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| Keywords: The Quarterly journal of the Geological Society of London (14075871555).jpg 572 <br> C CALLA- AY OX THE AECH AX AND <br> evidently continuous Tvith the well-known black shales north-west <br> of Llanerchymedd These shales may be traced for over four miles <br> to the south-south-west disappearing a little north of Llyn TreflPwU <br> They fringe the Archaean for the whole distance usually dipping <br> away frora the older rocks At their base south of Bodnolwyn-hir <br> are some thin bands of grit <br> Llanfiliangel Conf/lomerate ” Xorth-east of Llanfihangel the <br> Cwaen shales pass down through some seams of grit into a con- <br> glomerate similar to the rock at Clymwr This conglomerate <br> remains in contact with the Archsan for about a mile disappearing <br> near a cottage called '-'Harlech under the sandy tract which <br> margins Cymmeran Bay The rock is Avell exposed in the craggy <br> ridge east of the farm of Tywyn where in one place it is seen to <br> dip to the east <br> The Clymwr and Llanfihangel conglomerates with the intervening <br> Cwaen shales are thus seen to fringe the western Archaean area for <br> Fig 3 ” Sl'efcJi-2Iap of the TreiorwertJi Si/ncUne <br> Shale <br> Gri Conglomerate 36941405 113697 51125 Page 572 Text 40 http //www biodiversitylibrary org/page/36941405 1884 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36941405 dc identifier http //biodiversitylibrary org/page/36941405 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 N02/14075871555 2015-08-26 05 52 43 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1884 Photos uploaded from Flickr by Fæ using a script | ||||
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