92 GILPIN PICTOU COAL FIELD. 



an upthrow to the south, the continuation of the line of crop beyond 

 the fault must be searched for to the eastward at a distance deter- 

 mined by the amount of dislocation, and the angle of dip of the 

 strata. 



We have now briefly sketched the line of this important seam 

 from Westville to the McCullock fault, and thence to the McLeod 

 fault on the east side of the East River. Explorations to settle its 

 position have not yet been pushed beyond this point, but enough 

 has been done to afford a reasonable basis for calculations as to its 

 continuation beneath what are known as the Upper seams, viz : 

 the McBean and Marsh groups as shown in my paper on the Pictou 

 Coal Field. 



Underlying the Main seam on Coal Brook are 1286 feet of 

 sandstones and shales, containing no less than 12 seams of coal, 

 varying in thickness from two to twenty feet. The effect of the 

 McLeod fault would naturally be to thrust some of these coals 

 nearly on the line of the Main seam ; and we find this to be the 

 case. A short distance to the east of the point where the outcrop 

 of the Main seam is intercepted by the McLeod fault, the crop of 

 an 8 foot seam, known as the McLeod, has been opened and traced, 

 its strike being found to be S. 15° E., at an angle of 15°. Under- 

 lying this at a short distance, is reported the crop of a second seam. 

 The strike of the coal and associated strata gradually turns to the 

 south-west, and then bending to the east of south, is abruptly cut 

 off by the great South fault. 



The limited explorations that have been made in the vicinity of the 

 McLeod mult are not decisive enough to show which of the Albion 

 group it is identical with, there having been no attempt made to 

 ascertain its relation to over or underlying seams. The crop of a 

 coal seam is known on the bank of a small brook near the house of 

 "W. Miller, about one-half mile to the south of the crop of the main 

 seam. It is on the south side of the McLeod fault, and where 

 exposed dips to the east at a moderate angle. The interval be- 

 tween this bed and the McLeod seam shows a considerable extent 

 of ground underlaid by coal. 



Between the latter seam and the Culton adit on McCullock's 



