The BGS Lexicon of Named Rock Units — Result Details
Gafallt Shales Facies (Caban Conglomerate Formation)
| Computer Code: | GA | Preferred Map Code: | Ga |
|---|---|---|---|
| Status Code: | Pending Upgrade | ||
| Age range: | Llandovery Epoch (SL) — Llandovery Epoch (SL) | ||
| Lithological Description: | Thinly interbedded turbidite mudstones and burrowed hemipelagites with scattered thin turbidite sandstones. | ||
| Definition of Lower Boundary: | N/A. | ||
| Definition of Upper Boundary: | N/A. | ||
| Thickness: | N/A. | ||
| Geographical Limits: | Central Wales. | ||
| Parent Unit: | Caban Conglomerate Formation (CBN) | ||
| Previous Name(s): | Gafallt Shales [Obsolete Name and Code: Use GA]
(-2810)
Gafallt Shales Facies Formation [Obsolete Name and Code: Use GA] (-269) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Cutting at rear of Water Treatment Works, Elan Valley, 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 | |||