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Geography-Cold > How does ice shape glacial landforms? > Flashcards

How does ice shape glacial landforms? Flashcards

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1
Q

Basal sliding

A

temp at base is above freezing=warm base glacier=moves downslope

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2
Q

internal deformation

A

ice crystals realign themselves into parallel layers and slide past eachother

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3
Q

striations

A

scratch marks caused by abrasion

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4
Q

chatter marks

A

discontinuous scratch marks caused by abrasion

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5
Q

roche motonnee

A

rock that has been plucked and made smooth by a glacier

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6
Q

eratics

A

huge boulders deposited on different bedrock

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7
Q

glacial budget

A

balance between accumulation and ablation. determines whether glacier is advancing or retreating. NOT THE VOLUME OF A GLACIER

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Geography-Cold (22 decks)

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