Mesozoic Rocks. 
77 
coast scenery are afforded by the perpendicular cliffs, frequently 
over .300 feet in height, with the shelving rocks and broken masses 
at their bases lashed by the u rollers 99 of the Southern Ocean 
which hero burst ceaselessly upon them. (Fig. 25.) 
Fig. 25. — Castle Hock, Cumberland Creek. 
(From a sketch made on the spot by It. Brough Smyth.) 
Stratum of dense blue shale 7 feet thick, overlaid by a sandstone cliff 00 feet in height. 
The Cattle Rock exposes a section of coarse-grained yellowish-grey Mesozoic sandstone! 
upwards of 400 feet in thickness. Dip of beds, E. 5°, S. 20°. 
The Mesozoic rocks underlie the tertiories between Geelong and 
Queenscliff, as several outcrops of the former are visible, and there 
is very little doubt that they extend beneath the southern part of 
Port Phillip, a small portion of their edge being visible on the 
eastern shore of the bay near the foot of Mount Martha. 
The ridge formed by the granite and the Silurian rocks extend- 
ing from Berwick down between Port Phillip Bay and Western 
Port, though cut down and covered in places by low-lying tertiaries, 
probably separates the Mesozoic rocks of the Geelong and Capo 
Otway area from those of Western Port and South Gippsland. 
The beds of the two areas are probably continuous with one another 
beneath the sea, and may possibly be united by a narrow neck 
beneath the tertiaries of the Carrum and Koo-wee-rup Swamps. 
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