Computer Code: |
MOBAY |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
Lithological Description: |
Glaciofluvial and glaciolacustrine sediments including sand, silt and laminated clay with subordinate gravel. |
Definition of Lower Boundary: |
Overlies extensive deposits of till probably equivalent of the Kirkham Glacigenic Formation (Irish Sea Coast Glacigenic Subgroup). |
Definition of Upper Boundary: |
Gradational with overlying post-glacial sequence of clay, silt and sand. |
Thickness: |
0 to 18m |
Geographical Limits: |
Cumbria, offshore in Morecambe Bay. |
Parent Unit: |
Irish Sea Coast Glacigenic Subgroup (ISCG)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Section |
Offshore boreholes in Morecambe Bay (Knight, 1977). |
Reference(s): |
Thomas, G S P. 1999. Northern England. 91-98 in Bowen, D Q (Editor), A revised correlation of Quaternary and Neogene deposits in the British Isles. Geological Society Special Report No.23. |
Knight, J K. 1977. Morecambe Bay feasibility study - sub-surface investigations. Quarterly Journal of Engineering Geology, Vol.10. 303-320. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |