Essay 1 Flashcards
UNIT 3
What are three erosional processes?
Abrasion, Plucking, Sub-glacial meltwater erosion.
UNIT 3
What is erosion
Removal of rock by ice, water, wind or gravity
UNIT 3: REDEVELOPMENT CASE STUDY
How many people in redeveloped area, compared to outside, compared to average for England, are economically active but unemployed? What does this mean?
Inside - 3%
Outside - 18%
Average - 4%
Outside of redeveloped area is more deprived then the rest of England, while inside is much better then the rest of England, funds from here could have been spread across several areas.
UNIT 3
What is a Roche Moutonnees? How are they formed?
Macro/Meso/Micro?
Case study
Resistant rock that is smooth on one side and rigid on the other. Formed during regulation slip, with abrasion on the stoss side and plucking on the lee side.
Meso
Pen y Benglog - on Ogwen step
UNIT 3
What is a polished rock? How are they formed?
Macro/Meso/Micro?
Case study
sand, silt and clay (fine particles) polish rock surface, from abrasion.
Micro
Found on Roche Mountonees in Nant Ffrancon valley
UNIT 3: GENTRIFICATION CASE STUDY
How much did rent prices increase in Shoreditch in stage 2? How much was the average for east London?
53% vs 26%. Over 2 times the average for east London
UNIT 3:
What is the tertiary sector?
Services
UNIT 3
What is weathering?
Breakdown of rock, in situ
UNIT 3
Why are sub-glacial meltwater channels powerful?
Ice adds pressure, increasing hydrostatic pressure and velocity
UNIT 3
What landforms also occour in Nant Ffrancon valley?
Roche Mountonees, truncated spurs, hanging valleys and misfit river (Afon Ogwen), lateral moraines
UNIT 3
What is a Truncated spur? How are they formed?
Macro/Meso/Micro?
Case study
steep cliff face in a glacial trough. In a pre existing river valley interlocking spurs occour, as the river erodes the path of least resistance. As the glaicer moves down the valley these interlocking spurs are eroded.
Macro
Half dome in Yosemite
UNIT 3:
Who does stage 3 of gentrification benefit?
high income - business/private sector
high value services
private sector corporations - office buildings
Property owners
UNIT 3:
How did Covid impact highstreets?
Decrease in footfall, and services (cafes/restaurants). Spending drops to 80% of pre lockdown. Little commuters traveling to work, no day visitors, local residents did not invest in services.
235,000 jobs lost in 2022, double the amount from 2018. - less footfall
UNIT 3: REDEVELOPMENT CASE STUDY
How many people in redeveloped area, compared to outside, compared to average for England, are in professional employment? What does this mean?
Inside - 60%
Outside - 16%
Average - 28%
Many professional jobs are inside. People outside do not have the same employment opportunites
UNIT 3
How tall is Glyder Fawr? What type of weathering occurs at the top because of its height?
1001m, freeze thaw weathering
UNIT 3:
Why are some CBDs still in decline?
Competition from retail online, Out of town shopping centres, CBD retail redevelopments in nearby settlements, Out of town office developments, entertainment complexes, COVID-19, cost of living crisis
UNIT 3:
Why has internet shopping increased? How does growth of internet retail effect CBDs?
improvements in technology
Saves time - more convenient, comparison shopping (prices and reviews), greater variety, cheaper (less labour/automation, stored in a warehouse)
UNIT 3: GENTRIFICATION CASE STUDY
What was the apartment development called in Shoreditch?
Galliard Homes - “the stage”
UNIT 3: GENTRIFICATION CASE STUDY
What was ironic about the Galliard Homes
‘Street art’ throughout the apartment with exposed brick, as an ode to the urban pioneers who used to live there but can no longer
UNIT 3: GENTRIFICATION CASE STUDY
Were people right to protest cereal killer café?
No - working class people attacked a small business instead of a major cooperation (Versace)
UNIT 3
How long and deep is Nant Ffrancon Valley
700m deep and 5km long
UNIT 3:
What is stage 3 of gentrification?
