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2 Intro To Landforms And Landscapes
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- 2. Geography = People+ Environment
- 3. "Geography is the studyof The Earth as the home of people" Yi-Fu Tuan 1991 Human behaviour Human impact on the environment Sustainable development and use of resources Interdependence Scale
- 4. BUT………….. • We mustnot forget the Earth is 4,600,000,000 years old!!!!!!! • Humans (homo sapiens) have only been on the Earth for 100,000 years. • We only have 10,000 years of recorded history • It is 2007
- 5. For the last3.7 billion years since the Earth’s crust formed Geomorphological processes have been shaping the Earth.
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- 8. Geomorphological Processes Tectonic movement– Tectonic plates moving Weathering – Breaking down, decomposition of rocks from contact with atmosphere Erosion – Rocks and soils being broken down, disintegrated and removed Transportation – Rocks and soils being moved Deposition – Rocks and soils being dropped down
- 9. Geomorphological processes need agentsto actually do the work…
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- 15. Now its yourturn…. • Explain how your landform was formed. • Which geomorphological processes? • Which agent?
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- 22. Transportation Process • Thedebris produced by weathering and the sediment removed by EROSION is transported by these agents. • Gravity – Avalanche, landslide, soil creep • Wind – Sandstorm, suspension, saltation • Rivers – Traction, saltation, suspension, solution • Sea – Longshore Drift • Glacier – Moraine, ice flow, rotational flow