MAKE A MEME
View Large Image
| View Original: | The_Quarterly_journal_of_the_Geological_Society_of_London_(13889185587).jpg (1204x2076) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: The Quarterly journal of the Geological Society of London (13889185587).jpg 268 <br> T if EEADE ON RTPPLE-MAEKS IN DPvIFT <br> Fig 2 Ripple-marJcs at <br> In July 1883 I had the further pleasure of seeing in a cutting in <br> Low-level Eoulder-clay and Sands at Tranmere Cheshire in one of <br> the approaches to the Mersey Tunnel ripple-marks in hard fine <br> loamy brown sand forming the flank of what must have been a <br> submarine bank and covered with a compact mass of Boulder-clay <br> many feet thick These also were displayed in section in a <br> perfectly distinct and unmistakable manner though through being <br> formed on a sloping bank they did not possess the perfect regularity <br> and symmetry of form of those previously described f <br> The following fig 3 is a sketch-section <br> Tig 3 Ripple-marhs at Tranmere Cheshire <br> A Eipple-marks in bro vn loamy sand <br> 0 Yellow sand containing shell iragmeuts <br> B Boulder-clay <br> The sand was faulted as shown with throws of from 2 to 4 <br> inches I found sheU fragments in the bed of sand among which <br> I could distinguish Turritella terehra Cardium edule Telli7ia <br> halthica and a Pholas <br> TThe position of this section being in an embayment between <br> higher lands must have been favourable for the preservation of such <br> markings The clay was remarkably free from stones and no <br> doubt this arose from the same cause viz the protecting embayment <br> The beds are undoubtedly of the same series as those to which I have <br> given the name of the Low -level Boulder-clays and Sands <br> These ripple-markings would not be seen except when developed <br> by weathering From the nature of the material they could not <br> be displayed except in section <br> Discussion <br> Mr Clement Eeld said that he believed similar phenomena had <br> been often observed before and he did not exactly see the bearing <br> See ' Drift Beds of the N W of England ' part ii <br> t Note Alarch 1881 I have not the least doubt that these are genuine <br> ripple-marks and that the faulting of the sand has no connexion with them <br> They are distinct phenomena and not due to any common cause They were <br> also observed by several members of the LiTerpooI Geological Association 36941057 113697 51125 Page 268 Text 40 http //www biodiversitylibrary org/page/36941057 1884 Geological Society of London NameFound Cardium edule NameConfirmed Cardium edule EOLID 10720951 NameBankID 2798231 NameFound Pholas NameConfirmed Pholas EOLID 56949 NameBankID 2693919 NameFound Turritella NameConfirmed Turritella EOLID 52187 NameBankID 2683895 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36941057 dc identifier http //biodiversitylibrary org/page/36941057 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 N02/13889185587 2015-08-26 05 54 24 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1884 Photos uploaded from Flickr by FĂŚ using a script | ||||
.jpg){kind=link}
