Folding and Faulting Activity (Leaving Cert Geography): Flashcards
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Practise the cards
13 cards from this deck
Faulting definition
Faulting definition
Rocks fracture due to compression, tension or shearing forces, causing rock displacement
Compression force effect on crust
Compression force effect on crust
Pushes rocks together, causing upward movement
Tension force effect on crust
Tension force effect on crust
Pulls rocks apart, causing downward movement
Shearing force effect
Shearing force effect
Moves rock sections laterally in opposite directions
Scarp (escarpment)
Scarp (escarpment)
Cliff face formed by vertical rock displacement
Throw in faulting
Throw in faulting
Amount of vertical displacement of rock
Heave in faulting
Heave in faulting
Amount of horizontal displacement
Hanging wall
Hanging wall
Section of crust above the fault line
Footwall
Footwall
Section of rock beneath the fault line
Normal fault cause & movement
Normal fault cause & movement
Tension forces; one side sinks downwards
Reverse fault cause & movement
Reverse fault cause & movement
Compression; rock slips upwards creating escarpment
Transform fault movement type
Transform fault movement type
Horizontal/lateral, not vertical
Block mountain (horst) formation
Block mountain (horst) formation
Two parallel reverse faults push central section upwards
