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| Keywords: The Quarterly journal of the Geological Society of London (13365302705).jpg 1850 <br> PRESTWICH ON THE LOWER TERTIARY STRATA <br> 271 <br> Panopsea intermedia Sow Fusus <br> Pectunculus Plumsteadiensis Sow Ostrea <br> Cardium n sp a Teeth of Lamnae <br> Astarte <br> We now enter upon a tract of country which is so thickly and <br> uniformly covered by beds of gravel and boulder clay drift that it is <br> rarely that the smallest section of the tertiary beds is visible Oc- <br> casionally where the chalk is worked we find a small capping of the <br> sands and mottled clays immediately overlying it ; but taking the line <br> of country by Stanstead Bishop Stortford Easton near Dunmow to <br> Great Yeldham I have not been able to find a single section of the <br> basement bed of the London clay <br> Between Yeldham and Sudbury in Suffolk however in a brick-field <br> on the brow of the hill near the village of Gestingthorpe there is a <br> small section in which the basement bed of the London clay may I <br> think be identified although the only fossils 1 could find in it were <br> the teeth of the usual species oiLamna See fig 17 <br> Fig 17 ” Section at Gestingthorpe <br> s <br> a Boulder clay drift <br> b London clay; upper part of brown sandy clay with the com- <br> mon bluish facets and containing a few small sandy ochreous <br> concretions ; passes down into yellowish sand laminated with <br> greyish clay No organic remains yet found <br> c Roimd flint pebbles in sand and clay <br> mon No other fossils <br> d Bright yellow sands <br> Teeth of LamncB com- <br> The chalk outcrops near the base of the hill at a depth probably <br> not exceeding sixty to eighty feet beneath c Continuing over the <br> same irregular hilly district intersected by narrow and small river- <br> valleys we pass by Sudbury and Layland to Hadleigh On a hill <br> one mile E N E of this town the lower beds of the London clay <br> are worked together with the underlying sands See fig 18 <br> Fig 18 ” Section near Hadleigh <br> liVf- / V ;v -v Mixed clay and gravel <br> London clay ; brown clay passing downwards into a <br> - dark grey sandy clay with a few shells and teeth <br> of Lamnoe <br> c Round flint pebbles in sand and clay with teeth of <br> LamncBt <br> d Light-coloured sands <br> The chalk crops out at a short distance below this pit <br> This section with two near Hadleigh and three or four near Ipswich re- <br> quire further examination <br> VOL VI ” PART I X 36934126 113689 51125 Page 271 Text v 6 http //www biodiversitylibrary org/page/36934126 1850 Geological Society of London NameFound Cardium NameConfirmed Cardium EOLID 50301 NameBankID 2693257 NameFound Fusus NameConfirmed Fusus EOLID 2988518 NameBankID 4173880 NameFound Ostrea NameConfirmed Ostrea EOLID 10719983 NameBankID 2692450 NameFound Panopsea intermedia NameConfirmed Panopaea intermedia NameFound Pectunculus NameConfirmed Pectunculus EOLID 4728114 NameBankID 4286045 NameFound Plumsteadiensis Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36934126 dc identifier http //biodiversitylibrary org/page/36934126 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-23 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13365302705 2015-08-26 11 50 14 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1850 Photos uploaded from Flickr by Fæ using a script | ||||
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