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| Keywords: The Quarterly journal of the Geological Society of London (12513166724).jpg 82 <br> PEOCEEDINGS OF THE GEOLOGICAL SOCIETT NoV 22 <br> pebbles enclosed in a hard dark-red clayey matrix of which dis- <br> integrated the abundant and highly fertUe soil apparently consists <br> dry and fissured during the sultry season but soft tenacious and <br> muddy during the heavy rains of the wet season <br> Beneath this and forming the most marked and apparently <br> the most abundant rock of the island is a hard tough compact <br> dark dull-coloured fine-grained basalt which at some places as at <br> Les Jumeaux is distinctly columnar Of this rock the most pro- <br> minent bluff's cliffs and off-lying rocks appear to consist see map <br> and outHne figs 1 and 2 <br> Fig 1 � SJcetch Map of the Geology of Fernando Noronlia <br> ;;£5;;;S <br> PgMtStMiQliacl <br> xooiby T <br> l jmj <br> -/i 1 X <br> ' ' ' �� ��-- <br> Scale <br> Ym Basalt <br> G-ranite <br> Tlie rest Conglomerate <br> The highest peaks of the group evidently consist of a fine-grained <br> light-grey granite and notably Mount St Michael a huge abrupt <br> rounded almost woodless islet which is altogether granitic � and also <br> Fernando Noronha peak situated about the centre of the north side <br> of the main island near the convict village This is a remarkable <br> bold inaccessible needle-shaped prominence 1014 feet high which <br> protrudes through the conglomerate flanking its base <br> Large wave-worn masses of granite and especially basalt as well <br> as basaltic boulders from disintegrated conglomerate lie plentifully <br> scattered along the fine yellow sandy beaches especially at the chief <br> landing-place close to the Port Rock Water not over abundant <br> muddy and brackish is only found near the beach <br> It is a noteworthy fact that Fernando Noronhais 194 miles to the 34984973 108770 51125 Page 32 Text v 28 http //www biodiversitylibrary org/page/34984973 1872 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 28 1872 Geology Periodicals Smithsonian Libraries bhl page 34984973 dc identifier http //biodiversitylibrary org/page/34984973 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-14 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12513166724 2015-08-27 10 01 51 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1872 Photos uploaded from Flickr by Fæ using a script | ||||
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