Glaciation Flashcards
(25 cards)
What is an ice age
An extreme cold that takes over planet
What is a glacier
A river of ice
What happens to snow when air is compressed out of it
Turns into firn
What is plucking
When the bottom of the glacier freezes on the ground when ice is stationary which then traps rocks and tears them away
What is abrasion
When stones embedded on the bottom of the glacier scrapes across landscape like sandpaper
Corrie in Scottish map
Corie
Corie on Welsh map
Cwm
What are some land uses for an arête
Extreme rock climbing
Abseiling
What is an arête
Is a steep knife edge ridge between corries
What is a pyramidal peak
Is a rugged hilltop where 3 or more arêtes meet
Describe how a corrie is formed
Snow collects in a hollow (in a north facing slope protected form sun) over the years snow compacts turns into glacial ice
During ice age-As the glacier begins to move it erodes the hollow by plucking and abrasion
After ice age- a deep hollow is left behind know as a Corrie
How is a u-shaped valley formed
A v-shaped valley which has been eroded by a river, then experiences a glaciers flowing down it eroding the sides, which deepens and widens the valley
MISFIT RIVER IS FORMED
How is a hanging valley formed
Is when a small glacier join a main glacier form the side usually there is a waterfall their
What is a truncated spur
Steep straight side of the u-shaped valley
What are some conflict between hill walkers and farmers
Hillwalkers will leave gets open and sheep will get out
Hill walkers could bring dogs would could frighten or even kill sheep
Hill walkers could litter which means animals could choke on it
Hill Walkers block farmers tractors from getting in
Conflicts between forestry and tourists
Having to stop operations due to hill walkers being a safety hazard
Hillwalkers burning it down
Workers will annoy Hillwalkers with large machinery by making noise
Conflicts between small villages and tourists
Tourists block people from getting out houses by taking dedicated spots
There can be too many tourists witch causes overcrowding
Local shop prices go up due to there being high demand
Tourists litter which can ruin natural area
Too many tourists cars a can block roads
Conflicts between active and passive tourists
Active tourists such as jet skiers can either badly injure or kill passive tourists if they crash
Active tourists on boats and jet skis can make a lot of noise which irritates passive tourists
An active tourists and a bike coming down a hill to a passive Hillwalker could severely injure them
What is an arête
A steep knife edged ridge which forms between two corries
What is a pyramidal peak
Is a rugged hilltop where 3 or more arêtes meet
How is a hanging valley formed
Smaller glaciers join the main glacier from the side,these create smaller u shaped valleys which join to the main glacier from above
What is a truncated spur
These are steep straight side of the u shaped valley where the interlocking bits have been eroded
