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BSS ESC 11 CH 8-12 vocab
Chapter 11
27
Science
11th Grade
12/11/2008

Additional Science Flashcards

 


 

Cards

Term

Arete

 

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Definition
Shape divid that seperates two ajoining cirques.
Term

Calving

 

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Definition
Procees by wich a block of glacier breaks off and falls into the sea to make a iceberg.
Term

Cirque

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Definition
Semicircular basin formed at the head of a glacial valley.
Term

Continental Glacier

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Definition
Large sheets of ice covering a large part of a continent.
Term

Crevasses

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Definition
Great fissure or crack in a glacier.
Term

Drumlins

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Definition

Long canoe shaped hills made of till and shaped by an advancing glacier.

 

Term

Erratics

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Definition
Rock that has been transported by glacial action.
Term

Esker

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Definition
A long winding ridge formed when sand and gravel fill meltwater tunnels beneath a glacier.
Term

Firn

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Definition
Partially frozen and compacted refrozen snow wich has yet to become a glacier.
Term

Glacial Trough

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Definition
U-shaped valley formed by glacial erosion.
Term

Glacier

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Definition
Term

Horn

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Definition
Pyramid shaped formed where three or more cirques meet.
Term

Ice Cap

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Definition
Small ice sheet.
Term

Ice Front

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Definition
The end of a glacier.
Term

Ice Sheet

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Definition
Another name for a continental glacier.
Term

Kames

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Definition
Small cone shaped hills formed at the glacial front by meltwater pouring sediment off the glaciers surface.
Term

Kettles

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Definition
Circular hollow left in outwash plain when a burried ice block melts.
Term

Morain

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Definition
Accumulatins of glacial till.
Term

Nunataks

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Definition
Mountains that project through ice sheets.
Term

Outwash

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Definition
Sediment deposit in front of glacier by streams of melted water.
Term

Outwash Plains

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Definition
Broad stratification, gently sloping, deposit of sediment formed beyond the terminal morain by streams of a melting glacier.
Term

Roches Moutonnees

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Definition
Mass of glacial eroded bedrock.
Term

Rock Flour

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Definition
Fine sand and silt formed by the crushing of rock beneath a glacier.
Term

Snow Line

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Definition
Lowest level of that permenant snow reaches durning summer.
Term

Striations

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Definition

Scratches left on rocks and bedrock by glacier movment.

Term

Till

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Definition

unsorted and unstratafied rock materials carried in the bottom of a glacier.

Term

Valley Glacier

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Definition
A lon- slow moving wedge shaped stream of ice.
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