Themes of the Day:

• Glacial Erosional Landforms
• Glacial Depositional Landforms
• Glacial Evidence of Climate Change

Glacial Erosional Landforms

• Erosion by plucking and abrasion
• Erosional features common to all types of Glaciation:
  • striations
• Erosional Landforms usually associated with Continental Glaciation:
  • roche moutonee - The Beehive, Acadia National Park, Maine
  • fjord
• Erosional Landforms usually associated with Alpine Glaciation:
  • horn
  • arete
  • cirque
  • tarn
  • U-shaped valley
  • hanging valley - Bridalveil Falls, Yosemite NP, California
  • Development sequence: A --> B --> C

Glacial Depositional Landforms

• Ice-contact deposits are generally poorly-sorted
• Depositional Landforms:
  • till (ground moraine)
  • Moraines
    Types:
    • end (terminal and recessional)
    • lateral - alpine glaciation
    • medial - alpine glaciation
    • interlobate - continental glaciation
  • drumlin
  • esker
  • pitted outwash plain with kames and a kettle lake
  • erratic boulder
  • varves

Illustrated Glossary of Alpine Glacial Landforms

• Test your knowledge of Glacial Landforms.