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| Keywords: The Quarterly journal of the Geological Society of London (13368987863).jpg 1873 <br> JtTDD THE SECONDARY ROCKS OP SCOTLAND <br> 133 <br> 3 o-S <br> a 2 SP -Mfq <br> Since my return to England my <br> obscurely in the gorges cut <br> through the drifts by the <br> Easter and Wester Garty <br> Burns and the Lothbeg <br> river <br> Here then we have proof <br> that the great fault which <br> has brought about the juxta- <br> position of the Primary and <br> Secondary strata in Suther- <br> land has through about five <br> miles of its course become <br> double the strata on the <br> south-east having been let <br> down by two steps instead <br> of one ; and thus a strip of <br> an intermediate formation <br> has been preserved Similar <br> phenomena on a smaller <br> scale are familiar to all <br> field-geologists who have <br> mapped greatly faulted dis- <br> tricts <br> We have thus shown that <br> the preservation of the in- <br> teresting patches of Secon- <br> dary strata in the north-east <br> of Scotland is entirely due to <br> the concurrence of a series of <br> favourable accidents First <br> among these both in order of <br> time and in importance we <br> must rank those great dislo- <br> cations which have brought <br> the strata in question into <br> apposition with rocks of so <br> much greater hardness and <br> capability of resisting de- <br> nuding forces The general <br> strike of these great faults <br> is from N E to S W ; and <br> they doubtless constitute a <br> portion of the results of that <br> great and long-continued <br> series of disturbances which <br> have so largely contributed <br> to the production of the phy- <br> sical features of this island <br> The influence of this great <br> indefatigable friend Mr Joass informs 39051037 120601 51125 Page 133 Text v 29 http //www biodiversitylibrary org/page/39051037 1873 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 29 1873 Geology Periodicals Smithsonian Libraries bhl page 39051037 dc identifier http //biodiversitylibrary org/page/39051037 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-24 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13368987863 2015-08-26 10 54 46 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1873 Photos uploaded from Flickr by Fæ using a script | ||||
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