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

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Questions and Answers

How are igneous rocks formed?

  • By the cooling of molten magma or lava near, at, or below the Earth's surface (correct)
  • By the transformation of preexisting rocks
  • By the lithification of inorganic and organic sediments
  • By heat and pressure deep below the surface of the earth

    • What are the primary causes of metamorphism?

  • Fold, fracture, and melt
  • Magma, lava, and tectonic plates
  • Lithification, inorganic sediments, and chemically active fluids
  • Heat, pressure, and chemically active fluids (correct)

    • What can occur during metamorphism?

  • Cooling and solidification
  • Lithification and sedimentation
  • Formation of new sedimentary rocks
  • Partial melting to a viscous state and flow (correct)

    • 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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    Description

    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.

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