Geomorphology and the Earth
Continental drift, sea-floor spreading and plate tectonics
Practise 1 PYQConcepts to cover
- Wegener's continental drift: Pangaea, Panthalassa, Laurasia and Gondwanaland
- Evidence for drift: jigsaw fit, matching rock belts across the Atlantic, tillite, placer deposits, fossil distribution
- Forces proposed for drift; Holmes's convection current theory
- Sea-floor spreading and palaeomagnetic evidence
- Plate boundaries: divergent, convergent and transform, with landforms at each
- Major and minor lithospheric plates
- Movement of the Indian plate and the making of the Himalaya