Glacial Beds at Wynyard, Tasmania. 35 



Carboniferous age of South Africa, New South Wales, Victoria 

 and Tasmania. 



Mr. E. J. Dunn, F.G.S., draws attention^ to the association of 

 coal seams and glacial beds at Ashford, near the northern 

 boundary of New South Wales; also to a paper- by Mr. David 

 Draper on the occurrence of Glossopteris, Gangamopteris, etc., 

 associated with coal seams at Boschman's Fontein, Maggie's 

 Fontein, etc., in the Transvaal. Mr. Dunn is of opinion that 

 these boulder beds mentioned by Mr. Draper are portions of the 

 Dwyka conglomerate, to which when first recognised he gave 

 its specific name, from the site where it is characteristically 

 .represented. The occurrence in the River Inglis district, south 

 ■of Wynyard, of marine fossils of Permo-Carboniferous age, in the 

 series containing the glacial beds, and the association of 

 •characteristic Permo-Carboniferous plants such as Glossopteris, 

 Gangamopteris, and Noeggerathiopsis, with similar marine fossils 

 in the Mersey Permo-Carboniferous Coal Measures, some 40 miles 

 to the east of this locality, furnish evidence for the correlation 

 of the Mersey series with that south of Wynyard. The wide 

 distribution of massive conglomerates of Permo-Carboniferous age 

 in Tasmania leads one to the opinion that in many other localities 

 than have yet been recognised in that State their glacial origin 

 -will be fully demonstrated. 



The glacial deposits at Wynyard were first noticed by me 

 in December, 1900, when hurriedly examining the Eocene 

 fossiliferous beds at Wynyard. A strong opinion was then 

 formed that they were of glacial origin, but I was not enabled to 

 examine them carefully at that time. 



At the meeting of the Australasian Association for the 

 Advancement of Science held in Hobart in January of this yeai*, 

 I mentioned the matter when the Report of the Glacial Committee 

 was under discussion, and referred to the probable glacial origin 

 of these beds. A subsequent visit in company with the members 

 of the geological excursion of the Association to specially examine 

 the conglomerates fully confirmed this opinion, and the glacial 

 origin of the beds was quickly recognised by the whole party. 



1 E. J. Dunn, F.G.S.: The Northward Extension of the Derrinal Conglomerate (Glacial 

 -Proc. Roy. Soc. Victoria, vol. x., n.s., pt. ii., for 1897. 



'- Quarterlj' Journal Geol. Soc, vol. liii., pt. iii., No. 211, p. 310 et. seq., Aug., 1897. 



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