1870.] 



WHITAKEK SOUTH DORSET AND DEYON CHALK. 



99 



without marked divisions ; and the Beer stone must take its place 

 therefore simply as Lower Chalk. 



To return to the cliffs. Near Branscombe there is white hard 

 Lower Chalk over the cream-coloured sandstone of the Greensand ; 

 but sometimes a flint-layer occurs little more than a foot above the 

 latter. At the highest part of the cliff the section is : — 



Irregular pipy deposit of flints. 



Chalk with flints. 



Chalk without flints, but with hard cream-coloured nodviles, 30 or 40 feet. 



Sandstone (Greensand). 



A little westward there is a layer of flints a few feet above the 

 Greensand, to which also the Challc with flints is nearer. Still further 

 westward, where the cliff again rises, a thick continuous deposit of 

 flints caps the Chalk, and there are signs of the bed with quartz- 

 grains at the bottom of the latter. Then a part of the section 

 (fig. 3) shows fliiit-layers, some of which end abruptly — and some 

 nodular layers not parallel with the former, but cutting through 

 them. 



Fig. 3. — Section of part of the top of the Cliff west of 

 Branscombe Mouth. 



1. Flint-gravel. 



2. Clialk with many layers of flint. 



3. Nodular layers. 



4. Chalk with a few layers of flint and of marl, and a layer of nodules. 



5. Talus. 



At the small outlier on the hill west of Weston Mouth, the most 

 westerly patch of chalk shown on the Geological Suiwey Map, 

 hardly any thing can be seen, from the great surface-deposit of flints ; 

 but at the next cliff beyond, just east of Salcombe . Mouth, there is 

 again a little chalk, which I believe to be the most westerly mass of 

 that rock now existing in England. 



The above notes must be taken as merely a record of a fcAv facts 



TT 9 



