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| Keywords: The Quarterly journal of the Geological Society of London (12961108815).jpg 1868 <br> KINGSMILL GEOLOGY OF CHINJl <br> 125 <br> but in general throughout the east and north-east of Kwangtung <br> and the greater portion of Puhkien igneous and metamorphic rocks <br> form the most conspicuous geological feature of the country The <br> Pig 4 � Part Section of Si Tungting-shan <br> Scale 4 miles to 1 inch <br> W S W E N E <br> Band with Limestone Taihu <br> vegetable fossils Villages Villages Quarries Lake <br> 1 2 3 4 3 5 <br> 1 Grits and Shales No 3 4 Quartzose Shales probably No 5 <br> 2 Limestone with Chert-nodules No 4 5 Limestone No 6 <br> 3 Alluvial deposits <br> granites of the coast-chain and of some inland districts of Kwangtung <br> and Kiangsi especially give a forbidding aspect to the scenery where <br> they occur From the large amount of mica they contain as well <br> as from the excess of alkaline materials of the felspar they are <br> readily decomposed and have yielded to the disintegrating action of <br> the atmosphere in these regions saturated with water for a large <br> portion of the year to an enormous extent leaving behind a mass of <br> soft unctuous clay surrounding the grains of unaltered quartz The <br> granite however is very concretionary in its structure and irregular <br> in character ; and here and there are to be seen large masses of solid <br> stone which have resisted decomposition and lie like enormous <br> boulders imbedded in the surrounding matrix In places exposed <br> to the wear and tear of the tropical rains this matrix has been <br> washed away ; and the undecomposed masses left far and wide over <br> the surfaces of the hills have more than once been referred to as the <br> results of glacial action corresponding with the boulder drift of more <br> northern latitudes In many localities this decomposed rock annu- <br> ally washed by the rains assumes a most barren aspect giving a <br> blank and desolate appearance to the coast of the southern provinces <br> as seen from the sea deep channels worn by the mountain-torrents <br> and detached masses of every form scattered about giving the whole <br> an air of utter confusion At Amoy especially may this be noticed <br> where the whole coast seaward presents a mass of white sandy hills <br> glariug in a subtropical sun and only relieved by the black of the <br> detached boulders which he around <br> Granite however is not the only plutonic rock to be met with <br> In Kwangtung and Fuhkien large masses of porphyry of many vari- <br> eties are found ; trachytes containing a large portion of free silica are <br> likewise abundant as also large masses of greenstone In Fuhkien <br> large quantities of rock apparently felspar are found of a fine grain <br> and greenish colour which form admirable building-stones In <br> Kiangsu and the Yangtse provinces granites and trachytes seem to <br> form the characteristic igneous rocks <br> See Ansted's ' Elementary Course of Greology ' 2nd Edit p 42 36102970 111288 51125 Page 125 Text v 25 http //www biodiversitylibrary org/page/36102970 1869 Geological Society of London NameFound Shales Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 25 1869 Geology Periodicals Smithsonian Libraries bhl page 36102970 dc identifier http //biodiversitylibrary org/page/36102970 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 N02/12961108815 2015-08-26 15 54 45 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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