Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Ch.12 (Final)


The sediment deposited by debris-laden melt water is called _______. outwash
Above the rigid zone, glacial ice movement is due to __. passive riding of the ice on the glacier
The grinding of rock against rock by a glacier produces a very fine sediment called ____. rock flour
____ are landscape features that indicate a mountainous area has been glaciated. Cirques, horns, and arêtes
Glaciers can be considered as _______ of fresh water for future use. deposits
Once a glacier is gone the land begins to uplift slowly to its pre-glacial height, a process called ____. crustal rebound
___ moraines are elongate low mounds of till that form along the sides of valley glaciers. Lateral
The _____ is the end of a glacier. terminus
The upper part of a glacier, the part with perennial snow and ice, is called the __. zone of accumulation
A worldwide decrease of at least _____°C in temperature would bring about a new glacial age. 5
As ice retreats by melting back, the rock debris carried by the glacier is deposited to form a relatively thin layer of till called a(n) ___________. ground moraine
A(n) _______ is a mass of ice that is not restricted to a valley but covers large areas of land. ice sheet
A(n) ___________ is an ice-transported boulder that was not derived from the underlying bedrock. erratic
A(n) _____ is a coastal inlet that is formed by a drowned glacial carved valley. fiord
A(n) ____ is a long sinuous ridge of water-deposited cross-bedded and well-sorted sediment deposited by a stream that flowed within or under a glacier. esker
The central portion of a valley glacier moves _____ the sides. faster than
When an ice block that was buried in sediment finally melts a depression called a ___ forms. kettle
A(n) ______ is a steep-sided half-bowl shaped recess carved at the head of a mountain glacial valley. cirque
A(n) _____ is the sharp peak that remains after cirques have cut back into a mountain on several sides horn
The down-valley part of a glacier is the ____, where melting, evaporation, and calving take place. zone of ablation
___ are the product of past glaciations. The Great Lakes
______ first suggested that glacial/interglacial episodes are related to variation in solar radiation cycles. M. Milankovitch
If the terminus of a glacier remains stationary for a few years a distinct _______ may form. recessional moraine
If a moving glacier reaches a body of water ______ float free. icebergs
A glacier will flow faster where it is steeper and _____. thicker
What caused the glacial ages? All of the above have contributed to the glacial ages.
Two layers of sediment resulting from one year's deposition in a glacial lake are called ___. varves
A(n) _____ -shaped valley (in cross section) is characteristic of glacial erosion. U
Under the influence of gravity a glacier moves down valley and eventually __. ablates
A large trunk glacier carves a deeper valley than smaller tributaries. After the glacier disappears the tributary valley remains as _____ high above the main valley. a hanging valley
If all ice sheets were to melt, sea level would _____. rise by over 60 meters
Open fissures called ___ develop in the brittle surface ice of glaciers. crevasses
The boundary between the zone of accumulation and the zone of ablation is an irregular line called the _____. equilibrium line
Bodies of till shaped into streamlined hills are called ___. drumlins
The theory of _____ states that at times in the past, colder climates prevailed during which much more of the land surface was glaciated than at present time. glacial ages
A(n) ___ is a lake occupying a bedrock depression excavated by a glacier. tarn
Sharp ridges called ___ separate adjacent glacially carved valleys. arêtes
Where tributary glaciers come together the adjacent lateral moraines join to form a ______ moraine. medial
Created by: Thomas.Siu