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Matthew Gramling posted a new activity comment 3 years, 2 months ago
3 years, 2 months ago3 years, 2 months agoGreetings @mel-bri ! I would concur with @leonardo-miranda . Alternatively, they could a result of erosion on shale-like rock. I’ve seen similar patterns in gray shale that I’ve wondered if they were erosion or trace fossils at a Silurian site in NW GA