Chapter 14 Flashcards

1
Q

Sediments deposited directly by glaciers as they melt are termed

A

till

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2
Q

When sea level rises, causing the ocean to fill a glacially carved valley, a _____ results.

A

fjord

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3
Q

Valleys carved by glaciers tend to be shaped like the letter _____, whereas valleys carved by water tend to shaped like the letter _____.

A

“U” ; “V”

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4
Q

A lake that forms within a bowl-shaped depression formed by a mountain glacier is termed a(n)_____.

A

tarn

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5
Q

During glacial epoch, global sea level is

A

lower because water is stored on the continents

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6
Q

Ice is a substance with a high albedo, which means it

A

reflects most of the light that falls upon it

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7
Q

The current interglacial interval began a little more than _____ years ago.

A

10,000

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8
Q

An important long-term factor determining whether glacial ice will form on the continents has likely been the proportion of which gas in the atmosphere?

A

carbon dioxide

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9
Q

For each item, select the letter which labels the correct part of the image.
The Question: Where in this illustration does the total annual amount of snow fall exceed the total annual amount of snow melting?

A

E

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10
Q

Lake Bonneville was the predecessor of

A

Great Salt Lake

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11
Q

Bowl shaped glacier-
Horn-
Tarns-

A

cirque glacier
Peak of 3 or more glaciers
lake forms in a cirque

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12
Q

How do Glaciers form?

A

More snow than is melting, snow turns to ice, zone of accumulation is faster than zone of oblation

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13
Q

zone of oblation is faster than zone of accumulation

A

glacier will shrink

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14
Q

What is a moraine?

A

accumulation of rock debris (till) carried or deposited by a glacier

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15
Q

Aretes

A

ridge along mountain between two glaciers

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16
Q

U Valley-

A

glacier

17
Q

V Valley-

A

River

18
Q

As glacier moves brings sediment at the bottom and drops sediment at

A

the zone of oblation-

19
Q

Lousse-

A

fine-grained stuff trapped in glaciers

20
Q

Pleistocene period

A

Most recent Ice age occurred