and Bunker, 1985).
A few thousand years later, a huge lake formed at the southern margin of the Lau-
rentide Ice Sheet. It is called Lake Agassiz and formed 11700 C14 years ago. The lake
is believed to have emptied into Hudson Bay in a huge jökulhlaup causing a sudden
input of freshwater into the North Atlantic that may have disturbed the ocean current
system and caused a cold spell 8200 years ago
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