| Computer Code: |
BRIDF |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pleistocene Epoch (QP)
— Pleistocene Epoch (QP) |
| Lithological Description: |
Gravel, flint with chert, variably clayey, silty and sandy. |
| Definition of Lower Boundary: |
Erosional on bedrock. |
| Definition of Upper Boundary: |
Present land surface. |
| Thickness: |
Up to 3m. |
| Geographical Limits: |
Forms an almost continuous outcrop adjacent to the western arm of the Eastern Yar River alluvial tract from north of Whitwell through to Bohemia Corner southeast of Rookley, Isle of Wight. |
| Parent Unit: |
Medina River Formation (MEDR)
|
| Previous Name(s): |
Gravel Terraces
(-715)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
The Bridge Farm Gravel Member is closely associated with, and forms a terrace flat 2 to 3 m above the alluvial tract of the western arm of the Eastern Yar River south of Bohemia Corner [SZ 520 836] |
| Reference(s): |
| British Geological Survey. 2013. Isle of Wight. England and Wales Special Sheet incorporating parts of sheets 330, 331, 344, 345. Bedrock and Superficial Deposits. 1:50 000. (Keyworth, Nottingham: British Geological Survey.) |
| Hopson, P M, and Farrant A R. 2014. Geology of the Isle of Wight - a brief explanation of the Isle of Wight Special Geological Map Sheet. Sheet Explanation of the British Geological Survey. Parts of 1:50 0000 Sheets 330 (Lymington), 331 (Portsmouth), 344 (Chale) and 345 (Ventnor) (England and Wales) |
| White, H J O. 1921. A short account of the geology of the Isle of Wight. Memoir of the Geological Survey of Great Britain, (1994 reprint). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
