264 
LIAS OF ENGLAND AND WALES: 
Gloucestershire. 
In the Cotteswold District the Upper Lias is not often 
exhibited,* nor has it been mapped in the escarpment south of 
Wotton-under-Edge, although probably present in an attenuated 
form. It is, however, mapped in the Oolitic escarpment stretch- 
ing north from Wotton. by Dursley and Uley. (See Fig. 67, 
p. 214.) 
The general characters of the lower beds of Upper Lias and 
the Marlstone are shown in the accompanying section at Wotton- 
under-Edge. (Fig. 86.) 
FIG. 86. Section at Wotton-under-Edge. (H. W. Bristow.) 
^^^^^r;^^^^ 
' '- .".": > :'.".-". ':. '-.-'' vr^. :/: X-:-\> " '-'*'; '. .'"'" '- :'''. : .';; 
a. Marlstone. 
b. Upper Lias. 
c. Surface soil. 
At a quarry to the south of Stancombe, and about 1 mile west 
of Dursley, Bristow noted the following section in 1843 : t 
Midford Sand - Sand, about 3 feet. 
Upper Lias - Clay, with bands of nodular blue claystone, 8 or 9 feet. 
Middle Lias - Marlstone Rock, in thick beds, irregular. 
At Newnharn (Newent) quarry, north of Stinchcombe Hill, the 
Upper Lias basement - beds have likewise been exposed ; but 
sections of the higher beds, belonging to the zone of A. comnnaifs 
are rarely to be seen. 
* See Brodie and Bucknian, Quart. Journ. Geol. Soc., vol. i. p. 221. 
f See also Wright, Quart. Journ. Geol. Soc., vol. xii. p. 307. 
