geography rocks&landscapes Flashcards
what are the four types of erosion
hydraulic action, abrasion, attrition and solution
what is abrasion
material from river that wears away bank
what is hydraulic action
force of water
what is attrition
rocks hitting eachother
what is solution
chemicals in water
what are the four types of transportation
traction,saltation,suspension and solution
weathering biological:
root action
plants growing thru rocks cracks
weathering physical:
freeze thaw
water in the cracks, freezes, expands and makes a bigger crack
what is mass movement
the downward movement of material due to gravity
etc. slumping and sliding
what is extrusive rocks
it has small crystals, that cool outside
wtc basalt
what is intrusive rock
it has big crystals, that cools inside
etc granite
upland characteristics
made up of hard rock (erodes slow)
and is steep
lowland characteristics
softer rock (erodes fast) low / flat land
upland locations
dartmoor
lowland locations
north/south downs