. "Up to 350 m."@en . "DARL"@en . "Dartry Limestone Formation"@en . "330.9"^^ . . . . . . "Disconformable with succeeding Meenymore Formation, locally erosional."@en . . . . "Limestone, dark grey, argillaceous, sparsely fossiliferous with disseminated chert in tabular or nodular form; interbedded with thin, dark grey to black silty, micaceous shale."@en . "stable"@en . . "Dartry Limestone Formation"@en . . . "337.0"^^ . . "Conformable and abrupt, planar or interdigitating with Glencar Limestone Formation."@en . . "Limestone with subsidiary chert and silty mudstone. Stratified bedrock. Occurs onshore. Deposited during the Asbian Substage (Carboniferous Period) (337-330.9 Ma BP)."@en .