331 
These beds appear to indicate the setting in of a change 
from the deep sea and clear water formation of the Limestone, 
to the shallower and turbid water deposits, culminating in the 
formation of the Millstone Grit, and may be considered as the 
boundary beds below the Upper and Middle Limestones. 
After leaving Mr Hardwicke’s quarry and following the 
line of Railway, the beds dipping at about the same angle, 
a “reversed” fault comes in about 345 feet from S.E. end of 
the quarry, bringing the fine grained beds of the Dolomitic 
Conglomerate, looking uncommonly like Yellow Magnesian 
Limestone, wedged in beneath the Carboniferous Limestone, 
and slightly turned up at the edges and crumpled up somewhat 
by the over thrust of the former. This shearing must have 
taken place after the deposition of the yellow beds in late or 
post Triassic times. The lowest bed (No. 37,) brown in colour 
containing Producti, rests upon a wedge of fine grained yellow 
Dolomitic Limestone, somewhat brecciated, which requires close 
inspection to distinguish it from the Paleozoic beds above. 
These yellow Triassic beds continue for a distance of about 
525 ft., when the Carboniferous Limestone is seen rolling up at 
their base, continuing in a series of rolls with the general dip 
in the same direction for a space of some 790 feet as far as the 
first tunnel. The fine grained Dolomitic Conglomerate resting 
unconformably on the top. A lenticular mass of greenish 
Keuper marl and sand, marked ‘‘ Sands” in Section at C, is seen 
on the left hand troughed in between the top beds of Dolomitic 
Conglomerate above, and the Paleozoic beds below, filling up a 
fissure in the bottom beds, and containing a block of Conglomer- 
ate faulted in with it. As the overlying beds have no visible 
continuing fissure, it is difficult to see how this Triassic deposit 
could have found its way down. By supposing however, that a 
fissure once existed above in the beds that have since been 
displaced in making the line, we can see a possible explanation 
how this deposit came into its present position. Immediately 
over the tunnel (No. 15,) a series of light coloured mottled 
green and pink thin bedded Limestones come in. At the 
opposite end of the tunnel the solid Middle Limestone series 
