Laboratory Manual for Introductory Geology 4e

EXERCISE 15.6
Recognizing Features of Mountain Glaciation (continued)
DEM (false color) of a portion of Glacier National Park showing classic features of mountain glaciation.
Lowest
elevation
Highest
elevation
(b) Look at the chapter opening photograph and identify as many features of mountain glaciation as you can.
EXERCISE 15.7
Case Studies in Geologic Reasoning: A Glacial Dilemma
Name:
Course:
Section:
Date:
Mt. Katahdin is the highest peak in Maine, reaching almost a mile above sea level. At first glance, the glacial history of the
area seems to be straightforward. A closer look suggests it is a bit more complicated. Examine FIGURE 15.15, a shaded
relief topographic map of the Mt. Katahdin area.
(a) What glacial landform is represented by North Basin, South Basin, and Little North Basin?
(b) What glacial feature is represented by the Knife Edge, Hamlin Ridge, and Keep Ridge?
(c) What kind of glacial feature is Mt. Katahdin?
(d) What type of glacier produced these features?
The regional setting of Mt. Katahdin is shown in the inset in Figure 15.15. The area of northern New England, Quebec, and
New Brunswick shown in this map was covered by continental glaciers that pushed as far south as Long Island. The Passadumkeag
esker in Figure 15.10 is located just a bit south of Mt. Katahdin, as shown by the green dot in the inset.
(e) Suggest an explanation for the origin of the glacial features on Mt. Katahdin and the surrounding peaks in the midst
of an area affected by continental glaciation There is more than one possible answer.
402 CHAPTER 15 GLACIAL LANDSCAPES