286 THE PICTOU COAL FIELD — POOLE. 



inclination probably continues to the McCullocli brook fault, as a 

 trial pit at a distance of 4092 feet from the outcrop in a line 

 with the slope found the dip 26°. 



If this assumption be correct, it gives at the west corner of the 

 Albion area a total throw to this great fault of 2600 feet. The 

 Survey report at the top of page 77 puts it at 1600 feet. 



Overlying the Acadia seam in the Black Diamond area strong 

 sandstone beds are exposed on the Middle river, in the railway 

 cuttings, and in the sinking of the Black Diamond furnace pit, 

 while to the eastward in the pumping pit, 326 feet deep, at the 

 Drummond Mine only black and grey argillaceous shales were 

 met with, — the substitution of shales for sandstones being similar 

 to that observed in the Albion area and commented on elsewhere. 



No seams are known to overlie the Acadia though the survey 

 map dots the three and a half feet seam in that position. On 

 the assumption that the Acadia is the equivalent of the main 

 seam in the Albion section, there should also be found in the 

 Westville section the equivalents of those seams found overlying 

 the main in the Albion syncline at Tupper's. But whether 

 equivalent seams so found would have any commercial value is 

 another matter, the near approach to the older rocks makes it 

 doubtful ; at the same time some encouragement might be had 

 from the finding of numerous pebbles of good coal in the till near 

 where the Middle river road is shown to cross the Drummond 

 railway just west of the McCulloch brook fault. But as the 

 drift of the district has been from the south, and these pebbles 

 are well rounded, they may have come from the outcrop of the 

 Acadia seam a mile awa}^ 



A southerly dip is given by the survey to the coal measures 

 along the North fault to the west of McCulloch's brook. It is 

 based only on exposures in the brook, but as the brook is 

 now regarded to lie between the fault and these exposures their 

 inclination has not the weight given to it twenty years ago. 

 Since then operations in the Acadia seam for a distance of 4000 

 feet on a line nearly parallel to the North fault have disclosed 

 the Black Diamond series of faults, a series invariably with a 

 hade westward, and coursing parallel to one another. So far as 



