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| Keywords: The Quarterly journal of the Geological Society of London (12981044043).jpg PROCEEDINGS OF THE GEOLOGICAL SOCIETY Mar 24 <br> 1 <br> o <br> H-5 <br> I <br> o <br> -I <br> I- <br> ; <br> CO <br> <br> 'l ' <br> <br> CO <br> Ardrossan <br> Fault <br> Quarry <br> Fault <br> Ardneil <br> Portencross <br> 6 <br> OS O Sh <br> Sh JH o <br> c3 <br> b <br> <br> M P- <br> a a Z <br> OOP <br> - -t c3 <br> rt p » <br> S 5 73 <br> kO o l <br> Goldenberrv <br> Hill <br> been forced <br> proof by superposition is wanting <br> no fossils I believe have been found <br> in the red sandstones ; and the coast <br> of Arran opposite gives an example <br> of sandstones and conglomerates <br> indistinguishable in mineral type <br> some superior to and others under- <br> lying the coal-measures Having <br> lately discovered a patch of Silurian <br> rock in this district which appears <br> to me conclusive of the age of the <br> sandstone series it may be worth <br> while to give details of the section <br> From Saltcoats to Ardrossan see <br> fig the coal-measures are seen on <br> the shore dipping S E and con- <br> sisting of the usual alternations of <br> sandstones and shales with imbedded <br> plants beds of coal and limestone <br> Approaching the harbour of Ardros- <br> san these beds dip S E at an angle <br> of 45° when a mass of trap sets in <br> which running out to sea forms a <br> natural breakwater To the north <br> of the trap begin the red sand- <br> stones also dipping S E but at a <br> lower angle They are well ex- <br> hibited in a quarry immediately <br> north of the town The top beds <br> are of a marly nature ; and it is <br> only near the bottom of the section <br> – 1 that the strata contain a few pebbles <br> of white quartz Por four miles the <br> shore is composed of the same forma- <br> tion still dipping S E until we <br> reach a point where the beds for <br> a short distance dip N W at a low <br> angle ; a little further to the N <br> near the House of Ardneil the sand- <br> stones are vertical for several yards <br> after which we arrive at a spot where <br> a sudden change in the rock attended <br> with the greatest disturbance is <br> exhibited A mass of light- and <br> dark-green claret- coloured and <br> black shales and arenaceous schists <br> veined with calc- spar and contorted <br> in every conceivable way has here <br> up through the sandstones and conglomerates which <br> a <br> o <br> o <br> S <br> © o <br> H d <br> p- O ts <br> © fl o g <br> O © O © 36161539 111474 51125 Page 2 Text v 15 http //www biodiversitylibrary org/page/36161539 1859 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 15 1859 Geology Periodicals Smithsonian Libraries bhl page 36161539 dc identifier http //biodiversitylibrary org/page/36161539 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-07 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12981044043 2015-08-26 14 58 34 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1859 Photos uploaded from Flickr by Fæ using a script | ||||
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