Geomorphology Lab
Study Guide (Exogenic Process)
Overview:
This module is focused on the discussion on geomorphology, which is the study of the classification, description, nature, origin, and development of landforms on the earth's surface (topography). We will study both endogenic (powered by Earth's internal energy) and exogenic (powered by gravity and solar energy) geomorphic processes. Please use the study guide Download study guide of the module Download of the module in your learning process. Make sure you can answer all the questions listed there.
Key concepts explained:
· What is Geomorphology?
· https://youtu.be/oGMqLFKaYHw
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· What are endogenic and exogenic geomorphic processes? What are the main difference between them?
· Endogenic processes: Igneous and Tectonic
· Exogenic processes: A continuum of processes: weathering, erosion, transportation, deposition
· https://youtu.be/8iaXljsMItY
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· What is denudation? What are denudation processes? How do they act together (explain with examples: Grand Canyon, Yosemite National Park)
· https://youtu.be/wrACJA2MCGY
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The following video will explain the questions listed below:
· What is weathering, erosion and deposition, respectively?
· Explain and give examples of different types of physical weathering.
· Frost wedging (Frost Action)
· Exfoliation
· Abrasion
· Explain and give examples of different types of chemical Weathering
· Oxidation
· Carbonation (Karst Topography)
· Explain and give examples of different types of biological Weathering
· Root wedging
· What is differential Weathering? How does climate conditions (i.e. temperature and moisture) influence the degree of weathering?
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· Use rivers as an example to explain how running water erodes, transports, and deposits weathered materials and change landforms? What are the factors that influence water's ability to erode, transport and deposit?
· https://youtu.be/3YdEkegvJCQ
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· Identify typical erosional and depositional landforms shaped by each geomorphic agent, including gravity, rivers (fluvial), wind (aeolian), and glaciers (glacial)
· https://youtu.be/q45i9JOdXCw
· https://youtu.be/fCOrup5MSSI
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· gravity (mass wasting/mass movement: creep, rock fall, rock avalanche, slide, slump, what conditions may lead to landslides?)
· Rivers
· https://youtu.be/XJ_FNS8Z_ek
· https://youtu.be/6wEN683XXiM
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· lateral erosion vs incision
· v-shaped valley, waterfalls, braided streams, meanders, river cliff, slip-off slope, floodplain, oxbow lake, floodplains and alluvian deposits, river delta
· Wind
· https://youtu.be/kOf_xdgqpk8
· https://youtu.be/kH-W_2w1WzI
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· deflation and abrasion, Desert Pavement, Ventifacts, Yardangs
· sand dunes migration
· Glacier
· https://youtu.be/OvRXWbTZ8YY
· https://youtu.be/vOAju-zNnrs
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· Erosion: Plucking (frost wedging) and Abrasion, U-shaped valley, Cirque, Hanging valleys, Aretes, Horn, Fjords, Rôche moutonnée
· Deposition: Glacial till, Glacial Erratics, lateral moraines, terminal moraines, Medial moraines, drumlines, outwash plain, eskers, kettle lakes
· Coastal waves and tides
· https://youtu.be/roMMDQ89gcs
· https://youtu.be/4RiHd4c1F8c
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· erosion: cliffs and wave cut platforms, arches, sea caves, sea stack
· deposition: beaches, inter tidal zone, berms, longshore drift, swash and backwash, sand dunes