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| Keywords: The Quarterly journal of the Geological Society of London (14072723631).jpg 860 <br> H H GODWIN-AUSTEX ON TERTIARY FORirATlO S <br> These boulders although retaining their form and colour are so <br> completely disintegrated and softened that they can be sliced off in <br> mass easily with the edge of the hammer <br> Higher up the winding ravine the dip changes to soutb at a <br> lower angle and the beds rest against the porphyry the lowest beds <br> being gritty with quartz pebbles and red ochraceous beds above <br> The Tertiary beds can be traced here and there below the bridge <br> but are there of a grey marly character and only showing in the low <br> banks as far as the high road from Boca towards the plains beyond <br> The village stands on the same formation which here rises to about <br> 250 feet west of the stream I could find no fossils <br> Section at IIaggiora <br> The next section of the Tertiary beds occurs at Maggiora about <br> a mile to the east on the road to Borgomanero ; and owing to the <br> formation of a new road descending towards the Sizzone river good <br> fresh sections were exposed in the Pliocene <br> Section under Maggiora <br> r S Cr <br> 1 Tertiary <br> ; r Shell bed <br> c Glacial deisosit <br> d Porphyry <br> Just after leaving the village the descent commences and at <br> 1188 feet by aneroid the beds are seen resting on the original <br> sloping surface of the porphyry fig 4 at what must have been <br> at one period of their deposition the sea-margin ; for a bed 3 feet <br> thick of a rusty-coloured muddy sand 6' rests on broken angular <br> debris of the adjacent porphyry buried in a similar sand a with <br> no admixture of other rocks <br> The base of this bed b' for a few inches is crowded with marine <br> shells a small Pecten being common ; but they are not in a suffi- <br> ciently good state of preservation to carry away or to collect hur- <br> riedly and I had no time to do so in a methodical manner These <br> deposits are horizontal and extend to the level of the river below <br> 1089 feet above sea-level so that about 100 feet or more of these <br> beds are here exposed blue-grej' beds among them and 1 noticed <br> them low down in the next ravine to the east the Yallanzana <br> They have all the appearance of having been deposited in a sinking <br> area against a steep and originally rocky coast-line This is an 36941737 113697 51125 Page 860 Text 40 http //www biodiversitylibrary org/page/36941737 1884 Geological Society of London NameFound Pecten NameConfirmed Pecten EOLID 10719936 NameBankID 2692292 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 40 1884 Geology Periodicals Smithsonian Libraries bhl page 36941737 dc identifier http //biodiversitylibrary org/page/36941737 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 N02/14072723631 2015-08-26 04 54 21 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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