Gretchen Koehler and Barb Heller performing May 30 at Meetinghouse Museum in Dekalb
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Natural Selections: How rocks recycle
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Apr 29, 2021
Above: Quartz sand up close. Photo: Mark A. Wilson, public domain | Below: Potsdam Sandstone along the Raquette River below Hannawa Falls. Photo: Michael C. Rygel, Creative Commons, some rights reserved
Dr. Curt Stager and Martha Foley look into the geological version of recycling.
Natural Selections is a weekly conversation about the natural world heard each Thursday on
The Eight O Clock Hour.
When you re relaxing on an Adirondack beach, you re sitting on the weathered and filtered bones of the mountains granite. And when you re admiring a building made of Potsdam sandstone, you re looking at ancient beaches fused into bedrock.
Martha Foley: Let s do Rocks, Pt. 2. We were talking about how you get your students at Paul Smith s to pick up a rock and then trace its story. Where did it come from, back in time? What is it going to end up as? Let s start at the beach, which is all little tiny grains of what I presume were rocks. So go back in time for me.