298 > REY, J..F. BLAKE ON THE 
yards distant. Here the junction looks like a faulted one, and the 
nearest beds to the conglomerate are not the silvery schists. These, 
indeed, come on further south in an unconnected manner, and 
Fig. 3.—Plan of Ogof Golchfa. 
Fault. 
Rey} 1. Diabase. 
WS 
Yi Yj, 2. Schistose ashes. 
occupy much of the coast till we come to the important section of 
Carn-ar-wig, where is a landing-place and crane. Here the following 
view is seen (fig. 4) :—On the east are vertical silvery schists with a 
north and south strike ; they form the boundary of a little accessible 
bay, which apparently contains a fault; associated with which there 
is probably a mass of an amygdaloidal rock, of which numerous 
fragments lie about; on the other or west side of the bay are great 
masses of felsite at the base, covered with evenly bedded ashes 
dipping N.N.E. at about 20°, and forming part of a mass which 
is almost agglomeratic in parts. This is followed to the west by 
smooth green hummocky ashes ; and the last two rocks are overlain 
quite unconformably by typical conglomerate dipping N. W. at 
about 45°, with large pebbles of quartzite at the base. Though 
there is no fault here, all the rocks being laid quite bare, no better 
proof could be desired, derived from one spot, of the perfect indepen- 
dence of the conglomerate and the volcanic series and in particular 
the silvery schists. This is the end of the circumference, until we 
reach the eastern side again, and come to those interesting spots in 
which the granite plays an important part. 
