Geology: Earth's Structure and Plate Tectonics
22 Questions
0 Views

Geology: Earth's Structure and Plate Tectonics

Created by
@StatelyTinWhistle9841

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is correct? (Select all that apply)

  • Continental crustal thickness increases with elevation.
  • Continental crust is much thicker than oceanic crust. (correct)
  • Lithosphere is the same as the crust.
  • All of the above
  • A and B but not C. (correct)

    • Which of the following is correct? (Select all that apply)

  • Crust at Michigan is thinner than that at Tibet (~5 km elevation).
  • Crust at Michigan is thinner than that of the Pacific Ocean.
  • Crust at Tibet is thinner than that of the Indian Ocean.
  • A and C but not B. (correct)
  • None of the above.

    • The layers of the Earth from the inside out are:

  • The mantle, core, and crust
  • The crust, core, and mantle
  • The mantle, crust, and core
  • The core, mantle, and crust (correct)

    • Among the following, which killed the most people in the last 100 years?

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

    In plate tectonics, a major plate is:

    <p>A continent-size surface block (oceanic and/or continental) of the Earth.</p> Signup and view all the answers

    The typical thickness of a plate (in plate tectonics) is:

    <p>100 km.</p> Signup and view all the answers

    The boundaries between Earth's crust, mantle, and core are based on:

    <p>All of the above.</p> Signup and view all the answers

    The differences of Earth's interior layers of crust, mantle, and core include:

    <p>All of the above.</p> Signup and view all the answers

    The boundary between Earth's lithosphere and asthenosphere is based on:

    <p>All of the above.</p> Signup and view all the answers

    The division of Earth's interior into lithosphere and asthenosphere is based on:

    <p>Mechanical properties, especially whether the layer may flow.</p> Signup and view all the answers

    Which of the following are plate boundaries? (Select all that apply)

    <p>All of the above.</p> Signup and view all the answers

    Which of the following are plate boundaries? (Select all that apply)

    <p>All of the above.</p> Signup and view all the answers

    At a mid-ocean ridge:

    <p>All of the above.</p> Signup and view all the answers

    There are many earthquakes at:

    <p>All of the above.</p> Signup and view all the answers

    There is abundant volcanic activity at:

    <p>All of the above.</p> Signup and view all the answers

    We infer that continents (or more accurately, plates) are moving based on:

    <p>All of the above.</p> Signup and view all the answers

    In plate tectonics, how many major plates are there?

    <p>7 to 15.</p> Signup and view all the answers

    A mid-ocean ridge is:

    <p>A divergent plate boundary.</p> Signup and view all the answers

    A convergent plate boundary may include:

    <p>All of the above.</p> Signup and view all the answers

    Which of the following is correct? (Select all that apply)

    <p>All of the above.</p> Signup and view all the answers

    A mid-ocean ridge is:

    <p>All of the above.</p> Signup and view all the answers

    Along mid-ocean ridges:

    <p>Both of the above.</p> Signup and view all the answers

    Study Notes

    Earth's Structure

    • Earth's interior is divided into layers: crust, mantle, and core
    • The crust is the outermost layer, thinner than the mantle
    • Continental crust is thicker than oceanic crust
    • The core is mostly iron and is divided into a solid inner core and a liquid outer core
    • The mantle is mostly solid but behaves like a very viscous fluid over long periods

    Plate Tectonics

    • Plates are large sections of the Earth's lithosphere
    • Plates are constantly moving, driven by convection currents in the mantle
    • The boundaries between plates are where most earthquakes and volcanic eruptions occur

    Plate Boundaries

    • Divergent boundaries: Plates move apart, creating new crust (e.g., mid-ocean ridges)
    • Convergent boundaries: Plates collide, resulting in subduction or mountain building (e.g., subduction zones, collision zones)
    • Transform boundaries: Plates slide past each other horizontally (e.g., San Andreas Fault)

    Mid-Ocean Ridges

    • Mid-ocean ridges are underwater mountain ranges where new oceanic crust is created
    • They are characterized by shallow water depths, volcanic activity, and earthquakes
    • The youngest oceanic crust is found at mid-ocean ridges

    Subduction Zones

    • Subduction zones occur where an oceanic plate slides beneath another plate (either oceanic or continental)
    • These zones are marked by deep trenches, volcanic activity, and earthquakes

    Magnetic Anomalies

    • The Earth's magnetic field has reversed many times throughout its history
    • These reversals are recorded in the magnetic stripes found on the ocean floor
    • The pattern of magnetic stripes provides evidence for seafloor spreading

    Earthquakes and Volcanoes

    • Earthquakes are caused by the sudden release of energy in the Earth's crust
    • Volcanoes are openings in the Earth's surface where molten rock, ash, and gases are released
    • The majority of earthquakes and volcanoes occur along plate boundaries
    • Earthquakes are the deadliest natural disaster in recent human history.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Earth 107: Volcan and Earthquakes Question Bank PDF

    Description

    Explore the layers of Earth's interior, from the crust to the core, and understand the mechanisms behind plate tectonics. This quiz delves into plate boundaries, including divergent, convergent, and transform boundaries, alongside the dynamics of mid-ocean ridges. Enhance your knowledge of geological processes and their impact on the Earth's surface.

    More Like This

    Plate Tectonics and Earth's Structure Quiz
    10 questions

    Plate Tectonics and Earth's Structure Quiz

    AccomplishedBixbite avatar
    AccomplishedBixbite
    Plate Tectonics and Earth's Structure
    29 questions

    Plate Tectonics and Earth's Structure

    AccomplishedBixbite avatar
    AccomplishedBixbite
    Earth Structure and Plate Tectonics Quiz
    40 questions

    Earth Structure and Plate Tectonics Quiz

    PatriAgate6518 avatar
    PatriAgate6518
    Earth's Structure and Plate Tectonics
    27 questions

    Earth's Structure and Plate Tectonics

    PreEminentSeries avatar
    PreEminentSeries
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser