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    GLACIAL LANDFORMS

a. lEARNING OUTCOMES

By the end of this unit you should be able to:


B. INTRODUCTION

Alpine Glaciers

Photo: alpine (valley) glacier
Image credit: S. Hillebrand, US FWS

Continental Glaciers (ice sheets)

Photo: Antarctic ice sheet
image credit: NASA Blue Marble


C. GLACIAL MECHANICS

Glacial Flow

Photo: flowing ice
Image credit: NASA/JPL
Photo: blue ice with crevasses
Image credit: Amy Harris (used with permission)

Glacial Mass Balance Link: textbook note

  • advancing glaciers

  • stationary glaciers

  • retreating glaciers

Diagram: glacial mass balance

D. EROSIONAL LANDFORMS  Link: textbook note

U-shaped Valley or Glacial Trough
Photo: glacial trough, Glacier National Park
Image credit: R. Schukar. Used with permission.

Hanging Valley
Photo: Hanging valley, Glacier National Park
Image credit: K.A. Lemke. Used with permission.

 

Cirques
Photo: cirque & arete
Image credit: Molnia/USGS Glossary of Glacial Terminology

Aretes
Photo: arete
Image credit: K.A. Lemke. Used with permission.

 

Horns, Cirques, Aretes
Photo: cirque, aretes, horns
Image copyright B. Molnia, Terra Photographics. Image courtesy Earth Science World Image Bank http://www.earthscienceworld.org/images

Cirques, Horns, Aretes, U-shaped valleys
Photo: cirques, horns, aretes, u-shapted valleys
Image copyright B. Molnia, Terra Photographics. Image courtesy Earth Science World Image Bank http://www.earthscienceworld.org/image

 

Tarns
Photo: tarn
Image credit: K.A. Lemke. Used with permission.

Paternoster lakes
Photo: paternoster lakes
Image credit: K.A. Lemke. Used with permission.

Striations Photo: striationsImage credit: K.A. Lemke. Used with permission.


E. DEPOSITIONAL LANDFORMS

Moraines Link: Canadian moraines

Lateral Moraines
Photo: lateral moraine
Image credit: R. Schukar. Used with permission.

Medial Moraines
Photo: medial moraine
Image credit: Amy Harris. Used with permission.

End moraines: terminal and recessional moraines Link: textbook note

Diagram: terminal & recessional moraine

Other moraines

Ground moraine
Photo: ground moraine
Image credit: R. Schukar. Used with permission.

Interlobate moraine
Map: Kettle Interlobate Moraine, Wisconsin credit: K.A. Lemke

Kettle Holes

Greenbush Kettle, Kettle Moraine State Forest, Wisconsin
Photo: kettle hole
Image credit: K.A. Lemke. Used with permission.

Drumlins

Diagram: drumlin Photo: drumlin
Image credit: K.A. Lemke. Used with permission.

F. MELTWATER LANDFORMS Link: textbook note

Outwash Plains

Eskers

Glacial tunnel
Photo: glacial tunnel
Image credit: R. Schukar. Used with permission.

Esker near Kettle Moraine State Forest, WI
Photo: esker
Image credit: K.A. Lemke. Used with permission.

Kames Photo: kame

Image credit: K.A. Lemke. Used with permission.


G. WISCONSIN GLACIAL LANDFORMS Link: Wisconsin glacial deposits Link: Wisconsin topogrpahic map


H. SUMMARY


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©Karen A. Lemke: klemke@uwsp.edu
Last revised August 18, 2010