalt magma                         d) andesite magma

Which of the following minerals will chemically weather at the fastest rate?

a) muscovite                           c) quartz

b) K-feldspar                           d) calcite

Explanation / Answer

1.Increase in porosity and permeability

The regional metamorphism pushes rock to deeper level where it is subjected to high pressure and temperature

2. Rhyolite Magma

3. D) Calcite

As calcite are soluble in water.

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