242 THE PICTOU COAL FIELD — POOLE. 



the mouth of Marsh brook a uionoclinic fold sharply uplifting 

 the beds, it is followed a little hio-hor up stream by two quick 

 lateral deflections which must effect this purpose. Where ex- 

 posed no break can be seen, l)ut it may i-eadily V)e conjectured 

 that in their southerly extension towards the older rocks of 

 McLellan's mountain a break in the continuit}^ of the beds does 

 occur ; the more so as the section of strata pierced by No. 2 

 borehole of the Acadia Coal Co. in 1878 seems to require the 

 passage of a fault to make the records and exposures coincide. 



No mention is made in the Report of these rolls, but 

 they evidently do give relief to the beds turning from 

 a general south-east to a south-west course. The exposure 

 on the west bank of the brook some 250 yards above 

 the mouth of Marsh brook is very prominent, the dip 

 is 80° with a quick bend at the bottom of the bank to an inclin- 

 ation of only 10°. Tracing the strike up stream, the dip flattens 

 to 4° and then the beds sharply turn to the westward, but with- 

 out breaking, and dip at 28*^' to the southward. From the drift 

 on the west bank at this point containing fragments of coal it is 

 probable that the widow Chisholm seam, one foot in thickness, 

 is close by. The sandstone beds at this first flexure are succeeded 

 by black shales, probably the same beds that are seen along the 

 east bank of the brook just below the mouth of Marsh brook, and 

 with them is a well-marked compact black bituminous bed, dip- 

 ping on the east bank to the south-west and on the west bank to 

 the south-east, marking the second flexure that brings the strike 

 back into the original line without disclosing any actual fault. 

 At one time the brook followed the curve of the strata liut now 

 its course is straight across the dips, and perhaps the exposures 

 are much clearer now than they were twentj^ j'ears ago. 



Should these rolls be proved to develop southward into a fault 

 the course indicated would take it to a break in the hill range, 

 parallel to the course of the fault shewn at Patrick's oil coal pits, 

 and across the western end of the southern synclinal of Logan 

 where some heavy faulting is generally believed to exist. If 

 further extended in the same course to the southward, it would, 

 cut a contact of Lower Carboniferous sandstones with a pro- 



