THE PICTOU COAL FIELD — POOLE. 313 



^n these areas there have been no later developments, only better 

 knowledge of the ground adjoining to the south suggests other 

 suppositions. It is surmised that either the faults which cut 

 the Foord pit east levels also cross Chapel knoll or that other 

 faults starting from the knoll, as faults in the basin to the 

 westward are known to do. and running a continuation of the 

 same course strike the North fault west of where the New Glas- 

 gow conglomerate is lost against the eastern end of the hill that 

 the Sui-ve}^ map shews as Devonian. These faults are further 

 assumed to account for the pi'esence of the strata found along 

 the banks of the East river. 



A fault of the north and south series was lately exposed on 

 the west bank of the river near Duff's burial ground with a 

 course S. 6° W., or nearly parallel with one of the faults at 

 Fraser's adit, west of New Glasgow. 



With respect to the extent of drift in the district, coal was 

 found in 1850 to have been carried northward from number 18 

 trial pit 107 feet. 



When reference was made to the chief faults of the field, but 

 little was said on page 247 of the North fault, about which it is 

 desired to add something more. The northern boundaiy of the 

 eastern and western divisions of the field as separately studied 

 by Logan and Hartley was in both cases spoken of as the North 

 fault, but a general acquaintance with the whole field has led to 

 a supposition that the North fault of Logan may extend north- 

 ward of the metamorphic rocks of Waters' hill leaving the North 

 fault of Hartley as a contemporaneous branch on the south side 

 of the range of old rocks with spurs passing off into the coal 

 measures. It is of interest to consider in connection with the 

 general structure of the district the wide extent northward to 

 Plainfield c^' the conglomerate with a pre-coal measures base and 

 the radiation from Pi*ctou harbour of a series of heavy faults re- 

 peating the outcrops of the conglomerate in that locality. On the 

 other hand eastward of Logan's North fault the conglomerate lies 

 unbroken on a post-Lower Carboniferous base, and the fault ap- 

 pears to define the rim of the mesozoic settlement of the newer 

 from the pala30zoic strata. The importance of this fault and its 



