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| Keywords: The Quarterly journal of the Geological Society of London (14076839874).jpg 76 PEOF A H GEEElJf Olf A SECTIOJT iST AE LLAJ fBEElS <br> north-west and the conglomerate creeps over the flaky rocks <br> with a rapidly increasing thickness till it conies down to the level of <br> the railway This conglomerate has the same character as that seen <br> on the other side of the flaky rocks ; it contains a few fine slaty <br> bands which give the dip and show that the beds are rnnning down <br> at moderate angles to the north-west I could not see the actual <br> junction of the flaky rocks with the grits to the south-east of them <br> but I traced the two to within a few feet of one another and it <br> seemed likely that they were separated by a fault <br> Eig 2 ” Enlarged Section hetiueen the j oi7its P and Q in fig 1 <br> N W S E <br> Conglomerate Grit <br> Dyke <br> c <br> A Fissile flaky rock B Greenish-grey fragmental rock <br> C Grey breccia <br> There seems to me no room for doubt that in this section we see <br> the top of a projecting boss of a group of rocks underlying the <br> Harlech and Llanberis beds and that the conglomerate rests on these <br> rocks with the strongest possible unconformity <br> Further proof of the unconformity is found when we examine the <br> hill side on the north-east of the railway Por some way up fig 3 <br> Pig 3 ” Section at right angles to the Railivay hetiueen the points <br> P and Q <br> S W IST E <br> Eailwav <br> we find the fissile rocks peeping out every here and there in gullies <br> and other depressions with the conglomerate lying upon their edges <br> I am afraid it may be thought that I have been unnecessarily <br> prolix in my account of this small section and I certainly should <br> not have thought that there was any need to give at such length the <br> evidence for what seems to myself a very simple matter if it had <br> not been for the following circumstance I believe that the section <br> just described is the one figured by Sir A Eamsay in the Survey <br> Memoir on Xorth Wales pp 178 179 figs Q2 and 63 and he <br> there gives a reading of it very different from my own He calls 37046914 114009 51125 Page 76 Text 41 http //www biodiversitylibrary org/page/37046914 1885 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 41 1885 Geology Periodicals Smithsonian Libraries bhl page 37046914 dc identifier http //biodiversitylibrary org/page/37046914 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 N02/14076839874 2015-08-26 04 58 54 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1885 Photos uploaded from Flickr by Fæ using a script | ||||
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