j>10 Charles Fenner : 



Andrews (ref. 1, p. 457) believes that the peneplaiiation in New 

 South Wales, by analogy with that of Western America, may be 

 assigned to tertiary times, and that the block faulting, plateau 

 forming, and gorge carving may be assigned to the Ozarkian or 

 ^ierran (Pleistocene age). 



(c) Previous work on this matter in Victoria. — It will be of 

 .advantage to examine the results arrived at concerning tliis matter 

 by various independent workers in Victoria. 



./. T. Jut son (ref. 33) deals with the Nillumbik peneplain, near 

 Mellx)urne, a less uplifted portion of the great peneplain. He 

 proves that the uplift there was differential and gradual, and 

 believes tliat the older basalt of Kangaroo Grounds was erupted 

 prior to tlie completion of the peneplain. 



T. S. Hart (ref. 22, p. 272) believes our highlands " to be due to 

 the unequal block elevation of a Mesozoic or early Tertiary pene- 

 plain, with subsequent extensive modification by denudation and 

 -volcanic activity." 



J). J . Mahony (ref. 31), p. 377) speaks of our Inghlands as "a 

 dissected peneplain," differentially uplifted. He postulates a long 

 pre-Miocene period of quiescence followed by a great uplift, with 

 vertical movement. He believes the oldei' basalts to be associated 

 with the first great period of earth movements, while the newei* 

 basalts ** mark the close of the last great movement that elevated 

 •our Victorian Kainozoics." 



Professor David' (ref. 12, p. 287) sums up thus: " In either very 

 late Pliocene, or very early Pleistocene time, the earth's crust, in 

 the Australian and New Guinea region, was subjected to consider- 

 iible diastrophism. The eastern periphery of Australia, includ- 

 ing Tasmania, was warped up to altitudes of over 3000 feet above 

 the sea." 



Professor Skeats (ref. 47, pp. 188-189) suggests that the first 

 peneplain uplift in Victoria was post Mid-Kainozoic, followed by 

 later uplift and dissection, with consequent formation of another, 

 the peneplain; the present sui'face features being the result of a 

 still later uplift and consequent erosion. Professor Skeats ali^o 

 suggests (B.A.A.S., 1914, p. 360), a post mid-tertiary age for the 

 '*' succession of elevatory movements of the plateau type," that have 

 affected the Omeo district in eastern Victoria. 



N. R. Jjrtuier (ref. 36), who also investigated the Nillumbik 

 peneplain, believed the uplift to be Kalimnan, and to have been 

 •differential and gradual, without faulting in that area. 



