254 THE FICTOU COAL FIELD — POOLE. 



possible tliat a (lislocation of the great magnitude assigned to 

 the South fault can pass at this point. The contact seems 

 rather one of unconfoi'uiity with slight local faulting. 



Passing" now to the northwest corner of the coal field and east- 

 ward from the boss of these rocks that occur on the Middle river, 

 at the mouth of Brown's brook, and which is evidently brought 

 up by an east and west fault that gave the conglomerate at Alma 

 its steep inclination to the south, the next exposure is on the 

 crest of the hill range wdiere the Pictou Town Branch of the 

 Intercolonial Railway has a cutting. The same patch is exposed 

 on both sides of McCuUoch's brook under Horn's liridge, as the 

 iron railway 1 iridic is called, and is surrounded bv red cono-lom- 

 erate dipping southward towards the North fault. 



Higher up the brook the Devonian rocks again come in and 

 extend to the base of Waters' hill where Lower . Carboniferous 

 are for a short distance found, the Devonian then reappears 

 in the bed of the brook wdiich has cut its channel through these 

 old rocks on crossing the North fault and leaving the Carboni- 

 ferous over which it flows from its source until it reaches at 

 the base of Waters' hill this point where it is sharply deflected to 

 the west. 



To what extent the range is composed of the several forma- 

 tions mentioned between Alma and where the Drummond rail- 

 way skirts Waters' hill, has not been made out further than by 

 the exposures along the brook : and the limitations shown on the 

 map between the North fault and the southern slope of the 

 range are very largely conjectural, though surface indications 

 have to some extent been utilized. 



Mr. Hartley implies* that the red beds with conglomerates 

 found on the southern slope of this range are of the same forma- 

 tion as the greenish brecciated felsites and altered beds classed 

 as Devonian, but the later Survey ;|: does not hesitate to call them 

 Permian or at least of the same age as the New Glasgow con- 

 .glomerate. 



Comparison was drawn by Sir W. Logan between rocks of this 



* Geol. Survey 1S69, p. p. 57, 5S. J Fletcher, 94 P., 1S86. 



