Rockwood Posted October 13, 2020 Share Posted October 13, 2020 Found in a gravel pit on the west side of Moosehead lake, Maine. Likely Devonian (some lower) marine. Conularid congregation ? Concretion ? Link to comment Share on other sites More sharing options...
GeschWhat Posted October 13, 2020 Share Posted October 13, 2020 That's interesting what ever it is. Can I see a closeup of the dark brown thing in the lower right? Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Rockwood Posted October 13, 2020 Author Share Posted October 13, 2020 These are exposed in a way that is very common here, a broken/stepped plane roughly perpendicular to the way the rock cleaves. That's how I've been reading at least. Link to comment Share on other sites More sharing options...
GeschWhat Posted October 13, 2020 Share Posted October 13, 2020 Oh well, I thought it looked shiny in the first photo. It is a beautiful rock though. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Rockwood Posted October 15, 2020 Author Share Posted October 15, 2020 Could it be that the same tectonic movements that caused the cleavage to differ from bedding left a fault with slickensides through concretions ? Link to comment Share on other sites More sharing options...
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