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- 19:03, 14 October 2015 Jennifer.Obrad talk contribs uploaded a new version of File:Figure P-3C.jpg (P-3C -- Mecca Quarry Shale Member (M) of the Carbondale Formation in which a large limestone concretion is present (at the hammer), overlying the Colchester (No. 2) Coal Member (C) just south of Viola, Mercer County.)