MAKE A MEME View Large Image The Quarterly journal of the Geological Society of London (13071265604).jpg 94 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Jan 9 <br> traces of rolling the most minute processes and the most delicate <br> ridges being as perfect as in the ...
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Keywords: The Quarterly journal of the Geological Society of London (13071265604).jpg 94 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Jan 9 <br> traces of rolling the most minute processes and the most delicate <br> ridges being as perfect as in the day when they dropped from <br> the decaying carcases swept down by the current They are <br> therefore in exactly the same position as when they originally <br> dropped from the stranded or floating animal and are not derived <br> from any preexistent mammalian deposit ” a very important fact <br> in determining the palseontological age of the beds <br> Other pits have been opened in the same layer of Brick- earth in <br> the neighbourhood of Ilford and have afforded vast quantities of <br> remains to the cabinets of collectors for the last fifty years Most <br> of them are now closed The Mammalia which are in Dr Cotton's <br> collection were obtained from one of these pits at a depth of 15 feet <br> below the surface or from the same horizon as the head of the Mam- <br> moth indicated in my section fig 1 <br> Fig 2 ” Section at Mr Pearson's Pit Grays Tlmrrock <br> Surface-soil 3 feet <br> Trail from 3 to 4 feet <br> False-bedded sands and lenticular gravel-beds 10 feet <br> G-rey laminated clay with seam of gravel 4 feet <br> Lenticular mass of shells <br> Laminated grey and reddish clays interstratifled with sand and gravel <br> 14 feet <br> Sand and gravel 10 feet <br> llfi ' Chalk <br> /3 Grays Thurrock ” The Brick- earths at Grays Thurrock are <br> situated on the north bank of the Thames about 12 miles to the east <br> of those at Ilford The summit of the ground at Mr Pearson's por- <br> tion of the large brickfield is about 40 feet above the level of the <br> alluvium from which it is separated by a low bank of gravel ; on the <br> north side it abuts against the Thanet Sand ; and at the point where <br> the section fig 2 is taken it rests directly on the chalk occupy- <br> ing an area about one mile long and a quarter of a mile broad between <br> Grays and Little Thurrock On the north side of Mr Pearson's pit <br> the following section is presented ” Immediately on the top of the <br> chalk is a deposit of sharp sand and gravel No 1 consisting of sub- <br> angular and rounded flints with a few pebbles of quartz and contain- <br> ing shells of Anodon Corbicula Unio and other characteristic fossils 36344821 112028 51125 Page 94 Text v 23 http //www biodiversitylibrary org/page/36344821 1867 Geological Society of London NameFound Anodon NameConfirmed Anodon EOLID 4752261 NameBankID 112384 NameFound Corbicula NameConfirmed Corbicula EOLID 10720404 NameBankID 2693586 NameFound Mammalia NameConfirmed Mammalia EOLID 15503955 NameBankID 2478620 NameFound Unio NameConfirmed Unio EOLID 2979542 NameBankID 4388466 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 23 1867 Geology Periodicals Smithsonian Libraries bhl page 36344821 dc identifier http //biodiversitylibrary org/page/36344821 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-10 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13071265604 2015-08-26 14 54 43 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1867 The Quarterly journal of the Geological Society of London 1867 Photos uploaded from Flickr by FĂŚ using a script
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