Glacial striations are always a pleasure to see. They are a reminder of the past. I came across an excellent fresh exposure where even the finest scratches in the bedrock were readily apparent. The site was along a shoreline. Periodic high waves have been removing the glacial drift that is covering the glacial striated bedrock exposing very unweathered striatations etched into the metamorphosed basalt.
Monthly Ferns—Prairie Quillwort & Scale Tree
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Prairie Quillwort is 50 centimeters tall (© 2015 Robbin Moran); Scale Tree
is 50 meters tall (source). Both are lycophytes—formerly "Fern Allies".This
ep...
1 day ago
2 comments:
Very cool! Where is this located?
The site is on the south shore of Decatur Island
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