Geology Cafe

Introduction to Geology

Quiz 12 - Glaciers and Glaciation
1. Very large glaciers that spread out over land areas are called:
a. ice caps.
b. piedmont glaciers.
c. continental ice sheets.
d. ice shelves.
e. outlet glaciers.

2. The area of a glacier in which new ice is forming is called the:
a. snowline.
b. zone of wastage.
c. zone of ablation.
d. zone of calving.
e. zone of accumulation.

3. If ablation is equal to accumulation, then:
a. calving occurs.
b. the glacier stops flowing.
c. the glacial front stops moving.
d. surging occurs.
e. avalanches occur.

4. Submerged, steep-walled troughs that formerly held glaciers are called:
a. aretes.
b. cirques.
c. cols.
d. tarns.
e. fjords.

5. Unusual large boulders that were deposited by glaciers are called:
a. erratics.
b. moraines.
c. drifts.
d. tills.
e. drumlins.

6. The boundary between forests and barren ground on a mountainside is called:
a. snow line.
b. permafrost line.
c. timberline.
d. grassline.
e. moraine.

7. Landscapes with permafrost in high elevation and-or high latitude regions (such as north of the Arctic Circle) is called:
a. tundra.
b. desert.
c. rainshadow.
d. scablands.
e. ice shelf.

8. The breakout of an ancient glacial ice-dammed lake in north central Washington, Lake Missoula, resulted in the formation of:
a. the Channeled Scablands.
b. the Great Lakes.
c. the Missouri River.
d. the Ohio River.
e. the Mississippi River.

9. The 400 foot rise in sea level cause by the melting of the last continental glaciers is called:
a. The Spokane Flood.
b. The Great Flood.
c. The Flandrian Transgression.
d. The Holocene Epoch.
e. Laurentide Glacier.

10. Which of these was the most recent glacial stage of North America?
a. Illinoisan
b. Nebraskan
c. Kansan
d. Wisconsin
e. Pliocene

Extra Credit:
At the peak of the last ice age, California did NOT have:
a. shorelines located as much of 10 to 70 miles west (offshore) of its present location.
b. alpine glaciers and ice caps covering most of the Sierra Nevada and southern Cascade volcanoes.
c. great lakes filling large portions of Death Valley and lower Mojave Desert regions.
d. glaciers covering much of San Francisco Bay.
e. large land mammals including wooly mammoths and sabertooth tigers (now extinct).