| Computer Code: |
MVSH |
Preferred Map Code: |
MvSh |
| Status Code: |
Full |
| Age range: |
Merioneth Series (EM)
— Tremadoc Series (O1) |
| Lithological Description: |
Greyish green to dark grey mudstone with pale buff dolomitic bands and lenticles. Becomes darker and more carbonaceous downwards. |
| Definition of Lower Boundary: |
Gradational passage down to Monks Park Shale Formation, by increase in content of black carbonaceous mudstone. |
| Definition of Upper Boundary: |
Erosional unconformity. Overstepped by younger arenaceous beds. |
| Thickness: |
About 90m in general area. About 5.05m true thickness in Merevale No.2 Borehole. |
| Geographical Limits: |
Extends from Outwoods north-westwards to just north-east of Woodlands Farm (SP 2978 9620-2849 9870). |
| Parent Unit: |
Stockingford Shale Group (SSH)
|
| Previous Name(s): |
Merevale Shales [Obsolete Name and Code: Use MVSH]
(-4808)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Partial Type Section |
Quarry 180m northwest of Merevale Church. |
| Reference Section |
Merevale No.2 Borehole (SP39NW/6), 701ft-720ft 1in. |
| Reference(s): |
| Lapworth, C, Watts, W W and Harrison, W J, 1898. Sketch of the geology of the Birmingham district. Proceedings of the Geologists' Association of London, Vol.15, p.313-389. |
| 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: |
|
E183
E155
E154
|
