Weathering (AQA A-Level Geography): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Weathering
Weathering
Breaking down & deterioration of rock at/near Earth's surface
Regolith
Regolith
Loose rock material produced by weathering that stays in situ
3 types of weathering
3 types of weathering
Mechanical, chemical, biological/organic
Dominant weathering in cold environments
Dominant weathering in cold environments
Mechanical and chemical (biological is limited)
Frost shattering
Frost shattering
Rock breaking by repeated freeze-thaw of water in cracks
Water expansion % when freezing
Water expansion % when freezing
Nearly 10%
Scree
Scree
Angular rock debris accumulation at base of steep slopes
Nivation
Nivation
Combination of weathering processes beneath snow patches
Solifluction
Solifluction
Slow downslope movement of saturated soil
Nivation hollows can develop into...
Nivation hollows can develop into...
Corries (cirques) - armchair-shaped hollows in mountainsides