#paleozoic — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #paleozoic, aggregated by home.social.
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#Gneiss boulder
I came upon this stream-polished boulder along the Quinebaug River, just below East Brimfield Reservoir near #Sturbridge, #Massachusetts. Because it has been transported and I just took a photo, I don’t know its origins…but it looks like either the Quinebaug or Marlboro formations, Ordovician and Cambrian, respectively. Laurentia, not Gondwana. Lovely banding, eh? Lens cap is about 4 cm in diameter.
#gneiss #Paleozoic #metamorphic #geology #photo 27 mm #Fujifilm