Australia's Interior Sea?

Question

Australia is known to have it’s interior covered by sea in it’s geological past. Is there anything stopping this happening again?

Answer 1

Past interior seas in Australia (eg. Cretaceous) coincided with periods of very high global sea levels - up to 200m above the present. The Australian continent itself has also been uplifted since this time.

If all polar ice melted, we would get a global sea level rise of about 70m (the difference is due to very long-term geological factors which affect sea-levels, like the sinking of sea-crust as it moves away from spreading ridges). This wouldn't give us much in the way of interior sea. Look for an elevation map to see what would happen.

Answer 2

First of all, the possessive "it" is "its". "It's" means "it is"

Secondly it's unlikely since Australia is going through very much geological change these days. The Blue Mountains used to be our crumple zone and the area round Hughenden got pushed down a bit.

Now New Guinea is the plate front and it's all a bit more peaceful in West QLD.