644 



PROFESSOR A. C. SEWARD ON 



which overlie and almost entirely conceal a platform of Upper Jurassic rocks. This 

 platform is faulted inland against the granite of the Ord of Caithness and Helmsdale, 



r^ 



Map I. — Outline map of the north of Scotland, showing the position of the Jurassic rocks (black patches) 

 on the coast of Sutherland and Ross and Cromarty. 



while from Gartymore to Lothbeg there is an intervening faulted strip of Old Red 

 Sandstone between the granite of Culgower Hill and the Jurassic rocks." 



„ ++ v» F 



^^ 



A/ a vi a a le 

 * v Helmsdale 



frarlymoi-e, t + + * 



LotKTl 



+ V.43 





Scale , I Cm = I m 



tie I 



_ot Kteq 



*++ Grant be 



T : - . ; Old. T^e^ Sandstone 



■■ UbberOoUle 

 «?o CoTaiLi-aTL 

 F. F Faults. 

 Ma? II.— Geological sketch-map of part of the coast of Sutherland, showing the relation of the Jurassic to the older rocks. 



[The photograph p. 645, taken from the beach near Culgower, shows part of the 

 platform of low ground stretching out to sea, with the granite hills shading off towards 

 Brora. The rock in the foreground is a portion of one of the Jurassic reefs which are 

 uncovered at low tide.] 



