LOWER CHALK—OXFORD AND BUCKS, 
1 ^7 * 
10 
«( 
rP 
bJ3 
P 
o 
J—I 
o 
rQ 
co 
• r-H 
PH 
P 
<D 
<D> 
S 
r-*i 
Pm 
GO 
Q? 
/“H 
c3 
o 
<D 
+3 
bD 
P 
O 
U 
rP 
+3 
P 
o 
• r—I 
+3 
o 
<D 
m 
6 
i—i 
P*h 
o 
£ 
S3 
c$ 
q 5 
p 
O 
o 
43 
0) 
+3 
<D> 
r~~*i 
«+H 
r* 
o 
00 
00 
'xi 
x 
P 
43 
c3 
c5 
0) 
,_ d 
j-< 
bJO 
s3 
o3 
m 
CO 
c§ 
P 
CD 
CD 
CD 
o 
. ,_ 
f-l 
5 o 
43 
CO 
r — * H 
c3 
o 
fH 
a? 
{> 
U pper Chalk, with Chalk Rock (g) at its base. a. Gault clay. 
Middle Chalk, with Melbourn Rock (e) at its base. o. o. Ordnance datum. 
Zone of Ilolaster subglobosus ) Lower 
Zone of Ammonites varians f Chalk. 
