LOWES CHALK—SOUTH WILTSHIRE. 
153 
Soft grey chalk - 
about 
ft. 
2 
£ 
Firm greyish blocky chalk with siliceous 
* <s> 
S- 
nodules, in beds divided by soft grey chalk - 
9 9 
20 
e 
£ 
Hard grey chalk ------ 
5 ) 
1 
^ . 
Firm greyish chalk in blue-hearted blocky 
4-3 
courses, with marly layers between - 
99 
30 
O 4+_ 
Hard grey chalk - - - 
9 9 
1 
£ J> 
CO 
Firm blocky grey chalk, like that above - 
99 
10 
Hard grey chalk ------ 
99 
1 
<H—< 
0 
Firm blocky grey chalk, as before - 
99 
40 
0) 
Soft marly chalk - 
9 9 
20 
a 
o 
Bedded chalk marl (seen in quarry) - 
99 
10 
N 
Chloritic marl (see p. 151.) 
99 
2 
239 
Mr. Andrews obtained a good specimen of Inoceramus cunei- 
formis from one of the harder beds in the zone of Am. varians. 
Zone of Holaster subglobosus. 
The higher part of the Lower Chalk is exposed in several quarries 
and road cuttings in the southern part of the district. The principal 
of these are the following : — 
The quarry at Cann, south-east of Shaftesbury, has already been 
mentioned. 
A large quarry on the western slope of White Sheet Hill, about 
four miles north-west of Shaftesbury, shows 70 or 80 feet of 
greyish-white blocky chalk, from which Mr. Ehodes obtained 
Am. [Haploceras] Austeni, Am. [A canth.\ rotomagensis, Nautilus 
deslongchampsianus, and a few other fossils. 
By the road leading up to Buxbury Hill there are two excava¬ 
tions in the higher part of the Lower Chalk. The first of these is 
in the quarry above the exposure by the limekiln previously men¬ 
tioned. This shows about 25 feet of firm blocky greyish-white 
chalk, breaking as usual along more or less curved surfaces, so that 
the real planes of bedding are obscured. The following fossils 
occurred: Am. [Acanthi] rotomagensis, Inoceramus sp., Ostrea 
lateralis, Pecten Beaveri, Terebratula semiglobosa , and Mr. Bliodes 
subsequently found Am. [Acanthi] Mantelli, Am. [Hapli] Austeni 
(a fragment), Ostrea vesicularis, and Pecten orbicularis. These 
species and the absence of Am. [Schloenbi] varians incline me to 
place these beds in the higher zone. If this is correct the floor of 
the quarry nearly coincides with the transition from one zone to 
the other. 
On the other side of the road, and at a little higher level, thei*e is 
a second quarry, showing the following beds : — 
ft. 
Compact white chalk, weathering into courses with looser 
chalk between them.5 
Bather rough £rrevish-white chalk - - - - r 6 
Marly parting. 
