BINNIE: MESOZOIC rocks of TPIE north-east coast of IRELAND. o.> 
In the section above indicated we find the following rocks 
exposed from above, downwards : — 
(f) Tertiary Basalt. 
(e) Chalk. 
(d) Upper Green sand, 
(r) RhtTtic and Lias. 
(h), Trias. 
(a) Palaeozoic Rocks. 
We see from this table that between the Lias and Upper Green- 
sand there is a great break. No trace of the Oolitic Rocks, Lower 
Greensand, or Ganlt is found. 
The Palieozoic Rocks consist of metamorphosed Silurian or Cam- 
brian, Old Red Sandstone and Carboniferous Sandstone, with Coal- 
measures at Ballycastle. The metamorphosed rocks mostly consist 
of hard, red, green, grey and blue slates and gTits, with bands of 
primary limestone ; no fossil remains have yet been found. The 
Old Red Sandstone, as seen near Cushendal, very much resembles 
tlie English type of that colour. 
The Carboniferous Sandstone is a very white rough fi'eestone, 
and is used for building purposes. It contains carboniferous fossils. 
The coal-workings under Fair Head are of gTeat antiquity, but the 
coal is of little value. There is an interesting account of their first 
discovery in the Belfast Field Club Guide Book. The section at 
Fair Head is divided into three series, similar to those occurring in 
Ayrshire : — 
1. Edge Coal Series, consisting of red and gTey Sandstones, with 
seams of coal and ironstone. 
2 . Limestone Series, consisting of Calcareous Shale. 
3. Cement Stone Group, consisting of red and yellow Sandstones, 
with shale and quartzose conglomerate at the base. 
Here, as before referred to, the principal feature is the insignifi- 
cance of the development of the limestone, which is elsewhere so well 
represented in Ireland. The coal-field runs from Fair Head to 
Ballycastle, a distance of some six miles, and the section is well 
exposed in the cliffs. 
The Trias consists of red and green marls, unctions to the 
