The BGS Lexicon of Named Rock Units — Result Details
Boyne Limestone Formation
| Computer Code: | BOYL | Preferred Map Code: | BoyL |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ) | ||
| Lithological Description: | Thin-bedded metalimestone, semipelite calc-silicate rock. Old Hythe Limestone Member: finely interbedded semipelite and psammite with lenses of quartzite and white cream metalimestone. Boyne Castle Limestone Member: thin-bedded metalimestone, 200m thick, with minor calc-silicate rock; shows abundant minor folding. Whyntie Brae Limestone Member: calc-silicate rock, laminated and striped, passing upward into semipelite with minor thin metalimestone and lenses of reworked carbonate material. | ||
| Definition of Lower Boundary: | First white limestone at the west side of Old Hythe Bay. | ||
| Definition of Upper Boundary: | Local unconformity at incoming of first major psammite bed (locally gritty) at base of Whitehills Grit Formation. | ||
| Thickness: | c.900m on coastal sections; progressively overstepped southwards by Whitehills Grit Formation. | ||
| Geographical Limits: | From Moray Firth coast (Old Hythe to Whyntie Head) [NJ 609 664 to NJ 630 658] to Hill of Chattie [NJ590 625]. | ||
| Parent Unit: | Tayvallich Subgroup (DBTV) | ||
| Previous Name(s): | Boyne Limestone [Obsolete Name And Code: Use BOYL]
(DBBO)
Whitehills Group (-717) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Coastal section from Old Hythe to Whyntie Head. | ||
| Reference(s): | |||
| Stephenson, D and Gould, D. 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. | |||
| Harris, A L, Haselock, P J, Kennedy, M J and Mendum, J R, 1994. The Dalradian Supergroup in Scotland, Shetland and Ireland. 33-53 in Gibbons, W E and Harris, A L (editors). A revised correlation of Precambrian rocks in the British Isles. Special Report of the Geological Society, London, No.22. | |||
| Stephenson, D, et al. 1993. Stratigraphy and correlation of the Dalradian rocks of the East Grampian Project area. British Geological Survey Technical Report WA/93/91. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S096 | |||