MAKE A MEME View Large Image The Quarterly journal of the Geological Society of London (14095890003).jpg 460 J H COLLINS ON THE SERPENTINE AND <br> Pig l ”SJcetch-Map of the Portlialla District <br> Scale 1 inch to 1 mile <br> j Conglomerale <br> ZadocJc\ <br> ...
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Keywords: The Quarterly journal of the Geological Society of London (14095890003).jpg 460 J H COLLINS ON THE SERPENTINE AND <br> Pig l ”SJcetch-Map of the Portlialla District <br> Scale 1 inch to 1 mile <br> j Conglomerale <br> ZadocJc\ <br> limestone exactly resembling those of Gernens Bay and containing <br> in places portions having an organic-like structure the nature of <br> which has not yet been determined ; like the Gernens Ba limestones <br> they also contain minute fragments of Crinoids <br> These IS'elly's Cove rocks are in my opinion certainly Lower <br> Silurian as are also the quartzites at the top of the hill at Penare <br> Farm a little to the N W which were described by me in the <br> paper already referred to as containing Lower Silurian fossils t <br> Proceeding southwards from Nelly's Cove towards Porthalla <br> we soon reach some very siliceous conglomerates containing fragments <br> of a rock which both macroscopically and microscopically resembles <br> and is in fact identical with the granulitic rock of Porthalla <br> These beds seem to dip at low angles to the S S E as shown in the <br> map They are succeeded by soft dark schists having nearly the <br> same strike and dip only a little more to the southward which <br> form low cliffs on both sides of Porthalla Cove On the east side <br> of the rivulet they extend up to the first fault gradually however <br> I believe that the specimen No 733 collected by Dr Boase from <br> Porthalla which is now in the Museum of the Royal Greologieal Society of <br> Cornwall and which contains portions of an Orthoccras and other organisms <br> came from here only half a mile from Porthalla and not actually from the <br> village or cove proper I have searched there very narrowly without being able <br> to find any limestone whatever <br> t Trans Eoy Geol Soc Cornw vol ix read Nov 1879 36941279 113697 51125 Page 460 Text 40 http //www biodiversitylibrary org/page/36941279 1884 Geological Society of London NameFound Porthalla Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36941279 dc identifier http //biodiversitylibrary org/page/36941279 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 N02/14095890003 2015-08-26 05 57 29 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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