Laboratory Manual for Introductory Geology 4e

GEOTOURS EXERCISE 15
Flowing Ice as a Sculptor of Landforms
Name:
Course:
Section:
Date:
Exploring Geology Using Google Earth
1. Visit digital.wwnorton.com/geolabmanual4
2. Go to the Geotours tile to download Google Earth Pro and the accompanying
Geotours exercises file.
Expand the Geotour15 folder in Google Earth
by clicking the triangle to the left of the folder
icon.
Check and double-click the MonoCraters_
TopoMap overlay to fly to the eastern side of
the Sierra Nevada.
Mountains in California, a region that has
experienced considerable alpine/valley glaciation
(note that you can select the overlay and
use the transparency slider at the bottom of
the Places panel to make the overlay semitransparent).
(a) Check and double-click the Feature
placemark. Identify the glacial landform
represented by this linear ridge.
(b) Check and double-click the Ridges I
placemarks. Identify the glacial landforms
represented by these linear ridges.
(c) Check and double-click the Ridges II placemarks (leave the Ridges I placemarks checked). Which set of landforms
(Ridges I or Ridges II) originated first? How do you know? Hint: You may want to toggle the topographic map on
and off.
(d) Check and double-click the Peak placemark. Identify the type of glacial landform represented by this triangularshaped
peak.
(e) Check and double-click the Basin placemark. This amphitheater-shaped basin forms what type of glacial
landform? What is its valley called (relative to the Walker Creek valley that is labeled on the topographic map)?
basin
(f) Check and double-click the Curved Ridge placemark. What type of glacial landform is this curved ridge (which is
made up of well-sorted sediment)?
valley
15.5 GLACIERS AND CLIMATE CHANGE
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