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Landforms 2-Gradational Forces

Landforms 2-Gradational Forces. EPE. http://www.bing.com/videos/search?q=paria+canyon+the+wave&view=detail&mid=A6C491F0ED8D66B17DA9A6C491F0ED8D66B17DA9&first=0&FORM=LKVR2. Why does the Moon’s surface look like this?. Mt. Whitney. Mt. Marcy. Aron Ralston in Blue John Canyon. Weathering.

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Landforms 2-Gradational Forces

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  1. Landforms 2-Gradational Forces EPE

  2. http://www.bing.com/videos/search?q=paria+canyon+the+wave&view=detail&mid=A6C491F0ED8D66B17DA9A6C491F0ED8D66B17DA9&first=0&FORM=LKVR2http://www.bing.com/videos/search?q=paria+canyon+the+wave&view=detail&mid=A6C491F0ED8D66B17DA9A6C491F0ED8D66B17DA9&first=0&FORM=LKVR2

  3. Why does the Moon’s surface look like this?

  4. Mt. Whitney

  5. Mt. Marcy

  6. Aron Ralston in Blue John Canyon

  7. Weathering • The breaking down of rocks into small particles through mechanical or chemical processes

  8. Mechanical Weathering-the physical break-down of rock into smaller particles

  9. Half Dome-Exfoliation/Thermal Expansion

  10. Rock threat danger closes part of Yosemite lodging November 21, 2008 1:22 PM EST YOSEMITE NATIONAL PARK, California - Officials with the National Park Service say they will close part of a popular lodging complex at Yosemite National Park because an unstable cliff has created the potential for deadly rock fall. • Park officials said Friday that 233 cabins will close permanently, or about one-third of the lodging units available to park visitors at Curry Village. About half of the 618 cabins have been off-limits since a rock fall on the historic complex Oct. 8. • An Associated Press story this week said federal geologists have warned for at least a decade that the granite face of Glacier Point above Curry Village was dangerous. • Despite two deaths and an increase in the frequency and severity of the rock falls since 1996, park officials had been reluctant to act.

  11. Frost Wedging-Sierra Nevadas

  12. Root Wedging

  13. Salt wedging from evaporation

  14. Why are aircrafts kept in this Environment?

  15. What is the key to chemical weathering?

  16. Chemical Weathering • Co2 and rainwater react with limestone--creates calcium bicarbonate—carbonation • water reacts with and alumino-silicates--hydrolysis • O2 reacts with iron—oxidation (rust)

  17. oxidation

  18. Karst Landscape-limestone-carbonation

  19. Sinkhole in karst landscape

  20. Mammoth Cave, KY

  21. Anthropogenic chem. weathering

  22. Mass Movement • Down slope movement of materials due to gravity • Slope and water flow will determine the degree of mass movement Talus Slopes/Flows

  23. Mass Movement-Talus Slope

  24. Landslide-La Conchita, CA

  25. Soil creep-very gradual downward movement of soil

  26. Erosion

  27. Erosion • The movement of weathered material by various agents-- • Water with gravity—major force • Moving ice • Wind

  28. Arches NP

  29. Bryce Canyon NP

  30. The Wave – Paria Canyon-wind erosion

  31. V-Shaped Valley

  32. Horseshoe Falls

  33. Grand Canyon NP

  34. Canyonlands NP

  35. Nile Delta

  36. Colorado River Delta

  37. http://www.learner.org/vod/vod_window.html?pid=334

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