Keratophyre from UK


UK
Scotland Scottish Borders Peebles ⓘ Winkston Hill lava outcrops	Thirwall, M. F. (1981). Peralkaline rhyolites from the Ordovician Tweeddale lavas, Peebleshire. Geol. J. Chicago, 16, 41-44. doi.org/10.1002/gj.3350160104 Eckford, R. J. A., & Ritchie, M. (1931). The lavas of Tweeddale and their position in the Caradocian sequence. Mem. Geol. Surv. Summ. Prog, 46-71.
Wales Pembrokeshire Marloes and St Brides ⓘ Skomer Volcanic Group	Thorpe, R. S., Leat, P. T., Bevins, R. E., & Hughes, D. J. (1989). Late-orogenic alkaline/subalkaline Silurian volcanism of the Skomer Volcanic Group in the Caledonides of south Wales. Journal of the Geological Society, 146(1), 125-132. doi.org/10.1144/gsjgs.146.1.0125 Ziegler, A. M., McKerrow, W. S., Burne, R. V., & Baker, P. E. (1969). Correlation and environmental setting of the Skomer Volcanic Group, Pembrokeshire. Proceedings of the Geologists' Association, 80(4), 409-439. doi.org/10.1016/S0016-7878(69)80031-3 Thomas, H. H. (1911). The Skomer Volcanic Series (Pembrokeshire). Quarterly Journal of the Geological Society, 67(1-4), 175-214. doi.org/10.1144/GSL.JGS.1911.067.01-04.07

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