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| Keywords: The Quarterly journal of the Geological Society of London (12736400814).jpg THE CORA LLIAN ROCKS OJF ENGLAND <br> 307 <br> In the first of these quarries fig <br> 7 we have at the top about six leet <br> of magnificent Rag the massive <br> portions growing in lenticular <br> masses with bases not horizontal <br> and the intermediate spaces filled <br> to a large extent with Thecosmilice <br> The reef-corals hero are in a <br> more perfect state of preserva- <br> tion than in any locality we <br> know of and leave little to be <br> desired Beneath the Rag is <br> the uppermost bed of the Lower <br> Calcareous Grit a very remark- <br> able rock composed of very sharp <br> fawn-coloured sand in a calca- <br> reous matrix and containing <br> nodules surrounding Ammonites <br> cordatus or enclosing a nest of <br> shells in which Gylindrites Luidii <br> is abundant It also contains <br> Natica cli/tia Gervillia avicu- <br> loides Ostrea solitaria and Serpula <br> tricarinata and is the uppermost <br> fossiliferous zone of this portion <br> of the series It is irregular <br> in the same quarry and is pos- <br> sibly only a modification of the <br> sands below as where it thins <br> out and is only to be traced <br> just beneath the Coral Rag the <br> sand contains similar nodules <br> here and there The whole is <br> underlain by a strong bed of <br> Calcareous Grit five feet in <br> thickness with Natica marcha- <br> mensis Cylindrites Luidii and <br> Chemnitzia abbreviata which cor- <br> responds to the Natica-bed at <br> Marcham These beds probably <br> represent a later period than the <br> ordinary Lower Calcareous Grit <br> approaching that of the Coralline <br> Oolite <br> In the quarry at the Cumnor <br> cross road we have an equally <br> remarkable development of the <br> Coral Rag but with nothing like <br> the above-described beds under- <br> lying it <br> t- 1 <br> o <br> O <br> p <br> Q <br> o <br> o <br> OTQ <br> /; ; N <br> °M <br> v'M <br> ¢ I u l <br> ' <br> V'v n <br> uU\ <br> M <br> / V « <br> - n <br> UK i <br> / ¢ ' <br> v / '- ¢ i <br> N \ ¢ ¢ I <br> v W <br> V I <br> Mil <br> / V <br> ' N 1 <br> K'tfr <br> sV <br> ¢Â« v I 1 <br> <br> t <br> I M <br> \\'\ <br> l hi <br> / <br> ¢v Y <br> 1 I f <br> / <br> / x N <br> ‚¬h <br> v\ <br> ¢ ¢' - ' <br> v F <br> s <br> / <br> ¢ « / 1 <br> C ' <br> ' ¢ ' K <br> r'H <br> 0« <br> f- ft <br> ' ' 1 <br> v -\ <br> \ <br> 'if <br> / <br> <br> o / i <br> ¢I I nf <br> A \ 1 <br> ' <br> Ml ' <br> y <br> ~ ~ ' p » <br> \ <br> Tim 1 <br> – \; <br> ' ' – <br> ;\V <br> K / <br> \ <br> o 'sj <br> ¢1 <br> / ' l hi a <br> H l' - <br> I <br> <br> ¢ <br> x2 35818436 110705 51125 Page 307 Text 33 http //www biodiversitylibrary org/page/35818436 1877 Geological Society of London NameFound Ammonites cordatus NameConfirmed Ammonites cordatus NameFound Chemnitzia abbreviata NameFound Cylindrites NameConfirmed Cylindrites NameBankID 4133157 NameFound Gervillia NameConfirmed Gervillia NameBankID 4176998 NameFound Natica NameConfirmed Natica EOLID 58662 NameBankID 2684906 NameFound Ostrea solitaria NameFound Serpula tricarinata NameConfirmed Serpula tricarinata NameBankID 5476680 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 33 1877 Geology Periodicals Smithsonian Libraries bhl page 35818436 dc identifier http //biodiversitylibrary org/page/35818436 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-24 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12736400814 2015-08-26 19 52 02 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1877 Photos uploaded from Flickr by Fæ using a script | ||||
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