TTLOK QTJATEENARY GRATELS. 



'9 



part it is 60°, S., curving gradually towards high-water mark. At b 

 the raised beach of flint- shingle, with masses of slightly rolled chalk, 

 is seen reposing on it, dipping to the sea at about 6°, and above 8 or 

 10 ft. above the present high-water mark. 



There are alternations of beds of very large flints beach-rolled, 

 and layers of chalk debris, many pieces with the corners slightly 

 rounded, varying from 6 in. to 2 feet in length. The fall of chS at 

 the spot represented in fig. 10 enables the geologist to measure the 



Fig. 10. — Section about half a mile East of Sussex Square, Brighton. 



]sr. s. 



6S 



Covering bed. 



Combe rock. 



^^^SE^g^^^^^^^g 



Raised beach. 



T^^ Modern beach. 



Upper Chalk-with-flints. 



angle of deposition of the gravel and Combe rock north and south, 

 and also to observe the face east and west. The dips at several points 

 have been marked in the sketch. The raised beach dips south at from 



Fig. 11. — Section at Brighton. 



N". S. 



CoTering bed. 



Modem beach. 



6° to 8°, and the covering bed also south at 2°. "We thus meet near 

 the sea with the condition of the basement bed of gravel (b, fig. 10) and 

 of the covering bed of gravel being deposited nearly horizontally, while 



