The BGS Lexicon of Named Rock Units — Result Details
Wet Side Edge Tuff Member
| Computer Code: | WSE | Preferred Map Code: | WSE |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Caradoc Series (O4) — Caradoc Series (O4) | ||
| Lithological Description: | Brown-weathered, massive, eutaxitic andesitic lapilli-tuff. | ||
| Definition of Lower Boundary: | Base of andesitic lapilli-tuff. Markedly unconformable on the succession of basaltic to dacitic lavas in the Birker Fell Andesite Formation. | ||
| Definition of Upper Boundary: | At base of overlying unnamed bedded tuff, member of the Whorneyside Tuff Formation. | ||
| Thickness: | 0 - 290m | ||
| Geographical Limits: | Watendlath, Borrowdale, to Scafell, Langdale, Wet Side Edge - Duddon Valley - Stainton Pike, Cumbria. | ||
| Parent Unit: | Whorneyside Tuff Formation (WNY) | ||
| Previous Name(s): | Wet Side Edge Member [Obsolete Name and Code: Use WSE]
(-4982)
Whorneyside Ignimbrite [Obsolete Name and Code: Use WSE] (-4983) Wet Side Edge Formation [Obsolete Name and Code: Use WSE] (-2539) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Wet Side Edge. | ||
| 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. | |||
| Branney, M J. 1991. Eruption and depositional facies of the Whorneyside Tuff Formation, English Lake District: an exceptionally large-magnitude phreatoplinian eruption. Bulletin of the Geological Society of America, Vol. 103, 886-897. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E038 E029 | |||