More than just rocks
The 58th Annual Meeting of the Institute on Lake Superior Geology is taking place this week in Thunder Bay, and runs until Sunday.
There are lots of field trips and presentations taking place over the next few days, with particular attention being paid to evidence of an ancient meteor impact in Northern Ontario.
Pete Hollings is the Chair of the event, and a professor of geology at Lakehead University. Here's his chat with the CBC's Jeff Walters