336 THE PICTOU COAL FIELD — POOLE. 



Mr. Graham Fraser and his associates, who put down the bore- 

 holes elsewhere referred to without attaining their object. 



The vertical measures resting on the Lower Carboniferous are 

 w^ell exposed on a branch of McLean's brook on both sides of the 

 Sherbrooke road near the south-east corner stone of the Vale 

 area ; below the road they hold five bands of the grey conglomer- 

 ate dipping N. 42 to 55 W. 70° to 80°. Followed west these 

 measures flatten to 35' before being lost on the strip of gypsi- 

 ferous carboniferous limestone that flanks the mountain west- 

 ward to the main branch of the brook 



The Mountain Section. — This section follows west of the Vale 

 from which it is probably separated by an east and west fault, 

 coursing from the south corner of the Vale area to the centre of 

 the syncline near the house of A. McLean, Jr., where a coal seam 

 appears to dip in opposite directions in two contiguous ravines, 

 and referred to by Logan on pages 15 and 16. The assumed 

 structure is shewn on the map. The lesser inclination near this 

 assumed fault is succeeded to the westward by higher dips as the 

 strata are crowded against the old rocks and their lower members 

 cut off. Sir William, on pages 34 to 36, gives reasons for be- 

 lieving this district parallels the strata lying between the six and 

 eight feet seams of the Vale. Later explorations on the small 

 brook where the coal wash he refers to modifies his number 8 

 section, and makes it read as follows : — 



Arenaceous shales : Ft. In. 

 Greenish grey conglomerate Avith semi-angular pebbles 



of white quartz with sandstone bands 7 



Arenaceous shales, soft fireclay bands, with carbona- 

 ceous partings 16 



Black shales resting on ripple-marked sandstones, (6 in.) 5 



Cono-lomerates similar to the bed overlying 12 



Measures concealed, including grey shales 22 



Coal, coarse, Gaptain seam I Coal x{)a8h of section 8 . . 4 

 Measures, in part flaky, greenish and bluish gre}^ 



arenaceous shales and sandstones 70 



Coal 1 ^ 



