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DAY 1 - CORRELATION FINALS > Geomorph > Flashcards

Geomorph Flashcards

1
Q

occur where basins have been excavated by moving ice or where drainage patterns have been altered by deposition of glacial till.

A

Glacial Lakes

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2
Q

When a linear mountain range has several closely spaced valleys, the alluvial fans may coalesce to form a gentle undulated slope on the sides of the bounding lowlands.

A

Bajadas

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3
Q

broad bedrock surface with a gentle slope away from highlands.

A

Pediments

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4
Q

are formed in basins of internal drainage. The lake beds often consist of salts (evaporites) which gives the dry lake bed a white color
resembling a beach

A

Playa lakes

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5
Q

Steep sided hills that rise above a surrounding relatively flat plain.

A

Inselbergs

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6
Q

Unconsolidated, unstratified aggregation of small, angular mineral fragments, usually buff
in color. Generally believed to be wind-deposited.

A

Loess

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7
Q

a permanent (on a human time scale) body of ice that shows evidence of downward
movement due to gravitational pull.

A

Glacier

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8
Q

occupy hollows or bowl-shaped depressions on sides of mountains

A

Cirque glacier

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9
Q

valley glaciers that extend to the coastline carving a valley on it.

A

Fjord glaciers

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10
Q

valley glaciers that covers a gentle slope of a mountain range.

A

Piedmont glacier

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11
Q

glaciers covering whole mountain ranges

A

Ice caps

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12
Q

the largest types of glaciers on Earth.

A

Ice sheets

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13
Q

ice near melting point

A

Temperate glaciers

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14
Q

ice below melting point

A

Polar glaciers

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15
Q

where ice can be created and remain all year round

A

Snowline

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16
Q

long parallel scratches and grooves that are produced by rocks embedded in the ice scraping against the rock underlying the glacier.

A

Glacier striations

17
Q

rock that has a smooth surface produced as a result of fined grained material embedded in the glacier acting like sandpaper on the underlying surface.

A

Glacial Polish

18
Q

If two adjacent valleys are filled with glacial ice, the ridges between the valleys can be carved into a sharp knife-edge ridge, called an

A

Arête

19
Q

Where three or more cirques are carved out of a mountain, they can
produce a sharp peak

A

Horn

20
Q

bedrock knobs carved by glaciers into streamlined hills. One side is smoothened while the steep side is plucked.

A

Rouche Montoneé (Sheepback)

21
Q

nonsorted glacial drift deposited directly from ice

A

Till

22
Q

a glacially deposited rock or fragment that now rests on a surface made of different
rock

A

Erratics

23
Q

are deposits of till that have a form different from the underlying bedrock

A

Moraines

24
Q

long sinuous ridges of sediment deposited by streams than ran under or within a glacier

A

Eskers

25
Q

If depressions form underneath a glacier and remain after the glacier is melted then water filling these depressions become small lakes where fine-grained sediment is
deposited.

A

Kettle Lakes

26
Q

Streams and lakes forming on top of stagnant ice may deposit
stratified sediment on top of the glacier. When the glacier melts these deposits are set down on
the ground surface. The former lake deposits become _____, and the former stream deposits
become ________.

A

Kames and Kame Terraces

27
Q

The Ice Ages began between

A

10,000 to 2 MYA (Pleistocene Epoch)

28
Q

The pulverized
rock produced by the glacial gristmill is appropriately called

A

Rock flour

29
Q

is an all-embracing term for
sediments of glacial origin, no matter how, where, or in what form
they were deposited

A

Glacial drift

30
Q

are streamlined asymmetrical hills
composed of till

A

Drumlins

31
Q

Earlier glaciations are indicated by deposits called ____, a sedimentary rock formed when glacial till becomes
lithified.

A

tillite

32
Q

Solitary sand dunes shaped like crescents and with their tips pointing downwind

A

Barchan dunes

33
Q

In regions where the prevailing winds are steady, sand is plentiful, and vegetation is sparse or absent, the dunes form a series of long ridges that are separated by troughs and oriented at right angles to the prevailing wind

A

Transverse dunes

34
Q

are long ridges of sand that form more or less parallel to the prevailing wind and where sand supplies are moderate

A

Longitudinal dunes

35
Q

are isolated hills of sand that exhibit a complex form

A

Star dunes

DAY 1 - CORRELATION FINALS (3 decks)

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