how internal and external forces impact on landscape
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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: - PowerPoint PPT PresentationTRANSCRIPT
• How internal and external forces impact on landscape
• External forces that shape the landscape over time
7 Slope Development
Chapter 7: Slope Development
External forces Shape landscape over time
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
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
