
TINDALE—SUBDIVISION OF PLEISTOCENE 641 
NARACOORTE TERRACE. 
Naracoorte Terrace is a prominent physiographie feature of the Sontl East, 
rising ont of a strand plain indistinguishable from the ones nearer to the present 
coast. 
The front of the terrace has been traced in detail from the vicinity of Julia 
Till, east of Penola, for just over 65 miles to beyond Padthaway, The present 
writer knows it in the field for the greater part of this distance, ie. trom the 
Tiundred of Comaum to the vicinity of Morambro Creek. The terrace height is very 
approximately 250 feet (78 metres). This is the general altitude of the lowest 
parts of the country immediately to the east of the dune range itself, but these may 
have been redueed by solution and karst draimage. 
Naracoorte terrace deposits consist of a dune series nmderlain by Miocene 
and Baleombian (Pliocene) beds which have been attacked laterally by the sea. 
The dune ridges appear to extend inland from two to five miles; their inner 
limit is known to the writer only in the immediate vicinity of Naracoorte, 
Naracoorte foreshore was mature and the strand plain snggests that during 
the sojourn there of the sea it had been brought to grade, so that there was 
relatively deep water off-shore and the sea was attacking the mainland itself. 
The strand plain fronting Navacoorte Terrace rises from a general level 
somewhere between 160 and 200 feet (49-61 metres) on the inland side of the 
Cave Terrace to a strand-line at an altitude near 215-220 feet (66-68 metres). 
This elevation is roughly indicated by the yeneral oceurreuce of levels of tmterdune 
swamps near the front of the range at many places between Cenola and Naraeoorte, 
This was the latest level of the terrace; at an earlier stage it may have been higher. 
Several streams pass through the Naracoorte Range. Movambro, Naracoorte 
and Mosquito Creeks each snecessfully maintained an open channel through the 
shore deposits of Naracoorte Terrace. They are consequent streams and in 
flowing off the old Upper Pliocene peneplain, in their upper courses, have cut 
down into Pliovene and Miocene beds. 
The extension of Naracoorte Terrace northward through the Ninety Mile 
Desert is not yet traced, Marmon Jabuk Range may be its eontinnation ; however, 
on available evidence this range equally might be the equivalent either of the 
Cave or the East Avenue Terrace. Field work and altitude data are required. 
In the Murray Valley, Mindale (1933, fig. 5) gave a section at Fromm 
Landing, Hundred of Ridley, showing a Post-Pliocene thick (30 feet) arenaceous 
dune-limestone, with marine shells, at an elevation of 200 feet (61 metres) by 
aneroid readings, above local river level. This would approximate to a terrace 
height between 210-250 feet (65-78 metres) above present sea level and so could 
be the local equivalent of the front. of the Naracoorte Terrace, 
