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Further Notes on the Geology of 

 Kangaroo Island, 



By Walter Howchin, F.G.S. 



[Read April 7, 1903.] 



A second visit to Kangaroo Island enables me to offer some 

 remarks on the Geology of the Island supplementary to those 

 read before the Society in July, 1899. The observations now 

 submitted chiefly concern — 



(a) Further evidences of Pre-Tertiary glacial remains. 



(b) Brief reference to the older rocks, including the granite 



of Cape Willoughby and two igneous intrusions. 



(c) The occurrence of fragments of asphaltum and fossil 



resin on the south coast. 

 {d) Evidences of occupation of the Island by an aboriginal 

 population. 



Pre-Tertiary Glacial Remains. 



In my former paper (Trans, and Proc. Roy. Soc, S.A., vol. 

 XXIII., p, 198) the glacial till and associated erratics were 

 described as covering a great part of the north eastern peninsula 

 of the Island. These remains were traced around Point Marsden 

 and westward to Smith Bay; and inland, skirting both the north 

 and south sides of the Gap Hills, with extension southwards. 

 Further evidences of this extinct ice field have now been observed 

 near Queenscliffe, Point Morrison, Hog Bay, and Antechamber 

 Bay, along the eastern coast line of the Island. 



Queenscliffe. — In revisiting this locality I have been able ta 

 confirm my first impressions by securing indisputable proofs of 

 the occurrence of the "till" in the neighbourhood, and also of 

 the inferior position which the glacial beds occupy with regard 

 to the Eocene limestone which forms the sea cliffs. 



The Eocene beds lie in eroded hollows of the glacial clay. 

 This can be well seen at Beares Point, a little north of the jetty, 

 where the Eocene limestone ends almost abruptly, abutting: 

 against the glacial clay which rises from beneath. Following the 

 coast on the north side of the jetty the glacial beds exhibit a 

 very uneven line of junction with the overlying beds, sometimes 

 outcropping about sea level, and at others rising many feet above 

 their level in the cliffs. In one of these swellings of the clay I 

 obtained a very strongly glaciated erratic, a foot in length, which 



