
626 RECORDS OF THE S,A, MUSEUM 
The time seale of Crocker and Cottou is of little interest; it has not taken 
into consideration the data of Lewis, Zeuner and other workers, Post-Pleistocene 
tectonic movements in the South East, on the scale necessary to produce the effects 
claimed, would seem to require more direet proof than is offered, Fall to the 
norih, seen in stream channels of Hast Avenue Range, was interpreted as evidence 
for tilting of this terrace. 
With newly-available survey data, Crocker and Cotton were able ta make 
altitude estimations for several of the earlier terraces. A new reading of 
105-110 Feet (32-34 metres) for the East. Avenue terrace seems to eliminate one 
of the major Giserepancies between the Zeuner and Tindale terrace heizhts. 
Zeuner, 1945. Crocker and Cotton, 1946. Tindale, 1933. 
Sicilian (260)-825 feet, Naracoorte Range, 220-250 feet, Naracoorte 
Terrace, 250 feet. 
Milazzian, 205 feet, Cave Range, 180-190 feet. Cave, 200 feet. 
Tyrrhenian, 104 feet. { Baker Range, 140-145 feet, {Hast Avenue, 
(East Avenue Range, 105-110 feet.{ 150 feet. 
West Avenue Range, 85-90 feet, West Avenue, 
Main Monastirian, 60 feet. 90 feet. 
| Reecdly Creek Range, 70-75 feet, Reedy, 65 feet. 
Late Monastirian, 25 feet, Woakwine Range, 20-25 feet. Woakwine, 25 feet, 
Since Crocker and Cotton worked without consideration of the work of Lewis 
and of Zeuner their figures may be held to furnish useful confirmatory data for the 
identification of terrace levels, Only for the Naracoorte terrace is there now any 
considerable difference between South Australian and the general evidenee for 
Pleistocene eustatie shorelines on stable foreshores, For this difference an 
explanation in terms of Late Pliocene-Karly Recent epeirogenie movement may 
be valid, but the discrepancies are so relatively minor and the available survey data 
so little organized that the apparent differences may be resolved upon further 
study. The Naracoorte shoreline, marking probably the edge of a vast. late 
Pliocene peneplaned land surface, has so far as it has been examined, revealed a 
shoreline of complexity sufficient to warrant separate and detailed study, 
Beasley (1947) in the course of a field study of the ocenrrences of black sand 
seams in South Queensland, is one of the latest Australian writers to discuss 
eustatic terraces. Between Southport and the New South Wales border the land- 
ward margin of the coastal plain marks his ‘' Post-glacial’’ terrace, It lies on the 
25 feet (7-5) metres contour line, as shown on the Commonwealth One Mile 
Military Map, at a distance inland of approximately five miles. It agrees thus 
