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| Keywords: The Quarterly journal of the Geological Society of London (12683355813).jpg 264 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Mar 19 <br> the Corncockle area the Thornhill district at Mauchline and in the <br> neighhourhood of Dumfries ; 3rd hard thick breccias best seen at <br> the Craigs Dumfries ; and 4th thin-bedded sandstone only slightly <br> developed; occurring at Castledikes Dumfries above the breccias <br> The Dumfries area presents so far as can be seen the same phy- <br> sical geology as the other patches ; it appears to dip from the higher <br> hills and forms a trough through which the River Nith flows <br> Since my memoir on the New Red Sandstone of the southern <br> portion of the Vale of the Nith was written there has been another <br> quarry opened immediately under the south-eastern end of the <br> Maiden-Bower Craigs See Section fig 5 Among the sandstones of <br> Fig 5 ” Sectio7i near Dumfries from Lochar Moss S E to the <br> River Nith N E <br> Georgetown <br> Craig <br> Mid- Craig <br> Maiden's Bower <br> Craig <br> N W <br> Castledikes <br> sandstone <br> Fault <br> e Castledikes sandstone <br> d Breccias <br> c False-bedded sandstones <br> b Flaggy beds with footprints <br> a False-bedded sandstones <br> this quarry which occupy a higher position than those in which the <br> footsteps occur there are seen features which so far as I am aware <br> are peculiar to this spot The lithological characters of some of the <br> strata here show their intimate connexion with the overlying breccias <br> since some of the beds have fine breccias mixed up among them On <br> the surfaces of a few of the higher of these sandstones we have <br> singular markings which at first sight are so remarkable that there <br> is a difficulty in knowing what to make of them They consist of <br> sunken impressions on the upper faces of the beds These markings <br> are in some cases somewhat rhomboidal in form with sharp angles <br> In other cases they have a rib-like appearance ; sometimes they are <br> sinuous and at other times they are cylindrical ; and might be taken <br> for either portions of stems of trees or fragments of large Orthocerata <br> I was at one time disposed to regard them as the result of a peculiar <br> mode of rippling such as would arise from the action of a small rill <br> over a muddy beach ; but the angular character of some of the <br> markings is hostile to this opinion ; and the cylindrical form which <br> they sometimes present is also opposed to this idea I am indebted <br> to my friend Sir William Jardine for the correct explanation as to <br> Loc cit p 396 35338717 109655 51125 Page 264 Text v 12 http //www biodiversitylibrary org/page/35338717 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 35338717 dc identifier http //biodiversitylibrary org/page/35338717 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 N02/12683355813 2015-08-27 12 00 42 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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