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GLACIERS AND GLACIATION

Landscapes of Alpine Glaciation

EESB02H3 Principles of Geomorphology

To be completed by Wednesday November 20, 2024, Start of your Practical Section

Episodically throughout Earth’s history, great sheets of ice-covered large areas of the continents and mountainous regions of Earth.  Glaciers are powerful forces of erosion and deposition on Earth’s surface. In this exercise, you will use Google Earth to identify features associated with alpine glaciers.

 

Fig. 1. Google Earth image of alpine glaciers in southeastern Alaska, USA.

1. Open the file ‘Lab 4 Landscapes of Alpine Glaciation.kmz’ accompanying this exercise. Using the placemarks from that file, complete the table below by entering the appropriate term in the space next to the placemark (‘A’ through ‘BB’) that matches the landform.  


Alpine Glacier

Arete

Bergschrund

Braided Stream

Cirque

Col

Crevasse

Erratic Boulder

Equilibrium Line

Glacial Stream Lines

Hanging Valley

Headwall

Horn

Ice Field

Kettle

Lateral Moraine

Medial Moraine

Outwash Fan

Outwash Plain

Proglacial Lake

Receding Glacier

Rock Flour

Terminal Moraine

Terminus

Truncated Spur

U-Shaped Valley

Zone of Ablation

Zone of Accumulation

 

A

 

O

 

B

 

P

 

C

 

Q

 

D

 

R

 

E

 

S

 

F

 

T

 

G

 

U

 

H

 

V

 

I

 

W

 

J

 

X

 

K

 

Y

 

L

 

Z

 

M

 

AA

 

N

 

BB

 

LINKS TO RELATED SITES:

Wikipedia entry on Glaciers: http://en.wikipedia.org/wiki/Glacier

Glacier National Park: http://www.nps.gov/glac/index.htm

Glacier Bay National Park: http://www.nps.gov/glba/index.htm

Wikipedia entry on Ice Ages: http://en.wikipedia.org/wiki/Ice_age

NOAA web site on Glaciation: http://www.ncdc.noaa.gov/paleo/glaciation.html

Glaciers with Time: http://www.homepage.montana.edu/~geol445/hyperglac/index.htm

Milankovitch Cycles: http://en.wikipedia.org/wiki/Milankovitch_cycles