"Archerbeck Limestone Formation [Obsolete: use AKB, TYLS]"@en . "330.9"^^ . . "Conformable contact with unfossiliferous sandstones and mudstones c.15m below the base of the Cornet Limestone."@en . "Archerbeck Beds"@en . . "c. 100 m. Limestones form up to 33% of the thickness."@en . . "Archerbeck Beds"@en . "stable"@en . "Conformable contact with a thick seatearth lying c.90m above the Kinmont Limestone."@en . . . . . "Calcareous mudstone, limestone and mudstone with subsidiary calcareous sandstone. Stratified bedrock. Occurs onshore. Deposited during the Asbian Substage (Carboniferous Period) (337-330.9 Ma BP)."@en . "AKB"@en . "Alternating limestones, calcareous mudstones and mudstones with some calcareous sandstones. The strata contain a marine fauna of polyzoa, corals, brachiopods and bivalves."@en . "337.0"^^ . . .