244 



Charles Fenner : 



These were pointed out to the writer, and the particulars kindlv 

 supplied by Mr. W. Baragwanath, of the Victorian Geological 

 Survey. 



East-west movement has also been reported as taking place in 

 recent years. Mr. W. Bradford, of Ballarat, tells of a case of a 

 shift of about one-foot laterally (E.-W.) in a drive in the Star of the 

 East mine, Ballarat, at the 1300 foot level, subsequent to putting 

 in th^ drive; the particulars of this movement were communicated 

 by him to the Mines Department. Taylor (ref. 52) regards the 

 great N.-S. Lake George fault scarp of New South Wales as being 

 formed 20-30,000 years ago. 



J. T. Jutson, in a paper on the older basalts of Greens- 

 borough and Kangaroo Grounds, suggests that some of the Vic- 

 torian basalts are intermediate in age between the older and newer 

 basalts. As far as our present knowledge goes, this series is much 

 less important and extensive than either of those of the two other 

 periods. In this paper the two chief periods — ''older basaltic "^ 

 and '* newer basaltic " — are used as benchmarks of time, with cer- 

 tain cautions already laid down, and the intermediate series is not 

 referred to. As investigations proceed into the many obscure 



BLaCKWOOD 

 ^4. RANGES. 



B/\LLf\N 

 SUNHLAND. 



BRISB/iNE 

 RRNQES. 



Fig. 14. — Diagram to illustrate the probable relationship of the Older 

 Basalts (O.B.) and tertiaries (Tert.) of the Ballan Sunkland and 

 of Maude to the neig-hbouring ordovician (folded) blocks. 



points of our Victorian geology, demonstrated physiographic facts 

 will no doubt aid the petrologist and the palaeontologist in the 

 elucidation of the problem of the exact distribution of these three 

 basaltic series and their true places in the time-record. For in- 

 stance, the known structural features of the country from the- 

 Divide to the *' Great Valley of Victoria," through the Parwan 

 Valley and Maude, strongly suggest that the older basalts and the 

 overlying tertiary beds of the Bacchus Marsh area may be corre- 

 lated in time with those of Maude, although the former are fresh- 

 water and the latter partly marine. Both series are preserved iit 



