Metamorphic Rocks and the Rock Cycle Quiz
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Metamorphic Rocks and the Rock Cycle Quiz

Test your knowledge about metamorphic rocks and the rock cycle with this quiz. Explore how metamorphic rocks are formed and their role in the rock cycle.

Created by
@HottestPointOfView

Questions and Answers

How are igneous rocks formed?

By the cooling of molten magma or lava near, at, or below the Earth's surface

What are the primary causes of metamorphism?

Heat, pressure, and chemically active fluids

What can occur during metamorphism?

Partial melting to a viscous state and flow

What changes during metamorphism?

<p>Appearance, mineralogy, and sometimes chemical composition</p> Signup and view all the answers

What intensities does metamorphism occur along?

<p>Low-grade to high-grade temperature and compressional forces</p> Signup and view all the answers

How are sedimentary rocks formed?

<p>By the lithification of inorganic and organic sediments</p> Signup and view all the answers

What type of metamorphism occurs when rocks are subjected to both heat and pressure on a regional scale?

<p>Regional metamorphism</p> Signup and view all the answers

What are the main sources of heat involved in metamorphism?

<p>Heat transferred during contact metamorphism from magma or igneous intrusions</p> Signup and view all the answers

What type of metamorphism occurs when rocks are intruded by magma, resulting in primarily temperature changes?

<p>Contact metamorphism</p> Signup and view all the answers

Under what conditions does dynamic metamorphism occur?

<p>Under extreme pressure very rapidly</p> Signup and view all the answers

What occurs with igneous activity and the presence of water during contact metamorphism?

<p>Chemical changes to the parent rock</p> Signup and view all the answers

What provides energy for chemical reactions to proceed during metamorphism?

<p>Temperature</p> Signup and view all the answers

What two high-pressure minerals are commonly identified in impact craters formed by meteorite collisions?

<p>Coesite and stishovite</p> Signup and view all the answers

What is the result of body force during metamorphism?

<p>Equal forces in all directions</p> Signup and view all the answers

Study Notes

Igneous Rocks

  • Igneous rocks are formed through the cooling and solidification of magma or lava.

Metamorphism

  • Primary causes of metamorphism: heat, pressure, and chemically active fluids.
  • During metamorphism: mineral composition, structure, and texture of rocks can change.
  • Changes during metamorphism: mineral recrystallization, phase changes, and neocrystallization.
  • Metamorphism occurs at varying intensities: low-grade, high-grade, and shock metamorphism.

Sedimentary Rocks

  • Sedimentary rocks are formed through the accumulation, compression, and cementation of sediments.

Types of Metamorphism

  • Regional metamorphism: occurs when rocks are subjected to both heat and pressure on a regional scale.
  • Contact metamorphism: occurs when rocks are intruded by magma, resulting in primarily temperature changes.
  • Dynamic metamorphism: occurs under high-pressure and high-temperature conditions, typically during mountain building.

Heat Sources and Energy

  • Main sources of heat involved in metamorphism: Earth's internal heat, radioactive decay, and tectonic activity.
  • Energy for chemical reactions during metamorphism is provided by: heat, pressure, and chemical potential.

Impact Craters and Minerals

  • High-pressure minerals commonly identified in impact craters formed by meteorite collisions: coesite and stishovite.

Body Force

  • Result of body force during metamorphism: folding and deformation of rocks.

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