| Computer Code: |
GLF |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Bathonian Age (JN)
— Bathonian Age (JN) |
| Lithological Description: |
[Obsolete: use BWL, BWC, RLD] Mudstone, sandstone and limestone. |
| Definition of Lower Boundary: |
The top of the underlying Lincolnshire Limestone Formation. |
| Definition of Upper Boundary: |
The base of the overlying Cornbrash Formation. |
| Thickness: |
0 to 20m |
| Geographical Limits: |
North Lincolnshire and Humberside. Note that this is a superfluous formational name introduced to encompass strata then known as Upper Estuarine Series, Great Oolite Limestone and Blisworth Clay, and now known as Rutland Formation, Blisworth Limestone Formation (previously Snitterby Limestone Formation) and Blisworth Clay Formation respectively. |
| Parent Unit: |
none recorded or not applicable
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| Gaunt, G D, Fletcher, T P and Wood, C J. 1992. Geology of the country around Kingston upon Hull and Brigg. Memoir of the British Geological Survey, sheets 80 and 89 (England and Wales). 172pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E072
E080
E089
|
