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Showing results for tags 'old port formation'.
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Hi Everyone, Now that RL is back to some measure of stability I'm exploring. Pa recently reworked an unstable road cut here in Blair county and some interesting material has weathered from the very soft Ridegely Member at the top of the Old Port Formation [Devonian]. With spring coming late I've located several other exposures of this layer and am excited because it is so easy to work (get the sandstone matrix wet and you can rub it off with your fingers!) I posted some unknowns over in the ID Help Section.
Got out Saturday and checked out a freshly reworked road Cut here in Blair County PA. If anyone would care to weigh in on ID of what i found I'd be interested. I'm looking forward to poking around here some more. I's most like to know what the round thing (labeled 'C") with the "plate-like" edges is. I know what I'm hoping it is and in reality what it most likely is but any help would be appreciated. Note: this a Devonian, Old Port Formation, Ridegely Member (a very soft coarse sandstone which in this locality is brownish but normally very white.) from Blair County PA. I'm posting some other items from the same spot over in the Pennsylvania Thread.