The Tidal Irrigation and Electrical System

This is not my normal area of interest but recently I was looking at some high resolution topographical maps of Australia and noticed what looks like a series of impact craters. As they are all in a line and seem to have the same topographic profile, I surmise that they occurred in an event much like the Shoemaker-Levy 9 impact with Jupiter. Take a look at the following images:

Australia

In the centre south of the country is the Nullabor Plain

To the north of the Nullabor Plain are a series of features that appear to be impact craters. (click on the below image to see it in full)

Notice the linear nature of the impacts and that the eastern edges appear to have a similar profile. The Nullabor Plain was created by separation of Australia from Antarctica and is structurally similar to the northern coast of the Gulf of Mexico. Curvilinear features like these are unlikely, in my opinion, to be the result of an other event besides that of a celestial impact.

Tags: Australia, Discovery, impact crater, Nullabor Plain