| Computer Code: |
MPSH |
Preferred Map Code: |
MPSh |
| Status Code: |
Full |
| Age range: |
Merioneth Series (EM)
— Merioneth Series (EM) |
| Lithological Description: |
Grey micaceous shaly mudstones in lower part. Black, locally calcareous and phosphatic mudstones in upper part. |
| Definition of Lower Boundary: |
Passage from underlying Moor Wood Formation marked by incoming of silty micaceous laminae and thin sandstone beds. |
| Definition of Upper Boundary: |
At the upper limit of a transition zone of alternating black and greenish grey mudstones, into overlying, predominantly black, Merevale Shales. |
| Thickness: |
75 to 80m in general. 38m minimum in Merevale No.2 Borehole. 82m minimum in Merevale No.1 Borehole. |
| Geographical Limits: |
From the area west of Mancetter Quarry, extending northwestwards to just north of Merevale Hall (3072 9490 - 2954 9765). |
| Parent Unit: |
Stockingford Shale Group (SSH)
|
| Previous Name(s): |
Monks Park Shales [Obsolete Name and Code: Use MPSH]
(-4802)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
(Including lower boundary). Merevale No. 1 Borehole (SP29NE/16), 107' 6"- 377' 4". |
| Reference Section |
(Including upper boundary) Merevale No. 2 Borehole (SP39NW/6), 720' 1"- 846' 6". (Base not penetrated). |
| Type Area |
Sparse brash seen in fields. |
| Reference(s): |
| Baldock, J W. 1991. Geology of the Hartshill and Stockingford districts, Nuneaton. British Geological Survey Technical Report, WA/91/60. |
| Illing, V C, 1913. Recent discoveries in the Stockingford Shales near Nuneaton. Geological Magazine, Vol.10/5, p.452-453. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E155
E154
|
