7 Slope Development How internal and external forces impact on landscape External forces that shape the landscape over time.

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Presentation transcript:

7 Slope Development How internal and external forces impact on landscape External forces that shape the landscape over time

Chapter 7: Slope Development External forces Shape landscape over time

Chapter 7: Slope Development Earth’s surface Changes and evolves over time by: Volcanism Tectonic uplift Denudation Subsidence

Chapter 7: Slope Development Physical processes shape the Earth’s surface Rivers Winds Mass movement Glaciation

Chapter 7: Slope Development Mechanics of a changing landscape Weathering Mechanical Biological Chemical

Chapter 7: Slope Development The cycle of landscape change Three stages: Youthful = high relief, rugged Mature = rounded landscape Old = landscape is almost flat and it’s the lowest level of land surface, i.e. it’s base level