Wright and Muff — Pre-glacial Raised Beach. 289 



From the place where the road from Inch reaches the shore, as 

 far as Bally croneen Coastguard Station, the cliffs are composed of 

 drift, forming a nearly level terrace, from 60 to 200 yards broad, 

 from the inner side of which the pre-glacial rock-cliff slopes steeply 

 upwards to nearly 200 feet above O.D. line. 



About 75 yards east of the foot of the road mentioned above, 

 the following section was measured : — 



Feet. 

 Stony loam and soil, . . . . 2 



Bed boulder-clay, with 1 ft. -bed of gravel,. . 12 

 Grey, marly boulder-clay . . 3 



Lower head, . . . . . . 3i + 



The lower head consists of angular pieces of red slate and sand- 

 stone, lying flat, and having a red or yellowish loam filling up the 

 interstices between the fragments. Its base is hidden by the 

 gravel of the beach ; but the lower part of the shore is formed of 

 slates and sandstones, which have been planed down to level scaurs. 

 This shore-platform is the seaward portion of the pre-glacial plat- 

 form, and extends inwards beneath the terrace of drifts to the foot 

 of the pre-glacial cliff. 



The clay lying on the head is a bluish or greenish-grey marl, 

 containing shell-fragments, foraminifera, and boulders of local 

 and extraneous rocks. The rocks of distant origin include flint, 

 Carboniferous Limestone (generally striated), and a variety of 

 igneous rocks, some of which are identical with those occurring in 

 Counties Waterford and Wexford (see list, p. 267). 



The junction line of the marl with the lower head is an 

 undulating one. The base of the marl is very compact, and 

 almost free from stones, which are scattered through the rest of 

 the deposit, and are locally abundant near the top. Above the 

 marl, but not sharply marked off from it, is a reddish boulder-clay 

 containing abundant boulders of local rock and a very few of flint 

 and igneous rock. 



The stony loam is probably weathered boulder-clay. It is 

 sometimes mixed with angular fragments of the local rocks, when 

 it may represent the upper head of the other sections. 



Sections similar to the above are exposed in the cliffs to the 

 east. The head beneath the marl is sometimes disturbed and the 



