LOWEi; GKEENSAND. 43 



Strike nearly east from Little Whitcombe to the north .side of 

 Marvel Farm, and thence towards Horringford, where Airther 

 evidence of its position may be seen. 



A large sand-pit at Standen provides the following section of 

 the Sand-rock Series : — 



Standen Sand-pit. 



Green and grey sand, current-bedded 



Yellow sand-rock 



Ironstone with a few small pebbles - 



Yellow and grey loamy sand and clay 



Dark-blue clay - - - 



Ironstone, about ... 



Grey pebbly sand, passing down 



Loose yellow and white grit 



Fine sand .... 



Clay-bed - - 



Fine white sand-rock 



The bottom of the pit is probably about 15 or 20 feet above the 

 base of the Sand-rock Series, but a considerable thickness of beds, 

 consisting in part of fine-grained buff and brov^n sand, occurs 

 in the hill-side above, before w^e reach the base of the Carstone. 

 The dark-blue clay may be the upper of the two clays seen near 

 Shanklin, but correlation in so variable a series is mere o-uess- 

 work. 



Almost the only section of the Ferruginous Sands in the Black- 

 water valley occurs in the road-side near Stone, where green and 

 ferruginous sand and deep-brown sand with many <»-rains of iron 

 oxide, are exposed. Similar sands extend along the southern 

 slopes of St. George's Down. On the north side of the Down, 

 300 yards south o£ Garrett's, a sand-pit has been opened near the 

 top of the Ferruginous Sands; the beds exposed are dull-o-reen 

 sands with lines of soft concretions, and are traversed by several 

 small faults, which run nearly east and west, and throw the beds 

 down a foot or two to the south. The dip is northwards at 23°. 



The next sections occur near Arreton and Merston. A road- 

 cutting south-west of the former place exposes red sand containing 

 many grains of iron oxide, the dip being north-east at 13°, while 

 300 yards north of Meiston Cross pale sand is seen, dippino- 

 south-south-west at 7°. Here then we have the continuation of 

 the anticlinal axis, which we noticed at Marvel. Obscure casts of 

 fossils occur in a band of ironstone on the road to Merston, 

 600 yards south-west of Arreton Church. 



At Eedway and near Horringford Station red and brown irony 

 sand may be seen, the latter locality yielding specimens of Venus 

 and other fossils according to Mr. Norman.* Apparently the 

 same beds are exposed in the road in Newchurch. Here and 



* A Popular Guide to the Geology of the Isle of Wight, p. 56. (1887.) 



