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| Keywords: The Quarterly journal of the Geological Society of London (13365143413).jpg 126 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY NoV 7 <br> The carbonaceous shales composed of argillaceous mud charged <br> with decaying vegetable matter occur interstratified with thin layers <br> of coal <br> The beds of hmestone are rare and with the exception of the two- <br> inch layer No 92 very coarse and impure being charged with car- <br> bon bitumen or siHceous matter The persistence and uniform <br> thickness of all the limestone beds except those numbered 152 and <br> 154 are very remarkable The two last are separated at low-water <br> mark by a three-inch layer of shale ; at high-water mark they merge <br> into one bed and at eight feet higher up thin out as represented in <br> the annexed cut <br> Fig 4 <br> 151 152 153 154 <br> 151 153 155 Shale a a High water <br> 152 154 156 Limestone b b Low water <br> Only one bed of conglomerate No 143 occurs in this section ; it <br> is composed of small quartz and granite pebbles united in a base of <br> brown ferruginous clay <br> The sandstones shales and limestones are traversed by two sets of <br> joints at right angles to the plane of stratification the course of one <br> set being S 80° E and the other S 5° W which consequently di- <br> vide the beds vertically into blocks of a rectangular form as nearly <br> as may be These joints are of great service in quarrying the sand- <br> stone beds for building purposes <br> There are thirty-one seams of coal in this section whose aggregate <br> thickness is 37 feet ; four only are of sufficient thickness to be worked <br> profitably viz � <br> Nos ft in <br> 78 Indian Cove Seam 4 8 <br> 188 Main Coal 6 <br> 295 Lloyd's Cove Seam 5 <br> 360 Cranberry Head Top Seam 3 8 <br> The relative positions of the several seams may be best understood <br> by referring to the section The coal is in every instance bituminous ; <br> the quality of that obtained from the four seams above-named is un- <br> exceptionable <br> All the coal-seams save one No 27 which will shortly be noticed <br> and indeed almost every layer of carbonaceous shale lie upon under- <br> About 80 000 tons of coal are raised annually from the Main Seam of which <br> 30 000 tons are consumed in Nova Scotia the remainder being chiefly shipped to <br> Newfoundland and the United States 36933951 113689 51125 Page 126 Text v 6 http //www biodiversitylibrary org/page/36933951 1850 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36933951 dc identifier http //biodiversitylibrary org/page/36933951 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 N02/13365143413 2015-08-26 11 58 13 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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