. "Harrogate Roadstone"@en . "Harrogate Roadstone"@en . "327.0"^^ . . "HRO"@en . "stable"@en . "A grey, medium- to coarse-grained, thinly to thickly bedded, crinoidal limestone, interpreted to have a turbiditic origin. Individual beds show slumping at the base, are massive bedded above and the tops may be ripple cross-laminated."@en . . . "Limestone. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage (Carboniferous Period) (330.3-327 Ma BP)."@en . "A sharp upward change in a conformable succession from limestone to predominantly mudstone. The top of the last limestone bed below the Cravenoceras malhamense (E1c1) Marine Band."@en . . "330.3"^^ . . "A sharp upward change in a conformable succession from predominantly grey mudstone to limestone. The base of the first limestone bed above the Harlow Hill Sandstone."@en . "20m"@en . . .