Karsten to speak on geology at public library
Anna Karsten will be the guest speaker for the Geology of Southeast Minnesota event at the Lake City Public Library on Thursday, Sept. 28, at 6:30 p.m.
Southeastern Minnesota has changed from a vibrant coral reef to a highland surrounded by glaciers. From the moving equator to catastrophic floods, this talk will cover how the local landscape evolved through time to what people now see along Highway 61.
The presentation will include:
• Basic geology
• Geology of Southeast Minnesota
• Current changes in landscape
• How to identify rock types
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