The BGS Lexicon of Named Rock Units — Result Details
Dava Subgroup
Computer Code: | DAVA | Preferred Map Code: | DS |
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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)
Central Highland Migmatite Complex (CEHI) Dava Succession [Obsolete Name and Code: Use DAVA] (-1477) |
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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): | |||
Krabbendam, M. 2021. A stratigraphic framework for the early Neoproterozoic successions of the Northern Highlands of Scotland. UK Stratigraphic Framework Series. British Geological Survey Open Report, OR/21/072. 86pp. | |||
Leslie, A G, Robertson, S, Smith, M, Banks, C J, Mendum, J R, and Stephenson, D. 2013. The Dalradian rocks of the northern Grampian Highlands of Scotland. Proceedings of the Geologists' Association, Vol. 124, 263-317. | |||
Cawood, P A, Nemchin, A A, Smith, M, and Loewy, S. 2003. Source of the Dalradian Supergroup constrained by U-Pb dating of detrital zircon and implications for the East Laurentian margin. Journal of the Geological Society, Vol. 160, 231-246. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S074 S084 S074 S083 |