The BGS Lexicon of Named Rock Units — Result Details
Caban Conglomerate Formation
| Computer Code: | CBN | Preferred Map Code: | Cbn |
|---|---|---|---|
| Status Code: | Pending Upgrade | ||
| Age range: | Llandovery Epoch (SL) — Llandovery Epoch (SL) | ||
| Lithological Description: | Massive to thick-bedded conglomerates with subordinate beds of pebbly coarse sandstone. | ||
| Definition of Lower Boundary: | Not defined. | ||
| Definition of Upper Boundary: | Not defined. | ||
| Thickness: | Not defined. | ||
| Geographical Limits: | Central Wales. | ||
| Parent Unit: | Not Available (!) | ||
| Previous Name(s): | [Obsolete Code: Use CBN]
(*46)
Caban Conglomerates [Obsolete Name and Code: Use CBN] (-2059) Drygarn Conglomerate [Obsolete Name And Code: Use CBN] (DNC) Caban Conglomerate Formation (formerly Facies) [Obsolete Name and Code: Use CBN] (-2670) Drygarn Conglomerate [Obsolete Name and Code: Use CBN] (-2671) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Quarry at north-east end of Caban-coch Reservoir, Rhayader. | ||
| Reference(s): | |||
| Lapworth, H, 1900. The Silurian sequence at Rhayader. Quarterly Journal of the Geological Society, Vol.56, p.67-137. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E179 E195 | |||