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| Keywords: The Quarterly journal of the Geological Society of London (13365754894).jpg 350 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY Maicll 13 <br> ˘ <br> OQ <br> <br> eS C-J <br> ˘9 ni3is <br> – aima- S <br> S <br> 60 <br> is <br> Gulf of St Lawrence <br> quartzite prevail Westward of the main <br> stream of the St Mary's River clay slate and <br> quartzite with masses of granite are the pre- <br> vailing rocks <br> The surface of this metamorphic belt is <br> rugged and uneven but not very elevated <br> The inland side is however somewhat higher <br> than the parts nearer the coast attaining in <br> some places an elevation of about 600 feet ; <br> it abounds in small lakes and streams and its <br> coast line is much indented <br> From the upper part of the west branch of <br> the St Mary's River to the head of Cheda- <br> bucto Bay the granitic group is bounded on <br> the north by a valley occupied by sandstones <br> conglomerate and shale composed of the de- <br> bris of the hypogene and metamorphic rocks ; <br> and containing a few Calamites and other <br> fossil plants of the carboniferous system This <br> belt of carboniferous strata which I explored <br> and marked on the map of the province for <br> the first time in 1845 separates in its whole <br> length the granitic group from that next to <br> be described See Section fig 2 <br> II In the second as in the first metamor- <br> phic group the prevailing rocks are slate and <br> quartzite ; these are however of much more <br> varied characters The former varies from <br> grey wacke to imperfect micaceous and talcose <br> schists through many intermediate varieties <br> of clay slate and presents grey olive black <br> and reddish colours The latter is of every <br> variety of texture and ranges in colour from <br> white to dark grey These rocks are also <br> more thinly bedded and present more fre- <br> quent alternations than those of the granitic <br> group ; at some points they are observed to <br> pass into less altered rocks contauiing organic <br> remains ; and in several locahties they are <br> traversed by metalhferous veins The igneous <br> rocks which have penetrated the strata of this <br> group are very abundant and exceedingly <br> varied in their composition and characters <br> Their prevailing composition is felspatho- <br> homblendic a character by which they are in <br> general markedly distmguished from those of <br> the granitic group Syenite greenstone of <br> many varieties compact felspar claystone <br> and porphyries with bases of the two latter <br> substances are the most common of these 36934215 113689 51125 Page 350 Text v 6 http //www biodiversitylibrary org/page/36934215 1850 Geological Society of London NameFound Calamites NameConfirmed Calamites EOLID 13132177 NameBankID 4098476 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36934215 dc identifier http //biodiversitylibrary org/page/36934215 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-23 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13365754894 2015-08-26 10 58 14 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1850 Photos uploaded from Flickr by Fæ using a script | ||||
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