The BGS Lexicon of Named Rock Units — Result Details

High Lodge Gravel Member

Computer Code: HLOGR Preferred Map Code: notEntered
Status Code: Full
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Sand and gravel of predominantly flint and chalk with quartz and quartzite and traces of far travelled lithologies including Rhaxella chert.
Definition of Lower Boundary: Unconformable boundary, locally channelised, with High Lodge Silt Member
Definition of Upper Boundary: Unconformably overlain by debris flow deposits (Mildenhall Upper Diamicton of Cook et al. p. 59-69 in Lewis et al. 1991)
Thickness: c.8 m (Cook et al. p.59-69 in Lewis et al.1991)
Geographical Limits: Restricted to palaeovalley of the River Bytham, in the Mildenhall area of Suffolk. Not depicted on BGS maps
Parent Unit: Lowestoft Formation (LOFT)
Previous Name(s): Mildenhall Upper Sands And Gravels (-4095)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Temporary excavations about 300m west of High Lodge Farm Ashton et al,1992 
Reference(s):
Ashton, N M. 1992. The High Lodge flint industries. In: Ashton, N M, Cook, J, Lewis, S G, and Rose, J. (eds.) High Lodge: Excavations by G de G Sieveking, 1962-68, and J Cook, 1988 London, British Museum Press 120-123 
Cook, J, Ashton, N, Cooper, G R, Hunt, C O, Lewis, S G and Rose, J.1991.High Lodge, Mildenhall,Suffolk (TL 739 754). p.59-69 in Central East Anglia and the Fen Basin:Field Guide. Lewis, S G ,Whiteman, C A and Bridgland, D R (editors).London:Quaternary Research Association. 
Ashton, N M. 1999. High Lodge Member. p.19 in A revised correlation of Quaternary deposits in the British Isles. Bowen, D Q (editor). London: The Geological Society. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable