eustatic + isostatic change
- Created by: Libby Easden
- Created on: 25-02-13 17:46
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- Eustatic change and isostatic change
- tides responsible for daily change
- many changes took place in quaternary glaciation: advance+ retreat of ice
- stage 1: climate colder = new glacial period, ^ precipitation as snow > to glacial ice. store of water - slowing of hydrological cycle
- sea -level falls across globe - known as eustatic fall
- stage 2: weight of ice sinks land surface ( not all areas affected)
- This movement is isostatic (and moderates the eustatic fall in areas)
- Stage 3: climate gets warmer. ice begnis to melt. replenishes main source = global sea-level rise( eustatic)
- floods many areas of low land = submergent features >flooded river valleys (rais)
- Stage 4: as ice removed land readjusts to previous level (isostatic)
- if readjustment = quiter than eustatic > emergent features i.e. raised beaches
- stage 1: climate colder = new glacial period, ^ precipitation as snow > to glacial ice. store of water - slowing of hydrological cycle
- as mean global temp continues to ^ inevitable consequence for sea levels
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