| Computer Code: |
WNH |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Bartonian Age (GB)
— Bartonian Age (GB) |
| Lithological Description: |
Very fine- and fine-grained, yellow to orange, ferruginous, laminated silty sand. Bioturbated and cross-bedded. |
| Definition of Lower Boundary: |
Sharp contact with underlying Barton Clay, marked by a seam of ferruginous sand. |
| Definition of Upper Boundary: |
Not seen. The unit is the youngest unit at outcrop where it is overlain by river terrace deposits. |
| Thickness: |
10m. |
| Geographical Limits: |
Hengistbury Head, Hampshire, England. |
| Parent Unit: |
Barton Clay Formation (BAC)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Cliff section at Warren Hill, Hengistbury where up to 10m of fine-grained buff and yellow unfossiliferous cross-bedded sands of the unit overlie glauconitic clays with ironstone nodules. Bristow et al. (1991). |
| Reference(s): |
| Hooker, J J. 1986. Mammals from the Bartonian (middle/late Eocene) of the Hampshire Basin, southern England. Bulletin of the British Museum (Natural History), Vol. 39, 191-478. |
| Gardner, J S. 1879. Description and correlation of the Bournemouth Beds. Part II. Lower or Freshwater series. Quarterly Journal of the Geological Society, Vol. 38, 1-15. |
| Bristow, C R, Freshney, E C, and Penn, I E. 1991. Geology of the country around Bournemouth. Memoir for 1:50 000 geological sheet 329 (England and Wales). HMSO, London. |
| King, C. In press. A correlation of Tertiary rocks in the British Isle and adjacent areas. Special Report of the Geological Society of London, No.12. |
| Hooker, J J. 1975. Reports of a field meeting to Hengistbury Head and adjacent areas, Dorset, with an account of published work and some new exposures. Tertiary Times, Vol.2, 109-121. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E329
|