Wealthy residents are attracted (business class). Leading to; exclusive housing, office/tertiary employment, services are orientated to affluent (high prices). Original working class and urban pioneers are priced out
UNIT 3:
What is stage 2 of gentrification?
Area is trendy, more affluent workers move in, tourist numbers increase due to services, demand for residential and commercial property increases (rent is increased). Working class and low value services (replaced by high value services) are outpriced
UNIT 3
How many cirques surround the Nant Ffrancon valley? What direction do they face?
7, North east
UNIT 3
What orientations are cirques. Why?
Northern hemisphere corries face north east. Receives the least amount of insolation (lower temperatures), meaning firn can form
UNIT 3: GENTRIFICATION CASE STUDY
Why do people oppose Galliard Homes?
High rent prices, eyesore, investors are from overseas, little affordable housing
UNIT 3: REDEVELOPMENT CASE STUDY
What did the ‘big city plan’ aim to do?
expand city core by 25%, extend walkways and canals, £600 million investment in new street station, investment in library, paradise circus and arena
UNIT 3
Why do sub-glacial meltwater channels have different discharge patterns to normal streams?
discharge comes from ablation in summer, movement is based on topography and movement of ice
UNIT 3:
Who does stage 3 of gentrification NOT benefit?
Working class, urban pioneers, low value services - priced out
UNIT 3
Explain dilatation
Rocks fracture parralell to pressure when the pressure is released (glacier melts). Rocks expand and fracture fue to the pressure release. Called pressure relase or unloading.
UNIT 3
How is a rock step formed?
Case Study
a change in geology, band of hard rock and band of soft rock. Glacier does not erode hard rock but erodes soft rock, causing a drop in altitude.
Ogwen step
UNIT 3: REDEVELOPMENT CASE STUDY
What is the NIA? How many jobs did the NIA create?
Office and leisure developments. Over 10,000 jobs created
UNIT 3:
Who does stage 1 of gentrification benefit?
Urban pioneers - cheap rent
Working class - prevents spiral of decline
Property owners - empty buildings generate income
UNIT 3: REDEVELOPMENT CASE STUDY
What was Brindley place like in 1970s
Run down, derelict factories along canal
UNIT 3
What is a cirque/cwm/corrie
Macro/Meso/Micro?
Case study
A large bowl shaped hollow, found at the head of a valley glacier.
Macro
Cwm coch
UNIT 3
What is a Striations? How are they formed?
Macro/Meso/Micro?
Case study
long scratches on bedrock, from abrasion
micro
Found on Roche Mountonees in Nant Ffrancon valley
UNIT 3: REDEVELOPMENT CASE STUDY
How big is Brindley place? When was it regenerated? How much did it cost? what did it develop?
15 hectares, 1987, costing over £200million, leisure, commercial and residential
UNIT 3
What impacts freeze thaw weathering?
Geology of rock (more porous (absorption)/ bedding (gaps in formation)
Climate - temperature must be able to fluctuate between 0 degrees Celsius
Altitude - decrease in temp higher up
Aspect - Orientation of rock, North vs Southern hemisphere
UNIT 3:
Why has cost of living increased?
Invasion of Ukraine increasing oil prices, meaning fuel costs increases, so transporting goods becomes more expensive, meaning goods prices increases.
UNIT 3
What are the factors effecting abrasion?
Ice thickness - thicker ice causes more erosion due to higher pressure, but too thick and the glacier becomes hard to move
Subglacial meltwater - Increases speed of glacier, but too much lubricant means the glacier will not erode
Relative hardness/resistance of debris and bedrock - if bedrock is harder there will be less erosion, weak debris turns into rock flour
Shape of debris - angular debris causes striations and cracks, fine sand and clay smooth and polish
Supply of debris - More debris causes more erosion, but it depends on the type of debris. Too much causes lower speed
Speed of glacier - Fast movement causes more erosion up to a point - too fast causes less erosion
UNIT 3: GENTRIFICATION CASE STUDY
What factor has people with professional occupation increased by in Shoreditch? What has working class decreased by.
professional occupancy up by x2.5
working class decreased by 50%