[Proc. Roy. Sor. Victoria, 24 (N.S.), Pt. I., 1911.] 



Art. XII. — Notes on the Geology of Broadmeadoics. 



By F. L. STILLWELL, B.Sc. 



(Kernot Research Scliolar, University of Melbourne). 



(With Phxtes XLUI.-XLIY.) 

 [Read 18th July, 1911.] 



Introduction. 



The area dealt with in this paper has been mapped bv the 

 Geological Survey of Victoria on the quarter sheet No. 2 S.W., 

 and lies mainly in the parish of Will Will Rook, and the northern 

 part of the parish of TuUaniarine, in the County of Bourke. 

 It includes the low granitic hill of Mt. Gellibrand and the valley 

 of Broadmeadows, 



The following stratigraphical horizons are met with: — 

 Post tertiary - Alluvium. 

 Limestone. 

 Tertiary - - Newer basalt. 



Sands and c^uartzites. 

 Older basalt. 

 Clay bed. 

 Palaeozoic - Devonian. 



Silurian. 

 These will be considered in order, commencing with the 

 oldest. 



Physiography. 



The area is drained ])V the Moonee Ponds Creek and tribu- 

 taries, whose valley is separated by a basalt-capped ridge from 

 the valley of the Saltwater River, two or three miles to the west. 

 This ridge continues northwards and southwards, and the two 

 valleys remain more or less parallel throughout their whole 

 length till finally, still distinct, they enter the Yarra. 



