English "Black hand sandstone" Cited by user Chris Capoccia on 24 Dec 2021 Black Hand Sandstone is a multistory, crossbedded, coarse-grained conglomeratic sandstone within the Cuyahoga Formation in Ohio.
English Logan Formation Cited by user Bibcode Bot on 19 Aug 2012 The Logan Formation is the name given to a Lower Carboniferous (early Osagean) siltstone, sandstone and conglomeratic unit exposed in east-central Ohio and parts of…