l6o NOTES ON THE GLACIAL BEDS NEAR WYNYARD. 



These three divisions represent the primary natural' 

 subdivision of the series exposed at Freestone Bkifif 

 (Sandy Cove), and I think that there cannot be the 

 sHg-htest doubt about this. Difference of opinion enters 

 only when we discuss the age and the relations of these 

 three divisions, but before touching" this intricate point 

 it will be well to describe shortly their main features : — 



(a) Clay with scratched boulders. (Glacial drift or 

 Wynyard formation.) 



The glacial drift is well exposed along the outlet of 

 the Inglis, and thence it can be followed in western 

 direction past Freestone Bluff along the shore almost 

 as far as Table Cape, where it disappears underneath 

 the overlying sandstone. In eastern direction it can be 

 followed close up"'to Woody Hill Point; the total length 

 of exposure along the coast being about six miles (i). 

 From Freestone Bluff towards Table Cape there is a de- 

 cided dip towardJ^'^vest, but this dip does apparently not 

 continue across the Inglis river, because if it did the 

 glacial drift ought to be at a much higher level near 

 Woody Hill Point than it is. Here it appears at sea 

 level exactl}^ as at Freestone Bluff, and we must there- 

 fore assume that the eastern portion from Woody Hill 

 to Freestone Bluff is fairly level, and that the dip com- 

 mences only west of the last-named point. It is prtety 

 certain that it extends for a considerable distance in 

 northern direction, because at low tide the boulders can 

 be traced far to the north. 



How far towards north the moraine extends is diffi- 

 cult to say, but I feel inclined to think that it extends 

 at least as far as the 20-fathom line, about 10 miles from 

 the shore. 



At Freestone Bluff at least 20 to 25 feet of thick- 

 ness are exposed, but for the present it is impossible to 

 state the entire thickness, which must be considerably 

 more. 



We do not know the strata on which the moraine 

 rests, but there is every reason to assume that it rests 

 on schists of pre-cambrian age, which form the larger ■ 

 portion of the North-West Coast. 



(i) See also Stephens' Notes on the Geology of the North- 

 West Coast, etc. Lin. Soc.. New South Wales, 1908, Vol.. 

 XXXIIL, pag. 75-'. 



