. "BRIE"@en . . . "314.75"^^ . "310.0"^^ . "Base of Fourth Cherry Tree Marker (mudstones with bivalves and euestheriids)."@en . . "Grey mudstones, siltstones and sandstones with thin coals."@en . . "Base of Brierley Coal."@en . . "Brierley Member"@en . "stable"@en . "Brierley Division [Obsolete: use BRIE]"@en . "Mudstone, sandstone and siltstone with subsidiary coal and seat-earth sandstone. Stratified bedrock. Occurs onshore. Deposited during the Bolsovian Substage (Carboniferous Period) (314.75-310 Ma BP)."@en . . . . "Brierley Member"@en . . "c.50m"@en .