Metamorphic Rocks

What type of rocks are shown in the image?

• Igneous Rocks

• Sedimentary Rocks

• Metamorphic Rocks

• Fossil Rocks

The three types of metamorphism are as follows:

• Contact metamorphism, regional metamorphism, and dynamic metamorphism

• Contact metamorphism, hydrothermal metamorphism, and burial metamorphism

• Regional metamorphism, shock metamorphism, and dynamic metamorphism

• Contact metamorphism, shock metamorphism, and burial metamorphism

What occurs when a magma chamber intrudes the surrounding rock?

• Contact Metamorphism

• Erosion

• Sedimentation

• Weathering

What geological process is depicted in the diagram titled 'Regional Metamorphism'?

• Volcanic Eruption

• Regional Metamorphism

• Earthquake

• Erosion

Hydrothermal metamorphism refers to the chemical and physical changes that occur in rocks as a result of the interaction with high-temperature fluids.

• It is the process by which rocks undergo changes due to high-temperature hydrothermal fluids circulating through them.

• It is the weathering of rocks due to exposure to cold water.

• It is the formation of sedimentary rocks by deposition of sediments in water.

• It is the erosion of rocks by biological activity.

Which of the following processes is involved in hydrothermal metamorphism?

• Erosion

• Sedimentation

• Hot fluids passing through the rock

• Weathering

What is recrystallization?

• A) A process of melting rocks

• B) A metamorphic process that occurs under intense temperature and pressure

• C) A process of cooling rocks

• D) A process of erosion

Fill in the blank: During recrystallization, the basic composition remains the ________.

• same

• different

• altered

• changed

What causes metamorphism at spreading centers according to the diagram?

• Cold, mineral-poor waters

• Very hot, element-rich waters

• Magma cooling

• Earthquakes

The process of metasomatism as depicted in the diagram is the chemical alteration of a rock's composition due to fluid infiltration.

• Chemical alteration of rock by fluid infiltration

• Physical erosion of rock

• Metamorphism due to pressure and temperature

• Deposition of sediments