Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Transcript of dunes
Northern hemisphere has been repeatedly covered by ice sheets
-the last was the Wisconsin ice sheet
-it extended from the east coast to the Rocky Mountains
-has done much to give us our present day landforms and drainage patterns
Glaciers Carve Land
The Wisconsin glacier moved debris that was deposited in landforms known as moraines.
Moraine is defined as an area in which sediment has been deposited by glaciers.
The Valparaiso Moraine is a large one of these which extends across the region.
melting ice drains...
Rivers carried melt matter and silt. This was deposited into river beds. This can still be found in the beds of the Wabash and Tippecanoe. The Kankakee River became a major drainage route for the melt.
Ancient Lake Changes
There were 3 stages in which the lake levels dropped. The Valparaiso Moraine created a U-shaped disk around the lake. The shores of the ancient lake that shrank over time make up...