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
Where to study
Fundamentals of Physical Geography, Class XI, chapter 4: Distribution of Oceans and Continents (Reprint 2026-27)
- ch. 4, Distribution of Oceans and Continents, p. 1-9 (book pages 27-35)
- ch. 4, Continental Drift, p. 1 (book page 27)
- ch. 4, Evidence in Support of the Continental Drift, p. 1 (book page 27)
- ch. 4, Force for Drifting, p. 2 (book page 28)
- ch. 4, Post-drift Studies, p. 2 (book page 28)
- ch. 4, Divergent Boundaries, p. 7 (book page 33)
- ch. 4, Convergent Boundaries, p. 7 (book page 33)
- ch. 4, Transform Boundaries, p. 7 (book page 33)
- ch. 4, Plate Tectonics, p. 5-7 (book pages 31-33)
- ch. 4, Movement of the Indian Plate, p. 8-9 (book pages 34-35)