"Belton Sand And Gravel"@en . "Sand and gravel, with possible lenses of silt, clay or peat. [Generic description]."@en . . "2.58"^^ . "stable"@en . "BESG"@en . "Belton Sand And Gravel"@en . . "0.0"^^ . . . . . . "Gravel and sand. Stratified superficial deposits. Occurs onshore. Formed during the Quaternary Period (2.58-0 Ma BP)."@en .