Computer Code: |
BTK |
Preferred Map Code: |
BTK |
Status Code: |
Pending Upgrade |
Age range: |
Holocene Epoch (QH)
— Holocene Epoch (QH) |
Lithological Description: |
Medium-grained, locally fine- or coarse-grained and locally gravelly sands; sediments represent marine reworking of late Pleistocene fluviatile gravels and shelly marine sands. |
Definition of Lower Boundary: |
Base Holocene. |
Definition of Upper Boundary: |
Passage from nearshore sediments with Spisula Subtruncata bivalve assemblage to fully marine sediments with Angulus Pygmaeus bivalve assemblage. |
Thickness: |
Maximum 5 metres, mostly < 2 metres. |
Geographical Limits: |
Not defined. |
Parent Unit: |
Not Entered (?)
|
Previous Name(s): |
none recorded or not applicable
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
Cameron, T D J, Laban, C, and Schuttenhelm, R T E. 1984. Solid Geology, Quaternary Geology and Sea-Bed Sediments of the United Kingdom and Continental Shelf. British Geological Survey, 1:250 000 series, 52N-02E Quaternary: Flemish Bight, Quaternary Geology, MR/85/38. (Southampton: Ordnance Survey for the British Geological Survey.) |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
none recorded or not applicable |