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| Keywords: The Quarterly journal of the Geological Society of London (13204896475).jpg CEETABSr EIVER-V ALLEYS IN LINCOLNSHIRE <br> 597 <br> whatever extent these longitudinal valleys might proceed none of <br> the waters coming down them could ever cross the lowest original <br> transverse valley that was formed by the little primary river ; and <br> he points out that the river Blackwater has never crossed the <br> primary transverse channel which runs southward from Cappoquin <br> in Waterford and never could do so unless something happened to <br> cut a channel lower down the remainder of the longitudinal valley <br> to Dungarvan Bay and deeper than the channel already cut down <br> to Toughal Bay <br> Fig 1 � Diagram of a Stream intercepting earlier Transverse <br> Streams <br> To suppose the possibility of such a channel being formed in any <br> case was entirely outside the scope of Jukes's argument ; but the sequel <br> will show that it is worth while considering this possibility and <br> calculating the results which would follow from the development of <br> such a channel <br> Fig 2 � Diagram of probable changes in the Valley of <br> the Blackwater <br> Suppose therefore that a small stream ran into Dungarvan Bay as <br> at S in fig 2 and that while the valley of the Blackwater was ex- <br> tending itself westward from Cappoquin the valley of the stream S <br> was also extending itself westward from the coast It is clear that 36929248 113681 51125 Page 597 Text 39 http //www biodiversitylibrary org/page/36929248 1883 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 39 1883 Geology Periodicals Smithsonian Libraries bhl page 36929248 dc identifier http //biodiversitylibrary org/page/36929248 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-16 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13204896475 2015-08-26 12 51 43 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1883 Photos uploaded from Flickr by Fæ using a script | ||||
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