The BGS Lexicon of Named Rock Units — Result Details

Creg Agheash Formation

Computer Code: CGA Preferred Map Code: notEntered
Status Code: Full
Age range: Arenig Series (OR) — Arenig Series (OR)
Lithological Description: Sandstone [quartz arenite], pale grey, thin to thick-bedded with interbedded laminated mudstone and siltstone.
Definition of Lower Boundary: Stratigraphical with the Lonan Formation.
Definition of Upper Boundary: Stratigraphical with the Maughold Formation.
Thickness: Up to 750 m thick.
Geographical Limits: Isle of Man.
Parent Unit: Manx Group (MANX)
Previous Name(s): Agneash Grit (Manx Slates) [Obsolete Name And Code: See CGA] (AGNG)
Agneash Grits (-2075)
Maughold Banded Group (-2687)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Maughold Head. Woodcock et al., 1999. 
Reference(s):
Chadwick, R A, Jackson, D I, Barnes, R P, Kimbell, G S, Johnson, H, Chiverell, R C, Thomas, G S P, Jones, N S, Riley, N J, Pickett, E A, Young, B, Holliday, D W, Ball, D F, Molyneux, S G, Long, D, Power, G M and Roberts, D H. 2001. Geology of the Isle of Man and its offshore area. British Geological Survey Research Report, RR/01/06. 
Geological Survey. 1898. Isle of Man. Sheet 36,45,46 and 57. Solid and Drift geology. 1:63 360 scale. Reprinted at 1:50 000 scale by Institute of Geological Sciences 1975 (Southampton: Ordnance Survey). 
Lamplugh G W. 1903. The geology of the Isle of Man. Memoir Geological Survey of Great Britain 
Woodcock N H, Morris J H, Quirk D G, Barnes R P, Burnett D, Fitches W R, Kennan P S and Power G M. 1999. Revised lithostratigraphy of the Manx Group, Isle of Man. 45-68 in 'In sight of the suture' the Palaeozoic geology of the Isle of Man in its lapetus Ocean context. Woodcock N H, Fitches W R, Quirk D G and Barnes R P [editors]. Geological Society of London, Special Publication No. 160. 
Simpson A. 1963. The stratigraphy and tectonics of the Manx Slate Series. Quarterly Journal of the Geological Society of London, Vol. 119, 367-400 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E400