| Computer Code: |
MCSH |
Preferred Map Code: |
McSh |
| Status Code: |
Full |
| Age range: |
St David's Series (ED)
— St David's Series (ED) |
| Lithological Description: |
Grey to dark grey, sporadically greenish, micaceous and pyritic mudstone with common current ripple-bedded sandy wisps. Common beds of grey, fine-grained, disturbed, glauconitic sandstone. |
| Definition of Lower Boundary: |
Sedimentary break. Basal conglomerate with mudstone clasts and quartz pebbles rests on dark grey mudstone of Abbey Formation. |
| Definition of Upper Boundary: |
Gradational with Outwoods Formation. Taken at level below which dark pyritic mudstone, typical of Outwoods Formation, becomes insignificant. |
| Thickness: |
General range 30 - >75m. 58m in reference section. |
| Geographical Limits: |
Extends from Nuneaton, northwestwards to the southern suburbs of Atherstone (SP 3630 9171 - SP 3063 9715). |
| Parent Unit: |
Stockingford Shale Group (SSH)
|
| Previous Name(s): |
Mancetter Grits and Shales [Obsolete Name and Code: Use MCSH]
(-2316)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
Merevale No.3 Borehole, (SP39NW/7) 518ft 3ins-709ft 3ins |
| Type Area |
Sparse exposures and brash on a ridge 300m west of White House Farm. |
| Reference(s): |
| Taylor, K and Rushton, A W A, 1971. The pre-Westphalian geology of the Warwickshire Coalfield. Bulletin of the Geological Survey of Great Britain, No.35. |
| Baldock, J W. 1991. Geology of the Hartshill and Stockingford districts, Nuneaton. British Geological Survey Technical Report, WA/91/60. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E155
|
