The BGS Lexicon of Named Rock Units — Result Details

Harrison Stickle Breccia Member

Computer Code: HTK Preferred Map Code: Htk
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Lithologically variable succession of pebble-grade breccia, pebbly sandstone and lapilli-tuff
Definition of Lower Boundary: Taken at the base of dominantly pebble breccia units overlying bedded volcaniclastic sedimentary rocks of the Three Tarns Member.
Definition of Upper Boundary: Defined by the base of overlying volcaniclastic rocks of the Dungeon Ghyll Sandstone Member
Thickness: Up to 30m
Geographical Limits: Bow Fell and Langdale Pikes, Cumbria
Parent Unit: Seathwaite Fell Sandstone Formation (SET)
Previous Name(s): Harrison Stickle Member (-1605)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Harrison Stickle, Langdale, Cumbria Kneller and McConnell, 1993 
Reference(s):
Millward, D, Johnson, E W, Beddoe-Stephens, B, Young, B, Kneller, B C, Lee, M K, Fortey, N J, Allen, P M, Branney, M J, Cooper, D C, Hirons, S, Kokelaar, B P, Marks, R J, McConnell, B J, Merritt, J W, Molyneux, S G, Petterson, M G, Roberts, B, Rundle, C C, Rushton, A W A, Scott, R W, Soper, N J and Stone, P. 2000. Geology of the Ambleside district. Memoir of the British Geological Survey, England and Wales, Sheet 38. 
Kneller B C and McConnell, B J . 1993. The Seathwaite Fell Formation in the central Fells. British Geological Survey Technical Report WA/93/43 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable