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| Keywords: The Quarterly journal of the Geological Society of London (12961254665).jpg 1869 NICHOLSON IGNEOUS EOCKS OF THE LAKE-DISTRICT <br> 435 <br> 9 Notes on certain of the Intrusive Igneous Rocks of the Lake- <br> district By Henry Alletne Nicholson M D I So M A <br> F G S <br> The rocks which I purpose noticing in the following communication <br> are certain igneous rocks of an intrusive character and holding an <br> almost identical position in the stratified series of the Lake-district <br> of Cumberland and Westmoreland The rocks in question are the <br> syenite of the Yale of St John the syenitic porphyry of Ennerdale <br> and Buttermere and the felstone porphyry of Carrock Eell aU of <br> which come into contact on the one hand with the Skiddaw Slates <br> and on the other with the series of the green slates and porphyries <br> Fig 1 ” Sketch Map of the North-western portion of the <br> Lake District <br> Cb Skiddaw Slates <br> 3 Metamorphosed <br> o \ Skiddaw Slates <br> Intrusive ig- <br> 1 neous Rocks <br> S Green Slates and <br> \ Porphyries <br> jOld Red <br> 1 Sandstone 1 <br> / ˘ j SearLime- <br> – 1 stone <br> I The Syenite of the Vale of St John <br> The area occupied by the main exposure of this rock is situated <br> on both sides of the mouth of the Yale of St John distant about <br> three miles to the east of Keswick and occupying a space of nearly <br> two miles from east to west by nearly a mile from north to south <br> On the east side of the valley it forms a cluster of minor elevations <br> of which the highest is known as Knotts On this side of the valley 36103310 111288 51125 Page 435 Text v 25 http //www biodiversitylibrary org/page/36103310 1869 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 25 1869 Geology Periodicals Smithsonian Libraries bhl page 36103310 dc identifier http //biodiversitylibrary org/page/36103310 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-06 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12961254665 2015-08-26 14 52 23 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1869 Photos uploaded from Flickr by Fæ using a script | ||||
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