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| Keywords: The Quarterly journal of the Geological Society of London (14052658026).jpg or MONTE SOMMA AND VESUVIUS <br> Ill <br> the valloni is the more or less deep incision or cupa a8 locally called <br> which furrows them along their spine These cnpe are often of <br> considerable depth occasionally as much as 20 metres and have <br> almost perpendicular walls Their origin in all cases seems to be <br> the result of human agency As they play an important part in <br> odi fying the superficial form of the mountain a few remarks <br> a projpos of the manner in which they are produced will be necessary <br> Fig 2 ” Section in tJie Vallone St Patrizio <br> about the bbO-metre <br> contour-line on the right side in ascenclimg <br> a Alluvial breccia sand c Phases VII and VIII <br> h Pumice of Phase VI Period 4 <br> c Yellow earthy ash with fragments of pumice PHASE VI Periods 2 a nd 3 <br> d Compact grey pumice and lapilli Phase VI Period 1 <br> ' Vegetable soil Phases V IV and III Period 4 <br> e Regularly stratij ed rounded lapilli and sand of different sizes with a <br> few fragments of black spongy pumiceous scoria Phase III Pej'iod 3 <br> f Black compact pumiceous scoria Phase III Period 2 <br> g Light and white pumice Phase III Period 1 <br> h Ancient lava Phase I <br> This section is intended to show the erosion of one bed before the deposition <br> of another <br> Above the 300- or 400-metre contour-line the two chief vegetable <br> products of Monte Somma are chestnut trees and bushes and an under- <br> growth of two or three species of broom or Genista The first of <br> these supply sapling poles brushwood and charcoal ; the second brush- <br> wood only The mountaineers occupied in the collection of these <br> products make both the ascent and descent of the mountain along <br> the ridges instead of the valley-bottoms As the latter are rough <br> and jagged from the lava-beds and intercepted from time to time by 36940872 113697 51125 Page 111 Text 40 http //www biodiversitylibrary org/page/36940872 1884 Geological Society of London NameFound Genista NameConfirmed Genista EOLID 13440 NameBankID 2650919 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36940872 dc identifier http //biodiversitylibrary org/page/36940872 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 N02/14052658026 2015-08-26 05 56 00 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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