Study

Internal geological processes

  •   0%
  •  0     0     0

  • The formula for geological risks is RISK=
    Hazard x vulnerability
  • The two mosy well-known internal processes are
    Volcanoes and earthquakes
  • Seismic waves transmit
    Vibration
  • For prediction, it is important to study the accumulated ____ in fault blocks
    tension
  • Name 5 types of geographical features on Earth's relief
    Mountains, valleys, plains, islands, volcanoes, etc
  • Which type of eruption has very fluid lava (Hawaiian, Vesuvian or Peléan)?
    Hawaiian
  • Metamorphism, magmatism and orogenesis... are these internal or external processes?
    Internal
  • External geological processes are moved by ___ and ___
    solar energy and gravity (solar energy evaporates water causing rainfall which leads to rock weathering and gravity makes rivers flow downstream+ affects tides)
  • Which type of eruption has alternate layers of lava and pyroclasts and cause strato volcanoes?
    Vesuvian
  • Internal or external processes? Those that flatten the relief
    External
  • In an earthquake, the point on the Earth's SURFACE closest to the hypocentre is called
    The epicentre
  • Which type of eruption has very viscose lava (Hawaiian, Vesuvian or Peléan)?
    Peléan
  • Internal geological processes are driven by
    The Earth's internal heat
  • For prediction, it is important to study signs that ____ is accumulating beneath the volcano
    magma
  • In a volcanic alert, the best option is the ___ ____ of the population
    controlled evacuation
  • True or fase: both volcanoes and earthquakes are located on the boundaries between plates
    true
  • What two things can help reduce seismic and volcanic risk? (start with letter P)
    prediction and prevention
  • Internal or external process? Those that raise up the relief
    Internal
  • The point where an earthquake starts (deep within the earth) is called the
    Focal point or hypocentre
  • True or false: magma has the same viscosity in all volcanoes
    False... some have magma which is more viscose (thick) and others more fluid
  • Erosion, transport, sedimentation and diagenesis... are these internal or external processes?
    external
  • In regions of seismic risk there are 3 steps that can be taken for prevention of major catastrophes... what are they?
    land planning, build seismic resistant infrastructure and have an emergency response plan