| The limestones include dolomitic mudstones, wackestones, packstones and grainstones. |
| Occasional thin dark grey laminated mudstones are associated with some of the sandstones. |
| In Sodalen the exposed succession is c.40 m of laminated dark grey mudstones with intercalated fine-grained sandstone layers. |
| The Nun Mine Member consists of thin-bedded calcareous mudstones locally with abundant radiolaria, and represents offshore, basinal environments. |
| The sediments are finely laminated mudstones, formed in an outer shelf detrital belt, in quiet water environments. |
| A sandstone dyke-sill complex was intruded into a sequence of black mudstones and decimetre-thick bands of limestone. |
