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| Keywords: The Quarterly journal of the Geological Society of London (14096518233).jpg 494 <br> REV A lETl TG 0 T A GEIfEEAL SECTIO OF THE <br> ITppee BAGSHOT J <br> 23 feet 1 <br> MrDDLE Bagshot <br> 76 feet <br> Fig 1 Vertical Section of Bagshot Strata disclose d in the Trials <br> boring for the Deep Well at Wellington College Scale 40 feet <br> 1 inch <br> 285 feet above Ordnance datum-line <br> Stirfaee-drift enclosing angular flints 1 foot <br> Bnff-coloured sand Upper Bagshot 12 feet <br> G-rey sand -with dark olive-green and black grains 10 <br> feet rather exceptional at this horizon <br> Well-worn pebbles of black flint in sand 1 foot <br> Buff-coloured sand and loam 6 feet scattered green <br> and black grains and pipe-clay <br> Drab-coloured sandy clay 9 feet in some sections <br> laminated <br> Well-rolled pebbles of black flint in sand 3 feet <br> LOWEEsBAGSHOT <br> about 120 feet <br> LoKDON Clay <br> Green sand yielding some water at the bottom 31 <br> feet <br> Sand of a dark green tint Tfeet Much water <br> Fine clay in part a pure pipe-clay 6 feet <br> Continuation of the next above but of darker shade <br> 14 feet <br> Sand grey with olive-green grains 46 feet This is <br> simply a dirty quartzose sand <br> Continuation of the above with rather more oxidized <br> iron on the grains 46 feet <br> Indurated arenaceous clay stained with carbon 3 feet <br> Blackened marl and clay l amin ated in its upper <br> portion 35 feet <br> JN'OTE To the 23 feet of Upper Bagshot Sands <br> shown in this section we must add another 100 feet <br> and more for the total thickness of these sands as they <br> exist at present elsewhere in the district The neigh- <br> bouring hills on which the Cruninal Lunatic Asylum <br> is situated reach a height of 400 feet and the continu- <br> ation of the beds of the upper portion of this section <br> beneath those hills is proved in numerous well-sections <br> in the village of Crowthorne We must have there- <br> fore a thickness of about 140 feet of Upper Bagshot <br> Sands preserved in this neighbourhood 37047372 114009 51125 Page 494 Text 41 http //www biodiversitylibrary org/page/37047372 1885 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 41 1885 Geology Periodicals Smithsonian Libraries bhl page 37047372 dc identifier http //biodiversitylibrary org/page/37047372 smithsonian libraries Information field Flickr posted date ISOdate 2014-04-30 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/14096518233 2015-08-26 04 53 52 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1885 Photos uploaded from Flickr by FĂŚ using a script | ||||
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