THE PICTOU COAL FIELD — POOLE. 



271 



was assumed, have been the obstruction against which the 

 softer and newer rocks of this series have become faulted and 

 broken. This view is not entirely abandoned, although now less 

 confidently held, the evidence of age not being convincing. 



The partial section given by Logan is put as 1000 feet. Red- 

 dish sandstones of the upper parts are exposed on the Merigomish 

 road ten chains west of Wier's mill, dipping N. SO'' E. 31°. 

 They appear to be part of the series seen at the dam. 



Feet. Feet. 



Greenish grey sandstones and band of nodular limestone 



Red sandstones and shale in brook below the mill 

 Greenish grey freestone, dipping due N. 12" 

 Red rocks 



Grey freestone at bridge over south branch 

 of the brook underlaid by bed of nodular lime 

 stone, repeated at Pine Tree Bank : — 



Nodular limestone 



Coal one inch. 



Red shale or marl and red flaggy sandstones 



Red thick bedded sandstones . . 



Massive grey freestone, dip N. 10° W. 14° 



On the main brook above the dam : — 



Freestone at a quarry 



Sandstones , 



Impure limestone 



8of c light grey calcerous sandstone 



Sandstones greenish grey with " bull's eyes". 



Strata concealed 



Impure nodular limestone 



Grey freestone 



Nodular limestone, N. 30° E. 34° 



200.0 

 30.0 



400 



20 

 12 

 15 



20.0 



80.0 



0.8 



2.0 



130.0 



90.0 



3.0 



270.0 



1.6 



600 



1000 

 This section ends at an east and west anticline or fault that 

 marks the crown of the arch ,and is succeeded by red rocks dip- 

 ping S. 25° W. 43". 



Mr. Hartley discusse.s^^) the probability of unconformity of the 

 conglomerate^-^ with its base and refers to imperfect exposures 

 north of Fraser Ogg's quarry road on the small water-run that 

 flows along the base of the conglomerate escarpment to the west 



(1) Survey Report, 1868, p. 66, also referred to by Logan, p. 13. 



(2) Supplement Acadian Geology, p. 36, line 16, doubts the e.\istence of unconformity. 



