LOWER GREENSAND. 59 



At Winstone, a fine example of a mud-slide is crossed by the 

 railway cutting, now grassed over. Another a little to the east 

 has travelled clown a hollow in the Inll-side, and is now being dug 

 for bricks. On the hill-side above the brick-pit a small opening 

 has been made in the Carstone. 



From here to Shanklin occasional small sections serve to fix 

 the position of the Carstone, but call for no particular notice. In 

 the great cliff-section, however, which extends from Knock Cliff 

 to near Bonchurch, this subdivision is finely shown. It strikes 

 the coast half a mile north of Luccomb Chine, and forms thence 

 the brow of the cliff to Monk's Bay, where it comes nearly to the 

 beach. West of this, through everywhere hidden by landslips, 

 it probably descends to the level of the beach, as is believed to be 

 the case near Niton. Everywhere it passes up into the Gault, and 

 rests with a sharply-marked base on the brightly coloured sands 

 of the Sand-rock Series. The following section was noted in 

 Monk's Bay : — 



Ft. In. 

 Gault. Blue micaceous clay passing down. 



f Blue micaceous clay with lines of grit - 3 



I Brown ferruginous rock with derived phos- 

 j phatic concretions containing oolitic grains 

 I of iron oxide . . . - 



Par t J Sandy and gritty blue clay, passing down - 

 "^ Clayey brown grit with nodules as above 

 Brown grit ----- 

 Brown grit with many small pebbles 

 Pebbly band, with quartzites up to half-an- 

 L inch in length - - - .0 3-6 



Sand-rock Series. Bright-yellow and white sand. 



34 6 



A well-rolled specimen of Enallaster {Hemipneiistes) Fittoniy 

 Forbes, was found as a phosphatic nodule in the clayey brown grit, 

 3 feet thick. This fossil is recorded as occurring at Horseledge 

 (p. 261), and more abundantly in the same beds at Atherfield, 

 and in the Hythe Beds at Hythe. Its occurrence therefore as a 

 derived specimen in the Carstone is significant. 



