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| Keywords: The Quarterly journal of the Geological Society of London (12893572175).jpg Vol 53- GLACIO-MARINE DRIFT OF THE YALE OF CLWYD <br> 345 <br> St Asaph road north-west of Parc-y-Meirch 220 feet above O D a <br> stream has cut into the drift over which it falls for a few feet as <br> a waterfall and here is disclosed a well-stratified sandy deposit <br> My observations generally go to show that the drift here described <br> represents a shore sloping up gradually from the lowland of the Vale <br> of Clwyd until it is backed up at a greater angle against the lime- <br> stone-cliffs forming the west side of the Vale <br> 2 Glacial Sands and Gravels east side of the <br> Vale of Clwyd <br> The country between Rhyddlan and Diserth is mostly covered <br> with red sand evidently derived from the Trias which is the bottom <br> rock of the Vale 1 <br> South-east of Diserth Castle near Prestatyn Branch Eailway is a <br> striking grass-covered mound of sand and gravel No 5 in the Map ' 2 <br> W <br> Esker south-east of Diserth Castle <br> A <br> I bou <br> bro <br> Large Limestone -Boulders <br> the structure of which may be investigated where it is broken into <br> by the excavations for gravel The axis of this mound has a <br> north-easterly trend and it forms a spur from the hill on which it <br> lies Orographically it resembles an Irish esker The excavation <br> shows that the bedding of the sand and gravel largely follows the <br> external form the flank where exposed being covered with a <br> layer of Boulder Clay as illustrated in the above diagram In the <br> 1 Between Abergele and Rhyddlan the Glacial beds are masked by post- <br> Glacial deposits but borings seem to show that Boulder Clay and Sands alternate <br> There are good sections of the Marine Drift on the river-bank at R-hyddlan and <br> these have been described by Prof M C K Hughes ' Geol of the Vale of Clwyd ' <br> Proc Chester Soc Nat Sci 1884 no 3 See also remarks on Drift in ' Trias of <br> the Yale of Clwyd ' Proc Liverp Geol Soc Session 1890-91 vol vi pt iii p 285 <br> 2 See ' Geology of Rhyl Abergele and Colwyn ' p 32 map by Aubrey <br> Strahan Mem Geol Surv 36029150 111130 51125 Page 345 Text 53 http //www biodiversitylibrary org/page/36029150 1897 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 53 1897 Geology Periodicals Smithsonian Libraries bhl page 36029150 dc identifier http //biodiversitylibrary org/page/36029150 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-03 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12893572175 2015-08-26 17 51 28 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1897 Photos uploaded from Flickr by Fæ using a script | ||||
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