92 SUNKLANDS OF PORT PHILLIP BAY AND BASS STRAIT 
28-fathom outlet. About a mile E.b.N, of the 30-fatbom outlet 
is the 28-fathom outlet, wbieli also points N.N.W. towards the 
Tootgarook outlet. The drift at 170 feet in Bore No. 4, Wannaeue, 
was probably deposited in a tideway leading to it. It opens 
towards a tributary of the broad valley (Big. 7) coming from the 
direction of The Heads that falls into the 45-fathom depression. 
25-fathom outlets. Two of these outlets, respectively 7 and 8 
miles W.N.W. of Cape Schanck, probably emptied into the same 
valley as the 28-fathom outlet. 
24-fathom outlet. This, 3^ miles S.W. of The Heads and 4-^ 
miles S.E. of Barwon Heads, served both as an outlet of the 
Barwon River, and an earlier cycle of the Yarra River. 
20-fathom outlets. About 4 miles south of The Heads, and 
pointing towards them, the main 20-fathom outlet is the most 
conspicuous and best formed of all the outlets. It is seemingly 
a cul-de-sac, narrow and relatively deep (54 feet), with steep sides 
sloping inwards towards its floor. About 6 miles E.b.S. of the 
previous outlet, is that of Capel Sound Tideway (p. 90). 
14-fathom outlet. This is an outlet pointing N.E. b. N. towards 
Symonds Channel; it is 3^ miles south of Point Nepean. 
V. Cycles of Sedimentation and Accumulation Evident in 
the bores. 
Alternate cycles of sedimentation and accumulation can be 
recognised in the classes of sediment and their sequence in the 
Wannaeue and Sorrento Bores; these can be interpreted in the 
light of what is now happening on the Nepean Bay Bar. The 
cycle covering dune accumulation may be referred to as the “dune 
