| Computer Code: |
SKPE |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Very dusky red to black compressible peat to clayey sandy peat. |
| Definition of Lower Boundary: |
Sharp to bioturbated (principally by root development) contact between red to black peat and clayey sandy peat with underlying sands and clays of the Hemingbrough Glaciolacustrine Formation. |
| Definition of Upper Boundary: |
Where preserved, the Skipwith Common Peat Bed is overlain by a sharp to gradational (reworked) contact with sands of the Skipwith Common Sand Member. |
| Thickness: |
To 0.2m |
| Geographical Limits: |
Skipwith Peat Bed is known to occur discontinuously across the Vale of York between the River Ouse in the west and the River Derwent in the east. The maximum northern extent is limited by the termination of the overlying Skipwith Common Sand Member at the Escrick Moraine [SE 585 395]. Auger holes prove the southerly extent as far as North Duffield. |
| Parent Unit: |
Skipwith Sand Member (SKIS)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Across Skipwith Common. Proven consistently in auger holes approximately 100m west of visitors car park off the main Skipwith road. Auger holes typically prove 0.2m of very dusky red, water-saturated, compressible peat at a depth of 0.7 to 0.9m. The Skipwith Peat Bed is overlain by clayey sand of the Skipwith Common Sand Member. The lower contact is transitional via peaty fine sand into silty clay of the Hemingbrough Glaciolacustrine Formation. |
| Reference(s): |
| 1:50k geological map of Selby (Sheet 71) (in prep): Selby Sheet Explantion (in prep). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
