Earth And Space Science (3rd Quarter)

Cards (22)

  • A natural opening of the earth where molten rocks, hot gases, smoke and ash are rejected from the earth's surface
    Volcano
  • Highest point of the apex of a volcano
    Summit
  • A surface of which one end or side is at a higher level than another, a rising of falling level.
    Slope
  • Lowest part/bottom part supporting the layer of the volcano
    Base
  • It has records of eruption within 10,000 years and last 600 years
    Active
  • Has no records of eruption for the last 10,000 years
    Inactive
  • has not erupted but may erupt in the future
    Dormant
  • Not expected to erupt
    Extinct
  • Formed by the accumulation of lava that oozes out from the volcano
    Shield
  • Has large crater
    Cinder
  • Large nearly perfect slope structures formed by an alternate solidification of both lava and pyroclastic deposit examples
    Composite/Stratovolcano
  • Stream driven eruption as the hot rocks come in contact with water and it is short lived characterized
    Phreatic
  • Violent Eruption and a large column of very fine ash
    Phreatomagmatic
  • Periodic Weak to violent eruption
    Strombolian
  • Tall eruption that reaches up to 20km high
    Vulcanian
  • Explosive type and Violent eruption
    Plinian
  • High in iron, magnesium, and calcium but low in potassium and sodium
    Basaltic Magma
  • A magma has moderate amounts of these minerals, with a temperature range from about 800oC to 1000oC (1472oF to 1832oF)
    Andesitic Magma
  • A magma is high in potassium and sodium but low in iron, magnesium, and calcium. It occurs in the temperature range of about 650oC to 800oC (1202oF to 1472oF). Both the temperature and mineral content of magma affect how easily it flows.
    Rhyolitic Magma
  • The resistance to flow
    Viscosity
  • IT is a heat coming from inside of the earth
    Geothermal Energy
  • Give 5 steps to generate a geothermal powerplant
    1 . Uses are drilled deep into the earth to pump steam/
    2 . When it reaches the surface, the drop in pressure causes the water to turn into steam/
    3 . Steam spins the turbine/
    4 . Cooling tower cools the steam/
    5 . Cooled water pumped back/