PROCEEDINGS COTTESWOLD CLUB 
13a 
1916 
{b) THE WENLOCK LIMESTONE 
As has been mentioned above, the separate stretches of 
Wenlock Limestone seen in the Coed-y-paen Anticline, which 
are eleven in number, are to be considered as originally having 
been one connected band of rock. Earth movements have 
broken the limestone-band, and the fractured portions have 
been pushed in and on to the soft underlying shales which form 
the visible core of the Anticline. 
In describing the exposures, it will be best to pass from 
West to East. 
(1) Close to the Usk railway. East of Little Mill, there are 
some old workings, and here, at (68) h about 30 feet of bedded 
limestone is seen, bent sharply up against the Old Red Sand- 
stone to the West of it. 
(2) To the South of these exposures are some quarries (91), 
near the farm of Tynewydd. Here bedded limestone is seen 
to be overlaid by thin limestone-bands, with sandy shale 
partings, and these by sandy shales with calcareous nodules. 
(3) Passing the Church, to the South-East one gets to 
quarries close to the road, which comes up from the railway, 
and also to (22), where sandy shales are seen covering 8 feet 
of sandy shales with calcareous nodules, and under these 
30 feet of grey Limestone in layers about 4 inches in thickness. 
There are sometimes thin shale partings between the lime- 
stone-layers. 
This stretch of Limestone extends for over a mile to the 
South-South-East of Glascoed, when it ends against a fault- 
line. 
(4) A short stretch of Limestone is next found to the 
South-West above Greenpool Farm. It is quarried at (35), but 
the exposure is a poor one. Grey limestone in irregular thin 
layers is seen, and is full of trilobites in the stream bed. 
(5) For half-a-mile to the South no Limestone is seen, but 
near Common Coed-y-paen exposures are common. At (51) 
below II feet of line-grained Limestone, arranged in irregular 
thin layers with thin partings of sandy shale, 8 feet of a hard 
1 Numbers in brackets refer to spots similarly numbered on tlic map. 
