61 
RIVER TERRACES OF THE MARIBYRNONG RIVER, VICTORIA 
river level increase. In some places their surfaces have been 
modified by cultivation and operations for irrigation purposes. 
Where this has happened, exact levels of the original surface 
cannot be accurately determined. Paired terraces have been 
formed at several places (Fig. 1) such as Dry Creek, near Salt- 
water Creek, the Electric Transmission Line, below the Albion- 
Broadmeadows railway bridge, at Chinaman’s Ford, and, as noted 
by Hills, at Maribyrnong (Ascot Vale Gap) and West Essendon. 
There are also a number of subsidiary terraces due to minor 
adjustments and alterations of the streams such as shifting 
meanders. One or more of the terraces have in some places been 
almost obliterated by erosion. 
On the right bank of the river between Dry Creek and Keilor 
township, the Keilor Terrace is about a quarter of a mile wide, 
but its surface level has been disturbed by cultivation. The most 
extensive portion retaining its natural surface is near the Electric 
Transmission Line ; it is here about 150 yards wide. The surface 
of the Keilor Terrace marks the level of the first, the highest, and 
the most extensive flood plain in the Maribyrnong Valley. 
The level of the Braybrook Terrace at Dry Creek is 7 feet below 
the Keilor Terrace, but at Chinaman’s Ford (Fig. 5) the difference 
in levels is 13 feet. The largest remnant, measuring about a mile 
north and south, and a third of a mile east and west, is situated 
at Braybrook; its surface level there is 58 feet above L.W.M. 
The Maribyrnong Terrace continues below Ascot Vale Gap 
(Fig. 6) along the former course of the river east of Quarry Hill; 
in this locality it was a paired terrace about a third of a mile wide. 
Its surface upstream from the Footscray Warp is 32 feet above 
L.W.M., and adjoining it is another terrace 27 feet above L.W.M., 
a meander of the higher one. At Dry Creek, its surface is 18 feet 
below that of the Keilor Terrace, and at Chinaman’s Ford 35 feet. 
Evidence of Post Glacial Eustatic Adjustments on the 
Shores of Port Phillip Bay and the Yarra Delta 
The evidence of the post glacial 15-20 feet eustatic fall of sea 
level found at so many places on the Australian coast is preserved 
at a number of points on the shores of Port Phillip Bay. It will 
suffice to mention two that have been examined in some detail: 
one at Hampton, east of the Yarra Delta, by Hart (1893), and the 
other at Altona, west of the delta, by Hills (1940). 
At Hampton the wave platform (Fig. 7) which appears to have 
been formed on a raised beach is 23 feet above L.W.M., but there 
is evidence of a small amount of tectonic uplift since it was 
