Glacial+Striations

GLACIAL STRIATIONS
When glaciers moved across the area up to 10,000 years ago they dragged gravel, rocks and even bounders at the base of the ice. This material cut grooves into the bedrock beneath them - these are called glacial striations.The striations tell us the direction in which the ice moved, even though the ice is long gone! There are good examples of the striations somewhere in the school yard.


 * EXERCISE:** Find an area where the bedrock is exposed to the air. Can you see the striations (grooves)? Do they point towards the Montgomery Street school or towards the big grey French School (Ecole Ste Anne) behind the playground area?

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