| Computer Code: |
MGG |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Marsdenian Substage (CZ)
— Marsdenian Substage (CZ) |
| Lithological Description: |
Generally coarse-grained sandstone, commonly with a significant shaly mudstone parting to 6m in thickness. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
To c.25m |
| Geographical Limits: |
West Yorkshire area (Midgeley Moor, near Halifax). |
| Parent Unit: |
Millstone Grit Group [See Also MIGR] (MG)
|
| Previous Name(s): |
Woodhouse Grit [Obsolete Name And Code: See WOHF And MGG]
(WHGT)
|
| Alternative Name(s): |
Pule Hill Grit
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E077
E086
E078
E070
|
