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www.ask.com/history/were-great-lakes-formed-bad2150583c4e632

The formation of the Great Lakes, which are also known as the Laurentian Great Lakes, began around 2 billion years ago after the forming of North American mountain systems and thei...

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.

Great Lakes

en.wikipedia.org/wiki/Great_Lakes

These pipes were formed by a violent, supersonic eruption of deep-origin. The lake lies in the Ottawa-Bonnechere Graben, a Mesozoic rift valley that formed 175 ...

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.

TEACH Geography: How the Lakes Were Formed - Great Lakes ...

www.great-lakes.net/teach/geog/lakeform/lf_1.html

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  ...

How They Were Made - University of Wisconsin Sea Grant Institute

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 - The Awesome Mitten

www.awesomemitten.com/how-the-great-lakes-were-formed/

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 ...

Great Lakes Formation - Tech Alive

techalive.mtu.edu/meec/module08/GreatLakesPastandPresent.htm

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 ...

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?

Popular Q&A
Q: How were the Great Lakes formed?
A: http://en.wikipedia.org/wiki/Great_Lakes…. Read More »
Source: answers.yahoo.com
Q: How were the great lakes formed?
A: During the last ice age, there were large masses of ice called glaciers. The last major glacier called the Laurentide formed. It covered almost all of Canada an... Read More »
Source: answers.yahoo.com
Q: How were Great Lakes formed?
A: they where formed by giant rocks that fell form the sun. Read More »
Source: wiki.answers.com
Q: How were the Great Lakes formed?
A: The Great lakes were formed many years ago during the last Ice Age. North America was covered with glaciers and the movement of the glaciers caused deep pits to... Read More »
Source: ccavotoccsdorg.blogspot.com
Q: How were the Great Lakes formed?
A: Have you ever wondered how the Great Lakes were formed? The answer to that starts with the ice age. During the last ice age, there were large masses of ice call... Read More »
Source: wiki.answers.com