HuTTON. — Geology of North-eastern Otago. 423 



to S.W. at the point of junction, and then getting horizontal as 

 it passes south along Allday Bay. In this clay I obtained 

 Deutalimii inantclU, Ostrea edulis, Waldlieimia patagonica, and 

 Cellepora numvmlaria ; but many more species could be obtained 

 with plenty of time. I beUeve this clay to be the equivalent of 

 the Hutchinson's Quarry beds, but more palfeontological evidence 

 is required. The unconformity between it and the underlying 

 Hmestone is plainly to be seen in the coast section, not only in 

 the difference of dip, but also in the denuded surface of the 

 limestone (Section IV.). 



The Hon. W. Mantell makes the following remarks on this 

 locahty : " A mile south of Kakanui, strata of tertiary blue clays 

 first appear ; they contain numerous shells of species that in- 

 habit the neighbouring sea, corals, a few traces of fishes, and 

 small portions of wood. In some loeaUties the clay is capped 

 by a thin layer of sandstone."* If the Hutchinson's Quarry 

 beds are the same as this clay, then they must no doubt be 

 placed, for reasons that will presently be given, in the Pareora 

 System with the Awamoa series. I have already mentioned 

 that Mr. McKay formerly held the opinion that the fossils were 

 the same in both, although the Geological Survey has never 

 grouped them together. 



Pareora System. — I have already mentioned the Awamoa 

 beds on the south side of Oamaru Peninsula, so well known from 

 the collections made by Mr. C. Traill in 1868. The same beds 

 occur on the eastern side of the hills north of Oamaru, as far 

 as the Waitaki Valley. The only other place in the district 

 where I saw rocks which I should refer to the Pareora System 

 was in the Waireka Valley. Here, in going fi-om Elderslie to 

 "Windsor, we see blue clay, which, further north, passes upwards 

 into white quartz sands and gravels, covered from Corriedale to 

 Ngapara by a hard conglomerate, formed by well-rounded white 

 quartz pebbles in a ferrugmous cement (Section III.). These 

 form conspicuous cliffs, which cap the hills on both sides of the 

 railway. I did not find any fossils in these beds, and cannot, 

 therefore, pronounce positively as to their age, but it was from 

 somewhere in this neighbourhood that Mr. C. Traill made a 

 collection of Pareora fossils some years ago. I cannot, indeed, 

 conceive these beds to be older than the Ototara hmestone, as 

 supposed by Mr. McKay ; and in November, 1873, I found the 

 quartz pebble beds resting on the limestone near Mr. K. Gilhes' 

 farm, in the Awamoko District. The lignite, which lies also 

 above the limestone, is here generally covered by the ferruginous 

 conglomerate. These beds appear to me to be like the 

 Pareora gravels and conglomerates of Waihao and other places, 

 and to occupy a valley of erosion in the Oamaru System. 



* " Quar, Jour. Geol. Soc. of London," vol. vi., p. 324. 



