The BGS Lexicon of Named Rock Units — Result Details

Kilranny Hill Formation

Computer Code: KRY Preferred Map Code: KRY
Status Code: Full
Age range: Arenig Series (OR) — Arenig Series (OR)
Lithological Description: Massive and faintly-bedded, fine to very coarse crystal-lithic arenites, laminated silty and cherty mudstones, well-bedded arenites, and sporadic polymict pebble- to boulder-conglomerate. Contains early Arenig graptolites.
Definition of Lower Boundary: Faulted against serpentinite.
Definition of Upper Boundary: Interdigitates with lavas of the Pinbain Formation.
Thickness: c.380m
Geographical Limits: Girvan - Ballantrae area, southwest Scotland.
Parent Unit: Balcreuchan Group (BCN)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Coast c.180m north of Pinbain Bridge, c.1.5km south of Kennedy's Pass, Girvan, southwest Scotland. Stone, P and Smellie, J L, 1988. 
Reference(s):
Peach, B N and Horne, J. 1899. The Silurian Rocks of Britain, Volume 1. Scotland. Memoir of the Geological Survey of the United Kingdom. 
Stone, P and Smellie, J L, 1988. Classical areas of British Geology: The Ballantrae area: a description of the solid geology of parts of 1:25 000 sheets NX 08, 18 and 19. [London: HMSO for British Geological Survey.] 
Cameron, I B, Stone, P and Smellie, J, 1986. Geology of the Country around Girvan. Explanation of 1:50 000 sheet. British Geological Survey, Sheet 7, Scotland. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable