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| Keywords: The Quarterly journal of the Geological Society of London (13365193983).jpg 152 PROCEEDINGS OF THE GEOLOGICAL SOCIETY Nov 21 <br> At the Praia de Lagoa near the preceding <br> Natica praelonga Deshayes Pholadomya Royana UOrh <br> At the Praia de Adrarga north of the Cintra hills <br> Nerinsea Archiraedis D'Orb Pecten striato-costatus Goldf <br> cylindrica Voltz Trigonia caudata rasse r T scabra <br> Pyramidella sagittata n s Morris's Catalogue <br> Ostraea colubrina Lam <br> At Fontanellas north of Cintra <br> Cardium corrugatum n s <br> Both at the Praia de Adrarga and the Praia de Ma9ams the hme- <br> stones have been disturbed by various eruptions of trap which appear <br> to have burst out during the formation of the subcretaceous beds with <br> some of which they are very irregularly interstratified while others <br> are displaced by them in connection with the trap is a mass of ar- <br> gillaceous breccia evidently of igneous origin and of considerable <br> thickness which interrupts the series of stratified deposits These <br> trappean beds are continued in a band round the Cintra hills but <br> they do not belong to one formation as described in my former paper <br> Trans vol vi p 122 but pass through the different rocks which <br> encircle the granite <br> The beds of the calcareous middle division of the subcretaceous <br> series cover the country north of Cintra for many miles extending <br> beyond Mafra and Ericeira and resting upon ferruginous sands which <br> on the Caldas road are met with before reaching Torres Vedras <br> The lowest part of the subcretaceous series is largely developed in <br> the district which lies to the north-east of Lisbon bounded by the <br> Tagus from near Verdelha to Villa Franca The great elevatoiy <br> movement which has thrown up the Jurassic rocks of Monte Junto <br> was continued with less intensity to the southward as far as Alhandra <br> raising up all the lower beds of the subcretaceous series into an anti- <br> clinal of which the axis meets the Tagus at that place This is seen <br> in section No 4 fig 5 which shows the position of the beds along <br> the bank of the Tagus from Verdelha to Villa Franca <br> Fig 5 <br> Section No 4 Bank of the Tagus near Alhandra <br> Limestone alternating with sandstone Sand g <br> '3 2 a Subcretaceous Series <br> Tertiary <br> The same series of beds is crossed by the section No 5 fig 6 <br> drawn nearly parallel to the last from Bucellas to Alenquer along a <br> line of traverse which I examined in some detail <br> From Bucellas to Befugidos a distance of about seven and a half 36933977 113689 51125 Page 152 Text v 6 http //www biodiversitylibrary org/page/36933977 1850 Geological Society of London NameFound Cardium corrugatum NameConfirmed Corticium corrugatum Fr Fr 1838 EOLID 18515630 NameFound Deshayes NameFound Lagoa NameConfirmed Lagoa EOLID 2684658 NameBankID 595164 NameFound Natica praelonga NameFound Ostraea colubrina NameFound Pecten NameConfirmed Pecten EOLID 10719936 NameBankID 2692292 NameFound Pholadomya NameConfirmed Pholadomya EOLID 4744545 NameBankID 4294325 NameFound Pyramidella sagittata NameFound T scabra NameFound Tagus scabra NameFound Trigonia caudata NameConfirmed Trigonia caudata Agassiz Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36933977 dc identifier http //biodiversitylibrary org/page/36933977 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 N02/13365193983 2015-08-26 11 56 53 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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