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| Keywords: The Quarterly journal of the Geological Society of London (12683208915).jpg 262 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Mar 19 <br> Sandstone-area of Maucliliney Ayrshire ” We have now to leave <br> Dumfriesshire and go to near the centre of the adjoining county <br> Ayrshire In this district around Mauchline there is another patch <br> of red sandstone and breccias exhibited About a quarter of a mile <br> to the south of the Mauchline Station this sandstone is worked It <br> possesses all the features which characterize the false-bedded sand- <br> stones above the breccias in the several Dumfriesshire areas and <br> seems to be of considerable thickness About half a mile further <br> south at Ballochmoyle in the course of the Water of Ayr we have <br> a beautiful section exhibiting these sandstones and the strata upon <br> which they repose <br> Immediately above the bridge over the Railway the red sandstones <br> dip N 50° W at an angle of 15° ; and as we go up the Water of <br> Ayr from newer to older beds we see a great change taking place <br> in the nature of the deposits <br> The lowest strata of the sandstones are soft and rest upon a thick <br> series of breccias which in appearance are like those at the south <br> entrance of the Drumlanrig tunnel and consist of angular fragments <br> of amygdaloid in the cavities of which are nests of zeolitic minerals <br> In the highest portions of these breccias there are thin beds of a <br> siliceous limestone of a purplish colour but in these I found no <br> organic remains See Section fig 4 In going up the stream from <br> Fig 4 ” Section near Ballochmoyle Water of Ayr Ayrshire <br> c False-bedded sandstones <br> b b Impure limestone <br> a a Breccia <br> the higher to the lower beds of the breccia we come upon a trap- <br> dike which cuts off the beds and from which the fragments entering <br> into the composition of the breccias have been obtained ; and on the <br> eastern side of the dike we have Carboniferous grits similar to those <br> which surround the sandstones of the Thornhill area <br> The association of the several rocks here is intimately connected <br> with what is seen at the entrance of the Drumlanrig tunnel the only <br> difference being that at Ballochmoyle we have a more perfect section 35338715 109655 51125 Page 262 Text v 12 http //www biodiversitylibrary org/page/35338715 1856 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 12 1856 Geology Periodicals Smithsonian Libraries bhl page 35338715 dc identifier http //biodiversitylibrary org/page/35338715 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-21 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12683208915 2015-08-27 11 52 30 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1856 Photos uploaded from Flickr by Fæ using a script | ||||
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