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| Keywords: The Quarterly journal of the Geological Society of London (13071403944).jpg 452 <br> PEOCEEDllirGS or THE GEOLOGICAL SOCIETY <br> r <br> ˘ Ss <br> <br> <br> m <br> m <br> s <br> - 5k <br> bcg <br> O S S o <br> h ' <br> o o <br> evidences of the mighty agent <br> which ages since caused the ele- <br> vation of the many thousands of <br> feet of stratified rocks which are <br> comprised in the Old Eed Sand- <br> stone the Carboniferous Lime- <br> stone and the Coal-measures of <br> the Mendips This is visible in <br> a basaltic dyke of considerable <br> thickness emerging from beneath <br> the Old Red Sandstone at East <br> End near Stoke Lane and also <br> under the Ridgeway which forms <br> the most elevated part of this line <br> of hills <br> My attention was directed to <br> the spot by the report that some <br> peculiar minerals occurred there <br> The dyke was not however visi- <br> ble at the surface and I had to <br> remove the turf atdiiferent points <br> immediately under which it ap- <br> peared in a deep-green-coloured <br> basalt all the minutest cracks and <br> fissures of which were permeated <br> by manganese giving its outer <br> surface a dark purple tinge <br> Erom the general physical cha- <br> racter of the Mendips it is not <br> improbable that the dyke is co- <br> extensive with the range East <br> and west of a line of which Stoke <br> Lane forms nearly the centre for <br> a distance of seven miles there is <br> an uninterrupted anticlinal The <br> direction of the dyke from East <br> End towards Frome is evidently <br> south of Leigh-on-Mendip and <br> between that village and Down- <br> head and thence to Little Elm <br> a distance of about four miles <br> It then probably passes through <br> and has modified the Carbonife- <br> rous Limestone of the valleys <br> west of Erome and has left its <br> last physical evidences at Oldford <br> a mile north-east of that town <br> where the Old Red Sandstone is <br> greatly contorted and disappears <br> in that direction under the Ful- <br> ler's Earth 36345207 112028 51125 Page 452 Text v 23 http //www biodiversitylibrary org/page/36345207 1867 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 23 1867 Geology Periodicals Smithsonian Libraries bhl page 36345207 dc identifier http //biodiversitylibrary org/page/36345207 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-10 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13071403944 2015-08-26 13 54 44 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1867 Photos uploaded from Flickr by Fæ using a script | ||||
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