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| Keywords: The Quarterly journal of the Geological Society of London (13204863944).jpg NORTH-WEST OF ENGLAND AND NORTH AVALES 101 <br> the Dee and Alyiij is a very high bank of shingle None of the <br> stones were scratched They consist of Silurian grits Mountain <br> Limestone felspathic and trappean rocks greenstone small pebbles <br> of granite cherty limestone syenite and Millstone Grit On the <br> opposite bank and higher up the river a landslip August 1873 <br> displayed stratified sand with thin bands of gravel and in some <br> places fragments of coal At one point there appeared to be seams <br> of peat ; but an examination showed they were composed of rounded <br> pieces of coal-shale closely packed together I picked up fragments <br> of Cardium and Tellina ; but they were not plentiful On the east <br> side of the railway between Wrexham and Gresford is a ballast-pit <br> fig 20 showing gravel shingle and boulders c lying upon strati- <br> fied sand d <br> Fig 20 � Section in Ballast-pit on the east side of the Valley <br> between Gresford and Wrexham <br> r <br> i <br> c Gravel and shingle mixed with sand <br> d Stratified sand <br> The bed of shingle and gravel was mixed with sand and was about <br> 25 feet high There were some large granite boulders among it <br> mixed with stones common to the Lancashire drift and with local <br> stones and coal-shales <br> The local stones greatly preponderated <br> At Chirk we come upon the Dee again and from the railway <br> viaduct can be seen a very great depth of half-rounded shingle which <br> has been cut into by the river on its right bank <br> Higher up the river than Llangollen and about Cor wen are great <br> hills of gravel and sand drift showing curved bedding ; these beds <br> are cut into cliffs on either side of the valley Near Carrog station <br> the drift is very full of boulders At Cynwyd station there is a deep <br> cutting in a buff-coloured clayey drift containing boulders Near <br> Llandillo there is a good section of bedded sand and gravel <br> At Bala station there is a drift of angular subangular and slaty <br> shingle Between Bala and Dolgelly massive rounded boulders are <br> seen resting upon the rock Here are also gravel mounds There <br> are immense boulders in the gravel The shores of Bala Lake by the <br> railway show gravel shingle and large boulders in the shallows of <br> the lake <br> General Observations on the Drifts of the Dee Basin <br> The Boulder-clay of the estuary of the Dee is generally similar to <br> that of the Mersey <br> i2 36928682 113681 51125 Page 101 Text 39 http //www biodiversitylibrary org/page/36928682 1883 Geological Society of London NameFound Avales NameFound Cardium NameConfirmed Cardium EOLID 50301 NameBankID 2693257 NameFound None NameConfirmed None EOLID 2913255 NameFound Tellina NameConfirmed Tellina EOLID 50297 NameBankID 2693370 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 39 1883 Geology Periodicals Smithsonian Libraries bhl page 36928682 dc identifier http //biodiversitylibrary org/page/36928682 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-16 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13204863944 2015-08-26 13 51 47 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1883 Photos uploaded from Flickr by Fæ using a script | ||||
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