Computer Code: |
WPIT |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Anglian Stage (QA)
— Anglian Stage (QA) |
Lithological Description: |
The Woolpit Beds comprise silty clay, clayey silt and silty fine-grained sand. A detailed account is given in Bristow and Gregory (1982). Borehooles have yielded a sparse foraminiferal fauna. The Woolpit Beds are underlain and overlain by chalky till. It is generally assumed that the till is Lowestoft Formation, although this had not been proved. |
Definition of Lower Boundary: |
The Woolpit Beds overlie chalky till of the Lowestoft Formation. |
Definition of Upper Boundary: |
The Woolpit Beds are either at outcrop or are overlain by glaciofluvial sand and gravel and till of the Lowestoft Formation. |
Thickness: |
Maximum recorded thickness in boreholes is 23.25 m. BGS Registered No. TL96SE/158. |
Geographical Limits: |
The Woolpit Beds occupy a 1 km-wide depression in the Lowestoft Formation at Woolpit, Suffolk. |
Parent Unit: |
Lowestoft Formation (LOFT)
|
Previous Name(s): |
Brickearth
(BRK)
|
Alternative Name(s): |
none recorded or not applicable
|
Stratotypes: |
Type Area |
Sediments infilling a 1 km-wide depression in chalky till (of the Lowestoft Formation) at Woolpit, Suffolk. Bristow and Gregory, 1982. |
Type Section |
Woolpit No.3 Borehole. BGS Registered No. TL96SE/158 proved 23.25 m of Woolpit Beds. The borehole was sunk in the floor of a brickpit, some 7.5 m deep. Bristow, 1990; Bristow and Gregory, 1982. |
Reference(s): |
Bristow, C R and Gregory, D M. 1982. Notes on the high-level.(?marine) Late-Anglian Woolpit Beds, Suffolk. Transactions of the Suffolk Naturalists Society, Vol.18, 310-317. |
Bristow, C R. 1990. Geology of the country around Bury St Edmunds. Memoir of the British Geological Survey, Sheet 189 (England and Wales). |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E189
E190
|