BEACH AND BOULDERS NEAR BRAUNTON AND CROTDE. 



661 



ness of this deposit is very great. Conspicuous white bands are 

 sometimes seen along the face of the section, but this is only a 

 superficial efflorescence of salt due to the evaporated spray from the 

 sea. 



Below this talus there is a deposit of sand of very variable thick- 

 ness, often having at various horizons in the upper part bands of 

 angular talus like that above. 



The bedding is very clear in the weathered cliff (see fig. 4). It 

 is often false-bedded, and in sections at right angles to the coast is 



Fig. 3. — Diagram Section across so-called Raised Beach under Saunton 

 Bourn, North end of Barnstaple Bay. (Scale 200 feet to 1 inch.) 



a. Recent sand and shingle. 



b. Talus, overlapping and dovetailing with upper part of c. 



c. Blown sand, with subaerial talus intercalated in upper part, and sea-beach 



deposits alternating with lower part. 



d. Pilton Beds. 



x. Low water. y. High water. z. Spring- tides and storms. 



Fig. 4. — Cliff of Consolidated Sand resting on Cleaved Hock 

 (Pilton Beds), Saunton Bourn, North Devon. 



sometimes seen to slope up rapidly against the hillside, as indicated 

 in the section (fig. 3). 

 -Land-shells occur here and there, singly or in bands, Helix yir- 



