"Peat, organic mud and calcareous mud [Unlithified Deposits Coding Scheme - Extended]"@en . "stable"@en . . . . . "Peat, organic mud and calcareous mud [UDCS-X]"@en . . . "XPMOMC"@en . . "Peat, organic mud and calcareous mud [UDCS-X]"@en .