Metamorphism

What is a metamorphic rock?

• A metamorphic rock is unchanged from its original state.
• A metamorphic rock is formed from volcanic activity.
• A metamorphic rock is a type of sedimentary rock.
• A metamorphic rock is a type of rock that has been changed from its original form due to heat, pressure, or chemical processes.

Which of the following is not typically a process involved in metamorphism?

• Weathering
• Crystallization
• Sedimentation
• Erosion

In what environment are regional metamorphic rocks most commonly formed?

• In volcanic regions during eruptions.
• In tectonic settings, particularly at convergent plate boundaries.
• In sedimentary basins under low pressure.
• In areas with high surface weathering.

Foliation in metamorphic rocks is caused by:

• Directed pressure and temperature conditions.
• Sedimentary layering effects.
• Cooling of magma.
• Chemical weathering processes.

Which of the following is a foliated metamorphic rock?

• Granite
• Schist
• Basalt
• Limestone

Which of the following pairs correctly matches a metamorphic rock with its protolith?

• Quartzite – Limestone

• Marble – Shale

• Schist – Granite

• Marble – Limestone