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7 ag stories you might have missed this week - June 4,

Natural Selections: How rocks recycle

Natural Selections: How rocks recycle
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Sand and sandstone: mountains recycled into beaches, beaches petrified into bedrock

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.

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