Page 380 - Laboratory Manual in Physical Geology

C. Refer to FIGURE 13.2 , an ASTER satellite image of a 20-by-20 km area of southern Alaska. It is an infrared image, so

vegetation appears red, glacial ice is blue, and snow is white.

1. Where is the zone of ablation in this image, and how can you tell?

2. Name two resources (used by humans) that were created by the glaciers in FIGURE 13.2 ?

0 1 2 3 miles
0 1 2 3 4 km

D. REFLECT & DISCUSS In what ways have the glaciers affected the landscape in the above image, and what does it suggest
about how extensive these glaciers must have been in the past?

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