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Glacial and Arid Landscapes

Ashley Cooper

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3.are formed when two advancing valley glaciers come together to form a single ice stream
7.are deposits made by steams flowing in tunnels beneath the ice, near the terminus of a glacier
13.often, end moraines, outwash plains, and vally trains are pocketmarked with basins or depressions known as _____
14.a thick ice mass that forms over hundreds or thousands of years
15.Covering some uplands and plateaus are masses of glacial ice
18.steep-sided hills, like eskers, are composed largly of stratified drift
19.snow accumulation and ice formation occur in the (3 words)
22.sinuous, sharp-edged ridges
25.the most noticeable result of deflation in some places is shallow depressions called _____
27.they carry water only in response to specific episodes of rainfall
28.a ridge of till that forms at the terminus of a glacier
29.first major erosional process
30.the pulverized rock produced by the glacial " grist mill" is appropriately called _____
31.streamlines asymmetrical hills composed of till
1.after the ice has receded, the valleys of tributary glaciers are left standing above the main glacial trough and are termed _____
2.also known as semi-arid
4.also known as arid
5.when glaciers waste away, these materials are left as ridges
6.sharp, pyramid-like peaks
8.The glacier widens, deepens, and straghtens the valley, so that what was once a narrow v shaped vally is transformed into a u shaped _____
9.a way the wind erodes; the lifting and removal of loose material
10.when the ice at the bottom of a glacier contains large rock fragments, long scratches and grooves called ____ may be gouged into the bedrock
11.Boulders foun in the till or lying free on the surface are called _____
12.gently rolling layer of till deposited as the ice front recedes
16.stony veneer; may form as deflation lowers the surface by removing sand and silt from poorly sorted materials
17.also known as alpine glaciers
20.all embracing term for sediemnts of glacial origin, now matter how, where or in what form they were deposited
21.Along the portion of the Antarctic coast, glacial ice flows into the adjacent ocean, creating features called _____
23.These enourmous masses flow out in all directions from one or more centers and completly obscure all but the highest areas of underlying terrain
24.second major erosional process
26.deep, often spectacular, steep-sideded inlets of the sea that exist in man;y hihg-latitude areas of the world where mountians are adjacent ot the ocean


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