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| Keywords: The Quarterly journal of the Geological Society of London (13205082254).jpg 370 <br> C CA LLAWAY ON THE NEWEE GNEISSIC <br> Fig 3 Section on Poulan-drein Scale 3 inches to 1 mile <br> w <br> e c 4 V <br> the right bank the uncertainty is removed The Brown Flags in <br> curved overthrown beds are succeeded after an interval of a few <br> yards occupied by drift and fragments by the quartzite which we <br> traced along the scarp dipping to the S E at 5° This quartzite is <br> full of the worm-holes ; and similar rock can be traced up Poulan- <br> drein for over a mile and over the south-eastern slopes of Cnoc-an- <br> drein to the very summit over 1500 feet <br> Prof MiaH F G S Mr Tiddeman F G S and Mr Eccles F G S <br> visited this section under my guidance ; and they all agreed that <br> there was an overthrown syncline with a fault beyond ; but they <br> were not sufficiently familiar with the district to express an <br> opinion on the age of the quartzite east of the fault <br> In this section we see that the Assynt group forms a synclinal <br> fold thrown back upon itself ; while quartzite perfectly resembling <br> the Annelidian Quartzite on the west side of the syncline appears to <br> the east in nearly horizontal beds The natural interpretation of <br> these facts is that the underlying quartzite has been brought up <br> along a line of dislocation and crush and pushed laterally to the <br> west bending back the dolomite and flags The upthrow cannot <br> be great the place of the Annelidian Quarzite being immediately <br> under the Flags <br> Quartzite of Cnoc-an-drein I have said that the Annelidian <br> Quartzite at the Poulan-drein fault can be traced without a break to <br> the summit of this mountain Going down from the summit over <br> the north-western scarps towards Calda Burn we pass over a de- <br> scending series till at the burn we reach the quartzite with red <br> felspar bits But this quartzite may be traced down the burn till <br> it seems to overlie the Dolomite as in the section described In <br> other words on Calda Burn the Dolomite is conformably succeeded <br> by beds which are from 100 to 200 feet lower in the quartzite series <br> than the strata which conformably overlie the Dolomite in Pou- <br> lan-drein 36928977 113681 51125 Page 370 Text 39 http //www biodiversitylibrary org/page/36928977 1883 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 39 1883 Geology Periodicals Smithsonian Libraries bhl page 36928977 dc identifier http //biodiversitylibrary org/page/36928977 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 N02/13205082254 2015-08-26 12 51 15 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1883 Photos uploaded from Flickr by FÌ using a script | ||||
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