Metamorphism2

What is one of the factors that drives metamorphism?

• Decreased pressure

• Increased pressure

• Decreased temperature

• Increased temperature

What type of pressure increases with depth?

• Lithostatic pressure

• Differential pressure

• Compressive pressure

• Shear pressure

What type of stress is usually a result of plate tectonics?

• Compressive stress

• Shear stress

• Tensile stress

• Hydrostatic stress

What are rocks confined to greater pressures typically denser and recrystallize into?

• Low density minerals

• Medium density minerals

• High density minerals

• Amorphous minerals

What does differential stress produce in rocks?

• Foliation

• Fractures

• Vesicles

• Concretions

What does foliation mean in the context of rocks?

• Cracks in the rock

• Smooth texture

• Layers in the rock

• Round shape

What does foliation start at?

• Atomic level

• Molecular level

• Macroscopic level

• Planetary level

What is the root word of foliation related to?

• Flowers

• Leaves

• Rocks

• Water

What is the texture called when rocks have layers?

• Foliation

• Granulation

• Crystallization

• Erosion

What is the texture called when rocks have layers?

• Foliation

• Granulation

• Crystallization

• Erosion