48 
SHAPES AND FEATURES OF AUSTRALITES 
anterior surface is flow-ridged. A highly contorted flow-line pattern 
occurs on the posterior surface of the core, a concentric flow-line 
pattern on the flange. The shape does not appear to be due to 
fracturing. Fenner (1940, p. 316) described a somewhat comparable 
form with a flange on one side only as resembling a Cornish pasty. 
Locality: East of Deany Steps, 1| miles east of Port Campbell. 
Fig. 5. An irregular oval, with a flat, bubble-pitted posterior surface on which 
is a curious fleur-de-lys-shaped depression, less bubble-pitted and more 
flow-lined than the rest of the posterior surface; this depression has 
probably resulted from the bursting of coalesced, larger bubbles. The 
anterior surface is smooth and flow-ridged. Locality: Half a mile 
east of Sherbrook River. 
Pigs. 6A and 6B. Side and posterior surfaces of a form with strongly marked 
flow lines trending towards a small flange at the right-hand end of the 
posterior surface. Bubble pits elongated parallel to the flow lines; 
flange thin. Anterior surface (bottom of fig. 6A) carries circular 
bubble pits, crinkly and irregular flow ridges, and occasional flow 
lines simulating symmetrical compression folds. Locality : Near Gravel 
Point, 3 miles east of Port Campbell. 
Plate VIII 
Pigs. 7A and 7B. Anterior surface and end-on aspect of a curious form which 
appears to have been squeezed at one end. The ragged outline of the 
top end (fig. 7A) results from erosion of the thin edge. Outstanding 
features are a fingernail-like impression on the posterior surface and 
opposite this, on the anterior surface, a constricted, elevated, flange- 
like structure (bottom of fig. 7A). Most flow ridges and flow lines on 
the anterior surface are parallel to edges. Locality: Broken Head, 
4 miles east of Port Campbell. 
Pig. 8. Posterior surface of an elongated, very thin, traylike form with 
prominent, elongated bubble marks coalescing on the posterior surface ; 
there is no defined core or flange. Occasional small bubble pits and 
flow lines on anterior and posterior surfaces; the flow lines frequently 
conform to the shapes of the larger bubble cavities, but some trend 
across them. The base of one bubble cavity has worn away, leaving 
a hole through the specimen. Locality: South side of Great Ocean 
Road, 3| mUes east of Port Campbell. 
Plate IX 
Pigs. 9A and 9B. Posterior and side aspects of a pear-shaped form. Molten 
glass from the anterior surface has flowed over part of the bubble- 
pitted equatorial portions of the posterior surface; the prominent 
groove in it was probably formed by escaping gas. A small flange 
subsequently developed along the tapering sides of the australite. On 
the anterior surface (fig. 9B) wrinkled flow ridges are prominent, 
and on the posterior surface, bubble pits elongated parallel to the long 
axis pass into shallow flow grooves at the tapered end. Locality : West 
of Port Campbell. 
Figs. lOA and lOB. Posterior surface and side aspect of a ladlelike form from 
which part of the narrow end has broken away. On the posterior 
