120 
E,ED AND NORWICH CRAGS. 
At Anninghall the Tese joins the Yare, and instead of im¬ 
mediately continuing the description of the beds around Norwich, 
we will first take the upper part of the Valley of the Yare. 
The sections above Eaton and Cringleford show pebbly gravels 
in which no fossils appear to have been found, but both ferruginous 
casts and shells with the calcareous matter preserved occur at 
Eaton* At Hartford Bridge clay occurs in considerable thickness, 
and Mr. H. B. Woodward sketched the following section (Fig. 26), 
remarking that the mode of occurrence of the clay and sand 
proves the intimate connection of the deposits, for not only does 
the clay contain lenticular patches of pebbly sand, but itself forms 
a great mass, false-bedded with the overlying sand and gravels. 
No such a mass of clay is seen in the adjoining pit at Eaton where 
Crag shells have been found. This wedge-shaped mass is about 
20 feet in length.”t Fragments of mammalian bone have been 
found in the sand and shingle (bed 1) beneath the laminated clay. 
Fig. 26. 
Section at Hartford Bridge. 
(H. B. Woodward.) 
Upper Crag 
A. Chalk. 
f4. Pebbly gravel .... 
1 3. Wedge of pebbly gravel (three feet) 
j 2. Laminated clay, with nests and veins of 
'1 sand and fine gravel dovetailing into the 
j pebbly gravel 
Li. Sand and shingle 
Feet. 
10 
6 
4 to 6 
The Pliocene strata outcropping in the Valley of the Wensum 
west of Norwich consist mainly of pebbl}^ sands, with traces of lami¬ 
nated clay, but nearly always without fossils. Around Norwich 
itself sections are so numerous that we can here only allude to a 
few of the more interesting ones, all of which lie in the Valley 
of the Yare between the city and Surlingham. The other sections 
are described in Mr. Woodward’s Memoir {op. cit) 
* Lyell, Phil. Mag., 1839, p. 260. 
t Geology of the Country around Norwich {Me7noirs of the Geological Survey') 
