CARBONIFEROUS DISTRICT OF PICTOU. 319 



Ft. in. 



Brought forward, 435 



Main Coal seam (greatest thickness) . . . .3911 



Sandstone, shale, and ironstone .... 157 7 



Deep Coal seam ....... 24 9 



Shales, sandstone, and ironstone, with several thin coals, 

 viz. the Third seam, " Purves scam, and Fleming 



seam," in all about twelve feet thick . . 280 



M'( Iri gor Coal seam . . . . . 11 



Shale, with many beds of sandstone and layers of iron- 

 stone and underclays ...... 240 



Coal and earthy bitumen, " Frazer coal and Stellar 



coal" ......... 4 



1192 3 



The above is to be regarded as a mere approximation, and the 

 measurements are taken in a line perpendicular to the surface, the 

 beds being inclined at an angle of about 20°. In this section it will 

 be observed that the total thickness of beds is less than in the Middle 

 Coal measures of the Joggins section, but that the quantity of coal is 

 vastly greater. In other words, the deposit of vegetable matter has 

 been greater and more continuous, and that of earthy matter less. 



When the first edition of this work was published, the extension of 

 the Pictou Coal seams was known only in the Albion mining area near 

 the Fast River, where the dip is to the north-east and the strike 

 north-west. Subsequent explorations by Mr Poole, recorded in a 

 paper published in the "Canadian Naturalist," showed that about a mile 

 and a half westward of the river the beds are bent and faulted, and 

 turn suddenly to the southward. It was afterwards ascertained by Mr 

 J. Campbell, and by the agents of the "Acadia" and "Nova Scotia" 

 Companies, that the line of outcrop takes an extensive curve of more 

 than a mile to the southward, forming the area of the " Intercolonial" 

 Company, and then, sweeping again to the northward, resumes a north- 

 westerly course, passing toward the Middle River. Here it would 



m to turn round the end of a .synclinal, or to be cut off by a fault 

 in its extension with northerly dip, and it is next seen to return on a 

 curved line, skirting a ridge of older rock, probably of Devonian age, 

 and a conglomerate connected with this, toward New Glasgow ; near 

 which, on the Ilaliburton or "Montreal and Pictou" area, the beds 

 appear witli high dips to the southward. The East River Coal area 

 between that river and the Middle River would thus appear to con- 

 stitute an irregular trough with a deep bay to the southward, and 



V3 



<J 



