Geology of the Boundary Waters
The Boundary Waters is an incredible place, with a fascinating geologic history. On this week’s “Lunch with the Friends” presentation, we will dive into the geology of the Boundary Waters and Lake Superior region. Learn about the glacial history that has shaped this area, and discover something new about rock formations you might see on a BWCA trip.
We’ll hear from Rudy Molinek, a graduate student in Geoscience at the University of Wisconsin-Madison. Rudy researches the history of the ice sheets that have periodically covered northern North America over the past 2.5 million years, and he writes and podcasts about our relationship to geology in the Lake Superior region.
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As a geologist, I will be better prepared for my lake Sag BWCA trip this fall. Thank you!
Well done. I have been following Nick Zentner from Central Washington University for many years. The more I learn about geology the more I realize how little I know about geology. I am planning to travel from Oregon to the BWCA for October of this year. This will help me understand more of what I will see and enjoy.
Quite interesting. Excellent presentation.
Lots of gold on the surface on the west end of the holy waters.
It is my understanding that the iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters. This oxygen immediately combined with the abundant dissolve iron in ocean water to produce hematite or magnetite. So if there is more oxygen in the water now, why isn’t there a greater production of hematite or magnetite? The speaker said iron deposition can no longer occur because oxygen in the atmosphere (and therefore in the water) is too high. Or is the amount of iron in the water too low now or is the overall chemistry of ocean water not conducive to iron deposition.?
For further information read: A 2.5 billion year old story about iron in the ocean, told by a rock May 21, 2015 Anne M. Hartwell
Once you explore the Canadian wilderness you will think of the Boundary Waters is a big tourist trap
@Justtc
6 ай бұрын
I lived in Fort Frances, Ontario and know the Boundry Waters very well. It is a beautiful area but do the Wolfs Head tour around Superior, especially on the Canadian side will blow your mind! I love that drive, any time of year. The rock cuts are like sirens calling me to pull over and explore. ❤️
Snowball earth probably never happened But great video though