66 



PKOP. E. HULL ON THE RED EOCKS OF SOUTH DEVON 



YI. The Keuper Series. 



The Keuper Series is laid open to view in the fine range of cliffs 

 along which the high ridge of Salcombe, capped by Cretaceous beds, 

 terminates at the coast-line. Dr. Irving has shown that the sand- 

 stones and marls at the base gradually pass upwards into the red marl 

 with gypseous bands, about the geological age and position of which 

 there can be no controversy. The basement of the series appears 



Pig. 2. — Cliff-section at Sidmouth, showing Keuper hasement-beds 

 resting on Upper Biinter sandstone. 



a. Red marls with thin sand- 



stones. 



b. More massive light-red and 



white freestone, current- 

 bedded, with bands of red 

 marl and shale. , 



c. Basement-bed of Keuper. 



Hard calcareous breccia, 

 2 ft. thick. 



d. Soft red sandstone, current- 



bedded. 



to occur in a thin bed of conglomerate in the cliff, just where the 

 wooden bridge crosses the stream, at its opening on the bay. Below 

 this pebbly bed, which seems to be consolidated by a calcareous 

 cement, the soft red sandstone of the Upper Bunter, traversed by 

 planes of oblique bedding, may be seen ; and over this several thick 

 beds of light red, grey, and yellowish sandstone, with partings of 

 marl ; the whole (with its brecciated base) bearing a very strong 

 resemblance to the representative beds in some parts of the Midland 

 counties. 



With the Keuper Series our work of identification ends, so far as 

 regards the Devonshire red rocks. Erom what has been here said, 

 it will be seen that, with one or two not very important exceptions, 

 the writer concurs in the interpretation which Dr. Irving has given 



