Computer Code: | MHL | Preferred Map Code: | notEntered |
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Status Code: | Full | ||
Age range: | Arenig Series (OR) — Arenig Series (OR) | ||
Lithological Description: | A pale grey, thin to thick-bedded quartz arenite sandstonr, peripheral parts with interbedded laminated mudstone and siltstone | ||
Definition of Lower Boundary: | The stratigraphical with the Lonan Formation at the base, is marked by a change from a mudstone-dominated facies to a sandstone-dominated facies | ||
Definition of Upper Boundary: | The stratigraphical contact at the top is marked by a change from a sandstone-dominated facies to mudstone-dominated facies. | ||
Thickness: | 40-400 m | ||
Geographical Limits: | Isle of Man | ||
Parent Unit: | Manx Group (MANX) | ||
Previous Name(s): | Maughold Banded Group
(-2687)
Agneash Grits (-2075) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | The west side Chapel Bay, Port St Mary. 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. | |||
Lamplugh G W. 1903. The geology of the Isle of Man. Memoir Geological Survey of Great Britain | |||
Simpson A. 1963. The stratigraphy and tectonics of the Manx Slate Series. Quarterly Journal of the Geological Society of London, Vol. 119, 367-400 | |||
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. | |||
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). | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E400 |