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3 parts to the “process of erosion”

G.K. Gilbert in the of “Land Sculpture” chapter of his Report on the Geology of the Henry Mountains first published in 1877 :

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3 parts to the “process of erosion”

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  1. G.K. Gilbert in the of “Land Sculpture” chapter of his Report on the Geology of the Henry Mountains first published in 1877: “The three general divisions of the process of erosion are 1) weathering, 2) transportation, and 3) corrasion. The rocks of the general surface of the land are disintegrated by weathering. The material thus loosened is transported by streams to the ocean. In transit it helps to corrade from the channels other material.” 3 parts to the “process of erosion”

  2. Transport Limited Case

  3. Weathering Limited Case

  4. Regolith – from rhegos (blanket) and lith (rock). Mobile regolith Weathered Rock – fractured, chemically weathered, but not mobilized. Weathered Profile Saprolite Saprolite – can be dug/augured, but retains rock structure; has not undergone strain. Presence indicates a lack of bioturbative activity and little or no hillslope transport. Regolith Mobile Regolith – detached, material in motion. Note strain profile. Can be called “soil” if segregated into horizons.

  5. Blackboard Example Denudation – Calculating via mass loss measurement

  6. River Loads

  7. Hot Processes – Differential Thermal Expansion

  8. Hot Processes – Fires on Alluvial Fans

  9. Surface Temperature Variation Recorded in Subsurface Thermal Profile

  10. Cold Processes

  11. Frost Cracking Experiments

  12. Carbon Cycle

  13. Weathering

  14. Weathering

  15. Weathering

  16. Weathering

  17. Weathering

  18. Weathering

  19. Weathering

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