250 MR. GARDINER AND PROF. REYNOLDS ON [May 1902, 
(e) Inland Exposures of Rhyolites and Ashes. 
With the exception of those in the neighbourhood of the Min- 
naunmore Rock, which are conveniently described when dealing with 
the rocks of Clogher Head, the most important inland exposures of 
igneous rocks are those in the neighbourhood of Carhoo village, 
which lies about two-thirds of a mile north of the village of Dunquin. 
As one proceeds up the stream which follows the old road from Mill 
Cove te Carhoo, and runs in a more or less southerly direction from 
Carhoo, a series of banded and nodular rhyolites is met with. 
They strike north 40° east, and are very similar to those forming 
the band (A4) on the coast. They contain an ash-band in their lower 
layers, and overlie a series of rhyolites and ashes which extend for 
some little distance north of the Dunquin and Clogher road. Just 
south of the latter road they dip at 50° south 60° east; while north 
of the road the direction is south 50° east. Rhyolites then again 
come on, and extend through the village of Carhoo, and for about a 
sixth of a mile along the old Ciogher road to the north of the village. 
Then ashes come on again, followed once more by purple nodular 
rhyolites. This brings us toa point about a quarter of a mile north 
of the village of Carhoo, where the stream which we have been 
following is joined by a small westward flowing tributary. From 
this point for a third of a mile to the north no exposures are seen, 
and then one reaches the rhyolites, which have been already described 
as occurring in the neighbourhocd of the Minnaunmore Rock. A 
band of ash, overlain by sandy hmestones and underlain by green grit 
dipping at 46° south 40° east, is seen in the ravine which strikes 
the coast a little north of Carrigcam, the exposure being immediately 
east of the point where the ravine is cut by the new road. 
If one follows up the little westward flowing tributary of the 
Carhoo stream above mentioned, exposures of ash and sandstone are 
met with striking east 50° north, a strike which, if prolonged, would 
bring them against the rhyolites of the neighbourhood of Carhoo. 
The presence of a fault between the two exposures is thus sug- 
gested. A smali band of pale ash occurs in the northernmost 
stream of the two which run down the hillside towards Clogher 
village, the exposure lying not far east of the old wheel-track. 
(f) Inland Exposures of Sedimentaries. 
(1) The neighbourhood of Dunquin, Coumaleague, 
and Croaghmarhin.—Kast of the villages of Dunquin and 
Carhoo, between them and the hills of Croaghmarhin and Couma- 
league, are very numerous exposures of sedimentary rocks, prin- 
cipally in the beds of the Dunquin River and its numerous tri- 
butaries. They are all of the nature of grits, flags, and sandy 
limestones and ‘slates; no igneous rocks whatever are seen associated 
with them ; and the fossils, which are often very plentiful, are in 
almost every case indicative of a Ludlow age. 
