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Similar to Exogenous processes on earth
Exogenous processes on earth
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- 2. OBJECTIVES • classify rocksinto igneous, sedimentary, and metamorphic; • describe how rocks undergo weathering; and • explain how the products of weathering are carried away by erosion and deposited elsewhere;
- 3. Weathering is the disintegrationor decomposition of rocks, soils, and minerals together with other materials through contact with Earth’s subsystems. Exogenous Processes on Earth
- 4. a. Physical/Mechanical Weathering -breaking downof rocks by mechanical forces concentrated along rock fractures Exogenous Processes on Earth
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- 8. a. Chemical Weathering -processof breaking down rocks through chemical reactions Exogenous Processes on Earth
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- 13. REGOLITH - loose fragmentsof rocks and minerals that cover the surface of the Earth Exogenous Processes on Earth
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- 15. AGENTS OF WEATHERING •water • precipitates • fire • pressure • bioweathering • acids (chemical weathering) Exogenous Processes on Earth
- 16. EROSION - process bywhich Earth’s surface is worn away by wind, water, or ice and moves rock debris or soil from one place to another Exogenous Processes on Earth
- 17. Triggers of Erosion •rainfall • surface runoff • flowing rivers • seawater intrusion • flooding • freezing and thawing • hurricane and wind • human activities Exogenous Processes on Earth
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- 21. MASS WASTING - weatheringthat occurs on mountains detaches large slabs of rocks which moves down slope due to the force of gravity. Exogenous Processes on Earth
- 22. TRIGGERS OF MASSWASTING • volcanic eruptions • earthquakes • heavy rainfall • human intervention Exogenous Processes on Earth
- 23. TYPES OF MASSWASTING • falls • slides • slumps • avalanches • flows Exogenous Processes on Earth
- 24. FALLS • occur whenmaterials located in a steep slope move downward without contact with the ground until they reach the foot of the slope. Exogenous Processes on Earth
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- 26. SLIDES • move materialsas one nearly following a straight line down the slope. Exogenous Processes on Earth
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- 28. SLUMPS • move materialsas one nearly following a curved surface Exogenous Processes on Earth
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- 30. AVALANCHE • most rapidtype wherein loose materials move incoherently or in a chaotic fashion Exogenous Processes on Earth
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- 32. FLOWS • movement ofmaterials when they become saturated with water thus moving like a liquid Exogenous Processes on Earth
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- 35. EFFECTS OF MASSWASTING • loss of life/injury • property damage • loss of capital assets • interruption of economic activities Exogenous Processes on Earth
- 36. SEDIMENTATION - accumulation ofmaterials such as soil, rock fragments, and soil particles settling at the bottom. Exogenous Processes on Earth
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