NOTES ON THE STRUCTURAL RELATIONS OF 



AUSTRALASIA, NEW GUINEA, AND 



NEW ZEALAND 



E. C. ANDREWS 



Sydney, New South Wales, Australia 



Introduction 



Previous Work Done and Scope of Present Work 



Growth, of Australasia from Pre-Cambrian to Recent Time 



Evidence of the Ore Deposition 



Conclusion 



INTRODUCTION 



The accompanying brief note is an attempt at the co-ordina- 

 tion of our increasing knowledge of the structural development of 

 Australia and the neighboring islands. 



The ideas given in this note are intended only as a temporary 

 viewpoint from which to consider the work of the great pioneers 

 of geology in Australia and as an inference or tentative hypothesis 

 to stimulate interest in those magnificent field problems in Austral- 

 asia, New Guinea, New Caledonia, and New Zealand, which call 

 so urgently for solution. In this way it is hoped that the scheme 

 here proposed will serve as a rough clue to the unraveling of certain 

 vexed questions in the stratigraphic and structural history of 

 Australia. 



Several difficult points need explanation before any simple 

 account of the building of Australia would be possible. Thus in 

 the discussion of the Devonian it must not be forgotten that folds 

 supposed to be of this age occur in Northwest Australia. Highly 

 altered rocks of unknown age and of large area occur also in North- 

 ern and Northeastern Queensland, and the occurrence of these has 

 not been explained in the present note. Then again, it must not 

 be forgotten that our knowledge of some of the Permo- 

 Carboniferous rocks, such as the Gympie of the Queensland geolo- 

 gists, is far from satisfactory. 



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