Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Glacier
|
any large mass of ice that moves slowly over land
|
|
|
Glacier
|
any large mass of ice that moves slowly over land
|
|
|
valley glacier
|
a long, narrow glacier that forms when snow and ice build up high in a mountain valley
|
|
|
Continental glacier
|
a glacier that covers much of a continent or large island
|
|
|
Ice Ages
|
a time when continental glaciers covered large parts of Earth's surface
|
|
|
Plucking
|
as a glacier flows over the land it picks up rocks
|
|
|
Till
|
the mixture of sediments that a glacier deposits directly on the surface
|
|
|
Moraine
|
the till deposited at the edges of a glacier that forms a ridge
|
|
|
Kettle
|
a small depression that forms when a chunk of ice is left in glacial tills
|
|
|
Fiord
|
forms when the level of the sea rises filling a vally once cut by a glacier in a coastal region
|
|
|
Cirque
|
a bowl-shpaed hollow eroded by a glacier
|
|
|
Arete
|
a sharp ridge separating two cirques
|
|
|
horn
|
when glaciers carve away the sides of a mountain, the result is a horn, a sharpened peak
|
|
|
glacial lake
|
glaciers may leave behind large lakes in long basins eroded by plucking and abrasion
|
|
|
kettle lake
|
forms when a depression left in till by melting ice fill with water
|
|
|
u-shaped valley, Drumlin
|
a flowing glacier scoops out a U-shaped valley.Ice of a continental glacier sliding over a moraine nay shape it into a drumlin. It is a long mound of till that is smooted in the directoion of the glacier's flow.
|
