230 



MR. E. W. BINNEY ON THE 



section on the north and that of Fogbrook to the south, 

 from the information that the shaft and bore give us it is 

 only fair to suppose that the PoUitt^s-Farm section, mid- 

 way between the two, is but a repetition of them. The 

 rivers Tame and Goyt have swept the drift away at Beat- 

 Bank Bridge and Fogbrook, and exposed to view the Coal- 

 measures and overlying red sandstones, whilst at Pollitt^s 

 Farm those strata are covered up by the original deposit 

 of drift. All these three sections are on the line of the 

 so-called " Red-rock fault.^^ 



On the Fogbrook and Stockport Red Sandstone. 



Mr. Hull, in showing the thickness of the Triassic strata 

 in the county of Chester, gives the following Table "^ : — 



Formation. 



Subformation. 



Thickness. 



Keuper < 



BUNTER < 



Eed Marl 



feet. 



3000 

 450 

 700 

 800 

 800 



Lower Keuper Sandstone 



Upper Mottled Sandstone 



Pebble-beds 



Lower Motted Sandstone 





5750 



In the east of Cheshire and Lancashire this author con- 

 siders that he has found no evidence of his third and 

 lowest division of the Bunter, namely the Lower Mottled 

 Sandstone. Now, as a general rule, where he found his 

 Lower Mottled Sandstone he has seen no Permian rock like 

 the CoUyhurst Sandstone or its overlying marls with mag- 

 nesian-limestone fossils. It was once suggested to him 

 by me that these marls and limestones might in some 

 parts of the west of Cheshire and Lancashire have thinned 

 out and thus allowed the two soft red sandstones to unite 

 and form one bed. This, however, Mr. Hull would not 



* Transactions of the Geological Society of Manchester, vol. ii. p. 31. 



