Weathering, Mass Movement

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Across
  1. 2. Action A type of mechanical weathering where water enters cracks in rocks freezes and expands eventually breaking the rock apart.
  2. 3. Weathering The breakdown of rocks by chemical reactions such as carbonation which dissolves limestone.
  3. 6. The steeper the slope the faster mass movement occurs as gravity pulls material downward more easily.
  4. 7. A landscape formed by carbonation where limestone is dissolved by acidic rainwater creating features like caves swallow holes and limestone pavements.
  5. 8. Creep A slow type of mass movement that causes the formation of small ridges called terracettes on slopes. Trees and fences may lean downhill.
  6. 10. A rapid flow of snow and ice down a mountainside often triggered by sudden temperature changes or vibrations.
  7. 11. A sudden movement of waterlogged peat down a slope occurring in areas of heavy rainfall and poor drainage.
  8. 13. gaps in the rock on a limestone pavement
  9. 14. Pavement A flat exposed area of limestone rock with cracks called clints and grikes formed by chemical weathering.
  10. 17. A rapid movement of soil and rock down a steep slope often triggered by heavy rainfall earthquakes or human activity like road construction.
  11. 19. A fast type of mass movement where saturated soil and water mix to form a river of mud often caused by heavy rainfall or volcanic eruptions.
  12. 20. Weathering The breaking down of rocks due to plants animals or human activity like tree roots growing in cracks and breaking rocks apart.
Down
  1. 1. removal of trees that can cause soil to become loose and mass movement to occur
  2. 3. A chemical weathering process where rainwater mixes with carbon dioxide to form a weak acid dissolving limestone and creating features like karst landscapes.
  3. 4. slabs of rock in a limestone pavement
  4. 5. A collection of loose broken rock at the base of a cliff formed by freeze-thaw action and rockfalls.
  5. 9. can cause soil to become heavy and cause landslides
  6. 12. The loose layer of rock soil and debris that covers solid rock and can be moved by mass movement.
  7. 15. A hole in a karst landscape where a river disappears underground caused by carbonation dissolving limestone.
  8. 16. area in Co Clare that is a karst landscape
  9. 18. Weathering The breaking down of rocks without changing their chemical composition such as freeze-thaw action.