| Computer Code: |
LPT |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Arenig Series (OR)
— Arenig Series (OR) |
| Lithological Description: |
A dark grey mudstone, with pale siltstone laminae and sandstone as thin to medium beds locally forming packets up to several tens of metres; debrite (pebbly mudstone) is well developed locally. |
| Definition of Lower Boundary: |
Faulted with the Glen Dhoo Formation, distinguished by a change from a mudstone-dominated facies to a siltstone/sandstone-dominated facies in the overlying Glen Dhoo formation. |
| Definition of Upper Boundary: |
Not seen. |
| Thickness: |
About. 250 m thick. |
| Geographical Limits: |
Isle of Man |
| Parent Unit: |
Manx Group (MANX)
|
| Previous Name(s): |
Lady Port Banded Group and Ballanayre Slump Breccia [Obsolete Name and Code: Use LPT]
(-1044)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Coastal section Will's Strand near Glen Mooar. Woodcock et al., 1999. |
| Reference(s): |
| Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) |
| 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. |
| 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). |
| 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 |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E400
|
