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| Keywords: The Quarterly journal of the Geological Society of London (13958723413).jpg 466 <br> PROCEEDOfGS OF THE GEOLOGICAL SOCIETY Apr 25 <br> Hole valley of such a great denudation as Mr Prestwich supposes <br> to have occurred in the valley of the Somme although we have in <br> both places drift associated with the bones of extinct Mammalia <br> and with rude flint implements at very high levels above the sea <br> Fig 1 ” Longitudinal Section of Mary church Valley <br> E KE W S W- <br> Marychurch <br> i 3 soft <br> «yoft <br> Pholas markings <br> The raised beaches fringing the coast-line in the south-east of <br> England north-east of Prance and south-east of Devonshire as <br> well as the gravels c fronting at similar heights the transverse <br> valleys wMch open in both districts into the English Channel place <br> all these localities in close geological relationship <br> The presence of calcareous deposits on the sides of tlie chalk val- <br> leys in Erance described by Mr Prestwich is matched in Devonshire <br> by a calcareous deposit which has cemented loose blocks of limestone <br> on the solid rock <br> At Watcombe figs 2 3 one mile nortli-east of Kent's Hole Cavern <br> the analogy is still more complete if I am correct in the suggestion <br> that this may be a thick bed of freshwater loess covering the angu- <br> lar drift below it and that both drift and loess are derived from the <br> ruins of the Triassic rocks close by The clay in question is ex- <br> tremely fine and must have been deposited from a most tranquil <br> laket; and yet it is now raised more than 200 feet above the present <br> sea-level <br> Eig 2 ” Longitudinal Seetion along the Valley of Watcomhe <br> w s w <br> s s w <br> Level of Valley TumWed Eock <br> j ig 3 ” Coast-section from Babbacoinhe to Watcomhe <br> E KE <br> X Eorings <br> Seasoning on so many parallel circumstances we must admit a <br> lose analogy between the former condition of the Devonshire and <br> Somme valleys during the gravel-period and may consider that the <br> surface of the Devonian limestone has been so little affected by the <br> t This loess clay is about to be used for terra- cotta figures 36164913 111477 51125 Page 466 Text v 22 http //www biodiversitylibrary org/page/36164913 1866 Geological Society of London NameFound Mammalia NameConfirmed Mammalia EOLID 15503955 NameBankID 2478620 NameFound Pholas NameConfirmed Pholas EOLID 56949 NameBankID 2693919 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 22 1866 Geology Periodicals Smithsonian Libraries bhl page 36164913 dc identifier http //biodiversitylibrary org/page/36164913 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-21 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13958723413 2015-08-26 06 50 44 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1866 Photos uploaded from Flickr by Fæ using a script | ||||
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