Chapter 19 Flashcards
(10 cards)
At its maximum extent, continental glacial ice in North America extended as far south as __________.
A. the Gulf of Mexico
B. Florida
C. Minnesota
D. the Ohio River
E. Montana
D. the Ohio River
__________ is granular snow which is beginning to coalesce into glacial ice.
A. A cirque
B. Ablation
C. Nèvè or Firn
D. An esker
E. Ablation
C. Nèvè or Firn
Materials deposited during a lengthy pause in glacial retreat are known as__________.
A. recessional moraine
B. terminal moraine
C. medial moraine
D. eskers
E. till plain
B. terminal moraine
The world’s largest contemporary ice sheet in the Northern Hemisphere is found in __________.
A. Alaska
B. Greenland
C. The Himalaya
D. Africa
E. The high Cascades
B. Greenland
The slow melting of blocks of stagnant ice in the land surface is the cause of __________.
A. cirques
B. ground moraine
C. eskers
D. roche moutonnée
E. kettle lakes
E. kettle lakes
Glacially deposited hills that are slightly smaller than moraines are called:
A. eskers
B. drumlins
C. till plains
D. roche moutonnée
E. kames
B. drumlins
Associated with mountain glaciers are broad, ampitheater shaped hollowed out areas called_______.
A. cirques
B. glacial troughs
C. moraines
D. permafrost
E. pediment
A. cirques
Lakes that form at the advance of a glacier are called:
A. arêtes
B. glacial meltwater
C. horn lakes
D. proglacial lakes
E. eskers
D. proglacial lakes
Which of the following is thought to NOT be a cause of the Pleistocene glaciation?
A. Decreased volcanic activity
B. Milankovitch cycles
C. Variations in solar output
D. Tectonic upheaval
E. Changing positions of continents
A. Decreased volcanic activity
The ground material that is transported along at the base of a glacier is called _________.
A. roche moutonnée
B. glaciofluvial deposition
C. kames
D. outwash plains
E. glacial flour
E. glacial flour
