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Lecture 7: Ice ages and glaciation of Canada (Present Ice age - late…
Lecture 7: Ice ages and glaciation of Canada
Ice ages
There have been several Ice ages
Due to variations in the amount of greenhouse gases in the atmosphere
During an Ice age, temperatures vary because of variations in earth's orbit around the Sun
The Huronian Ice age
Some of the best evidence of early ice age is form the shoes of lake huron
Present Ice age - late Cenozoic
Pleistocene
Quaternary
Holocene
The don beds
Canada
Three main ice masses
Laurentide/Acadian
Cordilerian
Ice Sheet 1
Ice sheet 2
Ice sheet 3
Innuition