Study

Tectonic Plates

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  • What happens to the lithosphere in convergence?
    The subducting lithosphere will be destroyed by the hot mantle or asthenosphere
  • What happens to the lithosphere at a divergent boundary?
    The magma rises up, cools and forms a new crust
  • What topographic changes are seen at a divergent boundary?
    Rifts and volcanoes
  • What is the curst called if it is formed on land?
    Continental crust
  • The San Andreas Fault in California is an example of an occurrence at what boundary type?
    Transformation Boundary
  • What topographic changes happen at a transformation boundary?
    Cracks in the lithosphere called fault lines and fold mountains
  • The lithosphere is made up of what layers of the earth?
    Crust and upper mantle
  • The asthenosphere is made up of what layers of the earth?
    Mantle
  • At what boundary do two plates come into contact with one another with the denser oceanic plate subducting under another oceanic crust?
    Oceanic vs Oceanic Convergence
  • Name one of the tectonic plates
    Take any appropriate answer
  • Earthquakes are common occurrences at what boundary types?
    Transformation, convergence and divergent
  • What is the crust called if it is formed underwater?
    Oceanic crust
  • What topographic changes happen at a convergent boundary?
    Trenches, mountains and volcanoes
  • The Himalayas (a mountain range bordering Nepal and Tibet) is an example of an occurrence at what boundary type?
    Continental vs continental plate convergence
  • At what boundary do two plates slide past one another in parallel, but opposite directions?
    Transformation Boundaries
  • What is the zone called that is when one plate sinks under the other?
    Subduction zone
  • What determines whether one plate subducts under the other if both crusts are oceanic in convergence?
    The plate that is older is colder and denser, making it sink under the other
  • At what boundary do two plates come into contact with one another with the denser oceanic plate subducting under the continental crust?
    Oceanic vs Continental Convergence
  • The Ring of fire (an arc of volcanoes) is an example of an occurrence at what boundary type?
    Oceanic Vs Oceanic Convergence
  • At what boundary do two plates move away from each other in opposite directions?
    Divergent Boundaries