The BGS Lexicon of Named Rock Units — Result Details

Dava Subgroup

Computer Code: DAVA Preferred Map Code: DS
Status Code: Full
Age range: Tonian Period (AT) — Tonian Period (AT)
Lithological Description: Heterogenous succession of predominantly gneissose psammite, semipelite and subordinate quartzite.
Definition of Lower Boundary: Not exposed.
Definition of Upper Boundary: Sheared, tectonised or interpreted unconformable contact with overlying Grampian Group strata.
Thickness: Unknown.
Geographical Limits: Central Highlands of Scotland, Glen Bachor, and between Strathnairn and Grantown-on Spey.
Parent Unit: Badenoch Group (BADN)
Previous Name(s): Central Highland Migmatite Complex (CEHI)
Dava Succession (-1477)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Flichity Ridge, Between Strathnairn and Upper Strathdearn. 
Reference Section  Slochd-Insharn Roadcuts in A9 and in low hills to south. 
Reference(s):
Gillespie, M R, Campbell, S D G, and Stephenson, D. 2011. BGS classification of lithodemic units: a classification of onshore Phanerozoic intrusions in the UK. British Geological Survey Research Report, RR/12/01. 58pp. 
Fletcher, T P et al. 1996. Geology of the Fortrose and eastern Inverness district. Memoir of the British Geological Survey, Sheet 84W (Scotland). 
Highton, A J, 1999. Solid geology of the Aviemore district, Memoir for 1:50000 geological sheet 74E [Scotland]. London: The Stationery Office. 97pp. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S074 S084 S074 S083