Study Guides (248,246)
United States (123,302)
Geography (10)
GEG 120 (10)

Notes Test 4 4.16.13.docx

3 Pages
Unlock Document

GEG 120
Peter Muller

Finishing Continental Glaciers -Products of scouring -can deepen existing valleys(Finger Lakes) -Most often ice-scoured, depression pocked plain -Glacial lakes -Pluvial Lakes -Precipitation beyond the ice sheet -Glacial Lake Bonneville (today: great salt lake remnant) -Dammed up lakes -Deposits blocking melt water (Great Lakes) AGGRADAITIONAL LANDFORMS OF ICE SHEETS -Sedimentary load of rock debris -huge amounts transported, especially over softer geologic materials -most of load is carried in basal layer (much of it coarse) -powerful erosion agent (scouring), but deposition occurs as well -Glacial drift (deposited by melting ice sheets during deglaciation) -In-situ deposition by receding ice sheet(unsorted till) -Transport by melt water from ice front (sorted stratified drift) MORAINES -Depositional ridges and mounds (pushed-around rock debris) -Terminal moraines: ice advances like a bulldozers pushing debris in front of it ice sheet now reaches terminal point -Other types of moraines -Ground moraine -Recessional Moraines DRUMLINS -Smooth elliptical hill rising above till plain (cigar-shaped) -Long axis parallel to direction of ice movement -Created when ice sheet reshapes preexisting till GLACIAL MELTWATER DEPOSITS -Moraines and drumlins are ice-deposited, but the landform situation becomes more complicated with meltwater -Meltwater flows atop, beneath, and in front of the ice sheet -Carries rock debris away from glacier and sorts it to varying degrees -Melt-water-deposited layers are known as glacial outwash A good example of an outwash OUTWASH PLAIN -Most outwash landforms develop ahead of the receding glacier on the outwash plain -Plain is product of meltwater carrying rock debris away from the wasting ice front -Blocks of unmelted ice often buried on plain, melt, and form depressions called kettles -Other types of depositional landforms associated with a receding ice sheet LANDFORMS AND LANDSCPES MOUNTAIN GLACIERS -Major characteristics -Mostly confi
More Less

Related notes for GEG 120

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.