OF THE NORTH-WEST OP ENGLAND. 2 I 7 



distance of 1 00 yards under the lower new red sandstone with- 

 out finding the slightest disarrangement of the coal-measures ; 

 thus clearly proving that the latter there run quite regular un- 

 derneath the permian beds, and are not cut off by them as the 

 coal-miners have often supposed. 



Heaton Mersey Section. 



At a place lying about four miles to the west of the two last 

 named sections, are the bleach works of Mr. Tait* This is on 

 the dip of the upper new red sandstone, of Stockport, which 

 is about 300 yards in thickness under the town; and some years 

 since, in boring for water there, where that rock was expected 

 to be of very great thickness, it only proved to be 45 feet, and 

 the permian beds, which at Norbury, were of an insignificant 

 thickness, and at Fog Brook, had not been seen at all, were 

 proved to be 640 feet thick. The following is a section of 

 the bore : — 



Soil and gravel (a few feet). "Feet. 



Upper new red sandstone 45 



Red marls containing beds of hard stone 129 



Lower new red sandstone, proved 402 



676 



The last-named deposit, which I examined on the spot as 

 it came up from the bore, consisted of a coarse grained sand of 

 deep red colour, similar to that at Collyhurst. How much 

 thicker this deposit might be it is impossible to say, but it 

 is quite evident that the permian beds extend under the trias 

 of Cheshire, and are of much greater importance there than 

 when seen on their out-crops. Their occurrence at this place, 

 in theif present position, is no doubt owing to a great fault, 

 which has thrown them up together with the trias. By carry- 

 2 E 



