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Would the Champlain sea return?
In the news has been a report that global warming and glacial melting may raise sea levels six metres in the next hundred years. Would this auger the return of the Champlain Sea to the St. Lawrence basin and the Ottawa Valley?
1 Answer
- 2 decades agoFavorite Answer
I think that during the existence of the Champlain Sea there was also a higher rate of seafloor spreading. Because the seafloor was spreading faster, it had less time to cool. Because it didn't cool down, it didn't "sink" into the mantle as readily, and so the ocean basins were shallower. Since the ocean basins were shallower, the ocean water would "spill over" onto the continents, creating the inland seas that existed at the time. It wasn't just a result of the warmer climate that existed at the time.
In any event, isn't most of the water in the Ottawa Valley many tens of meters above sea level anyways?
