\ "* 



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4 vy 



'/ \ T r 



s 



stable than the Westralian example. It faces the Pacific ii 

 and is separated from the west by a heavy sinking area. The concave coast 

 line from Hobart to the Leuwin appears to indicate a faulting from the 

 Westralian horst, owing to isostatic readjustment in late geological time. 

 Central Australia, the base of the Tasman Sea, the Jeffrey Deep, and the 

 base of the South Pacific may be considered as four "negative" or heavy 

 areas, the readjustments of whose masses has led to the formation of the 

 Australasian and New Zealand plateaus in closing Tertiary time. The 

 arrows indicate the directions from which the forces came which produced 

 the vertical readjtti • •'■ I £ the fault blocks. 



This scheme is merely a suggestion for intending workers in this field. 



