EDEXCEL A LEVEL GEOGRAPHY EXAM
PREP FULL QUESTIONS AND SOLUTIONS
ALREADY PASSED STUDY SHEET
●● Divergent Plate Boundary
Answer: Cause effusive basaltic eruptions and rare shallow earthquakes
(Mid-atlantic ridge - Iceland)
●● Convergent Plate Boundary
Answer: Cause violent andesitic eruptions and shallow, deep powerful
earthquakes, volcanic cones, ocean trenches and mountains (Japan -
Pacific plate moving NW under Okhotsk plate)
●● Conservative Plate Boundary
Answer: Cause powerful shallow earthquakes and diverted rivers along
faults (San Andreas fault)
●● Infra-plate earthquakes
Answer: Caused by solid crust cracking over millions of years and
primary collision at a plate boundary (New Madrid, Missouri)
●● Infra-plate volcanoes
, Answer: Caused by hot spots from molten upwelling (Hawaii) or from
mantle plume under crust (Cape Verde)
●● Convection currents
Answer: Caused by heat radiating outwards from core that occur due to
mantle behaving like a viscous liquid
●● Earths structure
Answer: Core (Nickel/Iron), Mantle (870C solid and liquid), Crust (solid
1-75km)
●● Slab pull
Answer: When denser oceanic plates are subducted at cold
downwellings by gravity
●● Ridge push
Answer: When magma rises at constructive margin and pushes the plates
apart (Mid-atlantic ridge)
●● Paleomagnetism
Answer: Movement of plates apart identified by magnetic pattern caused
by magnetic field reverse (every 4 million years). Mid-oceanic ridge
contains iron that lines itself parallel to magnetic field and 'sets' after it
cools, permanently marking magnetic field
PREP FULL QUESTIONS AND SOLUTIONS
ALREADY PASSED STUDY SHEET
●● Divergent Plate Boundary
Answer: Cause effusive basaltic eruptions and rare shallow earthquakes
(Mid-atlantic ridge - Iceland)
●● Convergent Plate Boundary
Answer: Cause violent andesitic eruptions and shallow, deep powerful
earthquakes, volcanic cones, ocean trenches and mountains (Japan -
Pacific plate moving NW under Okhotsk plate)
●● Conservative Plate Boundary
Answer: Cause powerful shallow earthquakes and diverted rivers along
faults (San Andreas fault)
●● Infra-plate earthquakes
Answer: Caused by solid crust cracking over millions of years and
primary collision at a plate boundary (New Madrid, Missouri)
●● Infra-plate volcanoes
, Answer: Caused by hot spots from molten upwelling (Hawaii) or from
mantle plume under crust (Cape Verde)
●● Convection currents
Answer: Caused by heat radiating outwards from core that occur due to
mantle behaving like a viscous liquid
●● Earths structure
Answer: Core (Nickel/Iron), Mantle (870C solid and liquid), Crust (solid
1-75km)
●● Slab pull
Answer: When denser oceanic plates are subducted at cold
downwellings by gravity
●● Ridge push
Answer: When magma rises at constructive margin and pushes the plates
apart (Mid-atlantic ridge)
●● Paleomagnetism
Answer: Movement of plates apart identified by magnetic pattern caused
by magnetic field reverse (every 4 million years). Mid-oceanic ridge
contains iron that lines itself parallel to magnetic field and 'sets' after it
cools, permanently marking magnetic field
