Descriptive Note on the Sydney Coal Field, Cape Breton, Nova Scotia: To Accompany a Rev. Ed. of the Geological Map of the Coal Field, Being Sheets 133, 134, 135 N.S.

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S.E. Dawson, 1900 - Coal - 16 pages
 

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Page 9 - The aggregate thickness of coal in workable seams outcropping on th« shore, and for the most part exposed in the bays and cliffs, is from forty to fifty feet ; the seams vary from three to nine feet in thickness ; they generally dip at a very low angle, and appear to be very little affected by faults or disturbances. As the strata all dip seaward, much of the coal will be available in the sub-marine as well as in the land areas. From experience at...
Page 9 - The aggregate thickness of coal in workable seams, outcropping on the shore, and for the most part exposed in the bays and cliffs, is from forty to fifty feet ; the seams vary from three to nine feet in thickness. They generally dip at a very low angle, and appear to be very little affected by faults or disturbances. As the strata all dip seaward, much of the coal will be available in the submarine as well as in the land areas. From experience at the Sydney mines it has been fully established that,...
Page 10 - ... matter. Some of the beds are very copiously charged with a small bivalve shell of the genus Naiadites associated with plant remains. The argillaceous shales are not always persistent, but often become arenaceous and sometimes pass into sandstone. Occasionally the change is so sudden as to give...
Page 9 - Such natural advantages, combined with its highly favourable geographical position, point to this district as probably the most important in the Dominion for the supply of fuel to steamships navigating the Atlantic. During the few months of winter, when the more northerly harbours are closed or obstructed by ice, an outlet is afforded by the railway connecting many of the collieries with Louisburg, a tine harbour, open and safe for shipping at almost any season.
Page 9 - TJnder-clay ; (6.) Limestone; (7.) Black shale ; (8.) Coal. Detailed sections of the alternations of these beds in the various basins are given in the Report for 1874-75.
Page 12 - Taking the average of all the sections measured, the total number of seams in the productive measures is twenty-four, of which six are three feet or upwards in thickness, and the total average thickness of coal may be stated at forty-six feet.
Page 12 - ... productive measures developed in other parts of the field) is exposed within a distance of three miles and a half measured along the north side of the bay. The average breadth of the basin at the shore, between the outcrops of the lowest seam, does not exceed two miles and one-third, and it terminates at a point less than nine miles from the shore.
Page 9 - ... of the total thickness of the measures. They no doubt originally consisted of fine mud, with more or less sand intermixed, and are of a gray or bluish-gray...
Page 11 - In taking a general view of the mode of occurrence of the coal-seams in this field, it appears that, although local variations are neither few nor small, their similarity of conditions and persistency over great areas is very remarkable. The disturbances which the strata have undergone are not of such a nature or amount as to occasion any great uncertainty...

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