The Volcanic Complex of Calton Hill (Derbyshire)

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Abstract
The Carboniferous volcanic rocks of Derbyshire have been already described by A. Geikie, H. H. Arnold-Bemrose, and Mr. H. G. Sargent, and in particular Dr. Bemrose has published a paper dealing specially with the inclusions in the Calton Hill basalt. The subject, however, is by no means exhausted. Since the opening of a road-metal quarry at Calton Hill, a new and most interesting section has come into view, the study of which led me to undertake a detailed investigation of the volcanic complex of Calton Hill and the related lavas of Miller's Dale. Calton Hill is situated 3½ miles east of Buxton, and a mile and a half south-west of Miller's Dale station. Seen from the north, it appears as a clearly outlined rounded hill, standing as a buttress against the escarpment of Chelmorton Low. Its height is 1319 feet above O. D., and it rises about 200 feet above the general level of the limestone plateau. It is situated in the horizon of the upper lava (‘loadstone’) which, according to Dr. T. F. Sibly, occurs in the Carboniferous Limestone between Zones D 1 and D 2 . On the north-eastern slope of Calton Hill, approximately a third of the way up, is situated the newly developed road-metal quarry. It is entered by a narrow level-cutting and is roughly divided into three separate bays. Fig.1.— Geological sketch-map of the road-metal quarry at Calton Hill (Derbyshire) . Fig. 2.— Profile of the quarry-cutting at Calton Hill . Fig.3.— West-to-East section of the quarry at the Calton Hill . The Rather

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