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Great Lakes

en.wikipedia.org/wiki/Great_Lakes

The Great Lakes are a series of interconnected freshwater lakes located in northeastern North .... These pipes were formed by a violent, supersonic eruption of deep-origin. .... The Great Lakes are ...

About Our Great Lakes -Background- NOAA Great Lakes ...

www.glerl.noaa.gov/pr/ourlakes/background.html

The Laurentian Great Lakes were formed nearly 20000 years ago when the earth's climate warmed and the last glacial continental ice sheet retreated.

How They Were Made - Sea Grant

seagrant.wisc.edu/glaciers/

Back to Great Lakes. How They Were Made. Thousands of years ago, the melting mile-thick glaciers of the Wisconsin Ice Age left the North American continent a ...

www.ask.com/youtube?q=How Were the Great Lakes Formed?&v=ibTWQogsbL8
May 9, 2010 ... Also, I love that even though in the past the Great Lakes were non-existent, the Baltic Sea was still there, despite the fact that it also formed after ...

How the Great Lakes Were Formed - Arizona State University

www.asu.edu/courses/gph111/Glaciers/GreatLakesMovie5.swf

HOW THE GREAT LAKES. WERE FORMED. An Interactive Flash movie from. Environment Canada's. GREAT LAKES KIDS. Begin. Have you ever looked at.

Formation of the Great Lakes - Emporia State University

academic.emporia.edu/aberjame/student/damery1/gl_form.html

Dec 1, 2004 ... All rivers and streams in these areas drain into the Great Lakes. ... These lobes were mostly caused by outcrops of highly resistant bedrock of ...

Carving Great Lakes - National Geographic Channel

channel.nationalgeographic.com/videos/carving-great-lakes/

Carving Great Lakes. To create something as spectacular as the great lakes requires an even greater force -- but what is it?

Glacial Lakes

www.geo.msu.edu/geogmich/glacial.html

It is generally accepted that the Great Lakes did not exist in preglacial times but ... (the tops of which were at higher elevations than was the ice margin) formed ...

Great Facts About the Five Great Lakes - LiveScience

www.livescience.com/29312-great-lakes.html

May 3, 2013 ... The Great Lakes — Superior, Huron, Michigan, Ontario and Erie ... These formed the basic shape of the Great Lakes, and about 10,000 years ...

All About the Great Lakes of North America - Geography - About.com

geography.about.com/od/specificplacesofinterest/a/greatlakes.htm

A comprehensive overview of the Great Lakes of North America, which include some ... During this period, major volcanic activity and geologic stresses formed the ... and after significant erosion, several depressions in the ground were carved.

Answer
The foundation for the Great Lakes basin was set by years of volcanic activity followed by flooding. In the Ice Age, glaciers carved massive valleys. As the glaciers receded, the Great Lakes began to form from the melting receding glacial water.
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TEACH Geography: How the Lakes Were Formed - Great Lakes ...

www.great-lakes.net

How the lakes were formed. About a billion years ago, a fracture in the earth running from what is now Oklahoma to Lake Superior generated volcanic activity  ...

Great Lakes Formation - Tech Alive

techalive.mtu.edu

Winter. Photo - Lake Superior ice formations. The Great Lakes have not always looked the way they do today. In fact if you were to go back in time and visit ...

How the Great Lakes Were Formed - The Awesome Mitten

www.awesomemitten.com

Feb 18, 2013 ... How the Great Lakes Were Formed. Awesome-Mitten-Formation-of-the-Great- Lakes Photo courtesy of academic.emporia.edu. The Great Lakes ...