. . "Siliciclastic argillaceous rock"@en . . . . . . . . . . . . . . . . . "Siliciclastic argillaceous rock - In the Rock Classification Scheme, these are siliciclastic rocks with over 75% of the clasts smaller than 32 µm. British Geological Survey Research Report RR/99/03, section 2.3 and fig. 5."@en . "AROC"@en . "Siliciclastic argillaceous rock"@en . "stable"@en . . . .