The BGS Lexicon of Named Rock Units — Result Details
Glenburn Volcaniclastic Member
| Computer Code: | GBV | Preferred Map Code: | GBV |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Arundian Substage (CJ) — Asbian Substage (CR) | ||
| Lithological Description: | Volcaniclastic sandstones and siltstones, purple brown and well bedded. In the Glenburn Borehole volcaniclastic sedimentary rocks and agglomerates are interbedded with several (thin) lava flows. | ||
| Definition of Lower Boundary: | The lower boundary was penetrated by the BGS Glenburn Borehole [2478 6607] which shows that the lavas with interbedded volcaniclastic sedimentary rocks rest upon the Kinneswood Formation. | ||
| Definition of Upper Boundary: | In a waterfall at Craigie Linn [2475 6605] the vocaniclastic sedimentary rocks are overlain by a massive flow of plagioclase-microphyric basalt (Jedburgh type) which here marks the base of the Gleniffer Lava Member. Elsewhere the unit is overlain by the distinctive olivine-bearing plagioclase-macrophyric basalts (Markle type) that are characteristic of the overlying Gleniffer Lava Member. | ||
| Thickness: | 30 m+. | ||
| Geographical Limits: | The Glenburn Volcaniclastic Member is exposed at intervals along the base of the lava scarp on the northern edge of the Beith - Barrhead lava block, from Craigie Linn [NS 475 605] in the Glen Park, Paisley to Harelaw Burn [NS 492 600]. | ||
| Parent Unit: | Clyde Plateau Volcanic Formation (CPV) | ||
| Previous Name(s): | Glen Park Volcanic Detrital Member [Obsolete Name And Code: Use GBV]
(GPVD)
Glenburn Volcanic Detrital Member [Obsolete Name and Code: Use GBV, GPVD] (-4070) Glen Park Volcanic Detrital Member [Obsolete Name and Code: Use GBV] (*782) |
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| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | The BGS Glenburn Borehole penetrates the volcaniclastic sedimentary rocks and lavas of the Glenburn Vocaniclastic Member. A geological description of the borehole is available. IGS, 1981. | ||
| Partial Type Section | Bed of Craigie Linn within Glen Park, Paisley, Scotland. | ||
| Reference(s): | |||
| Hall, I H S, Browne, M A E and Forsyth, I H. 1998. Geology of the Glasgow district. Memoir of the British Geological Survey, Sheet 30E (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. | |||
| Institute of Geological Sciences 1981. IGS Boreholes 1980. Report Institute of Geological Sciences (Great Britain) 81/11 | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S030 | |||