The BGS Lexicon of Named Rock Units — Result Details

Warren Hill Sand Member

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):
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. 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. 
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