Vol. 58.] | THE FOSSILIFEROUS SILURIAN BEDS OF KERRY. 243 
C (5). This well-marked greenstone-band is seen in the deep inlet 
at the south-western base of the promontory of Foilwee. It strikes 
across that promontory, and is seen again in the inlet of Coosaneal. 
. Here it cer- 
Fig. 13.— Weathered surface of nodular rhyolite tainly seems 
(C7); Foilwee, Clogher. See below. to beintrusive, 
and perhaps 
the band which 
strikes across 
the base of 
the promon- 
tory may be 
a sill, as sug- 
gested by the 
officers of the 
Geological 
Survey. 
Cr iss va 
well - marked 
rhyolite with 
ush - bands, 
forming the 
main part of 
the Foilwee or 
Poulnakeragh 
promontory. 
The rhyolite 
is sometimes 
compact and 
purple, some- 
times banded, 
und sometimes 
modular: in 
all these re- 
spects it re- 
sembles the 
rhyolite of Clogher Head, with which we correlate it. It includes 
the following bands; at the top :— 
Thickness in feet. 
(a) Purple ash and banded rhyolite 120 
up pel alexa] tigen irae ale antennas es 18 
‘(¢) Rhyolite, sometimes nodular... = 35 
(Gy aBialerasliaeasaesct: cc pedascetseies 00 
(Zi Bama as Siete oe oe 25 
Beyond the ash (C7 ¢) is a small gap occupied by the sea, and 
then follows a series of flags or sandy slates (C 9), forming the rock 
of Doonycoovaun. 
In the inlet of Coosaneal a fault shifts the outcrop about 100 yards 
to the south-east, bringing the rhyolite (C7c) against the greenstone 
(C5). 
Q.J.G.5. No. 230. s 
