The BGS Lexicon of Named Rock Units — Result Details
Gafallt Shales Facies (Caban Conglomerate Formation)
Computer Code: | GA | Preferred Map Code: | Ga |
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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) |
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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 |