| Computer Code: |
STRV |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Arundian Substage (CJ)
— Asbian Substage (CR) |
| Lithological Description: |
The Stronend Volcaniclastic Member consists predominantly of volcaniclastic sedimentary rocks and possible tuff, with weathered basalt lava (including 'bole') and the member weathers back to form a prominent shelf in the escarpment on the western side of the Fintry Hills. |
| Definition of Lower Boundary: |
Weathered basalt ('bole') at the base of the member is conformable or disconformable on plagioclase-microphyric basalt lava of the Spout of Ballochleam Lava Member, within which the Stronend Volcaniclastic Member is interdigitated. |
| Definition of Upper Boundary: |
Volcaniclastic rocks of the Stronend Volcaniclastic Member are overlain by plagioclase-microphyric basalt lava of the Spout of Ballochleam Lava Member, within which the Stronend Volcaniclastic Member is interdigitated. |
| Thickness: |
Uncertain |
| Geographical Limits: |
The member is restricted to the western Fintry Hills, north-east of Glasgow. These rocks crop out out in a restricted area from the western side of Stronend [NS 6274 8953] to the south-south-east, to north of Double Craig [NS 6322 8808]. |
| Parent Unit: |
Clyde Plateau Volcanic Formation (CPV)
|
| Previous Name(s): |
Stronend Interbasaltic Beds
(-548)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Reference Section |
0.5 km south of Stronend summit, western Fintry Hills, north-east of Glasgow. Francis et al., 1970. |
| Type Area |
In the western Fintry Hills, north-east of Glasgow. Francis et al., 1970. |
| Reference(s): |
| Francis, E H, Forsyth, I H, Read, W A and Armstrong, M. 1970. The geology of the Stirling district. Memoir of the Geological Survey of Great Britain, Sheet 39 (Scotland). |
| Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S039
|
