Geology: Granite vs Basalt Comparison
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Questions and Answers

What is one distinguishing feature of granite compared to basalt?

  • Granite primarily forms from underwater volcanic activity.
  • Granite has a higher iron content.
  • Granite is formed under higher pressure conditions.
  • Granite typically has larger crystals. (correct)
  • In what type of geological environment is basalt typically formed?

  • Subduction zones.
  • In mountain ranges.
  • Continental plate boundaries.
  • At oceanic ridges. (correct)
  • What characteristic shape is associated with basalt formations under the sea?

  • Columnar joints.
  • Sheet structures.
  • Pillow shape. (correct)
  • Dome shape.
  • Which process describes how granite typically forms?

    <p>Slow crystallization of magma beneath the Earth's surface.</p> Signup and view all the answers

    Which rock type would most likely be found at a subduction zone?

    <p>Andesite.</p> Signup and view all the answers

    Study Notes

    Applying Knowledge

    • Two thin slices, one of granite and one of basalt, are presented for comparison.

    Comparing Structures

    • Granite and basalt are different rock types.
    • Granite has large crystals, while basalt has smaller, more uniform crystals.
    • The different textures reveal different formation processes.

    Formation and Location

    • Granite forms deep within the Earth.
    • Basalt forms closer to the Earth's surface.
    • Basalt forms underwater which explains its distinct pillow like structure.

    Marine Rock

    • The document shows a marine rock.
    • The rock has a pillow shape.
    • The rock formation occurs at specific locations within the Earth's crust.

    Andean Rock

    • The document shows an andesitic rock.
    • The andesitic structure is explained.

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    Description

    Explore the differences between granite and basalt in this quiz. Learn about their formation processes, crystal structures, and the specific locations where they can be found. Test your knowledge on marine and andesitic rocks as well!

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