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 (-2810)
Gafallt Shales Facies Formation (-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