I recently had a chat with Richard Bell and he was talking to me about parent material and saying that while we are discussing parent material and the soil that comes from that parent material, the parent material in WA is old, but the soil, in his opinion, is young and changing because of that biological part.

Western Australia is actually regarded as a very stable state geologically.

You know, we have the Yilgarn Craton.

And the thing that's different about Western Australia is that we had no kind of volcanic period in between, and then we had this marine regression, then sand blew in over the top, we get a little bit of siltstone, and that's about it for Western Australia.

And so when it comes to, you know, parent material, a lot of our landscape is very old, you know, parched sediment, you know, rock outcrops and various other bits and pieces.

We've had some faulting and we've had some uplift and we've had some shear zones and other things like that sort of, influences the hydrology in the landscape but its soil forms from rock and as the rock breaks down they call it soil weathering and in some instances it can be very slow.

The drivers, Richard's correct, the drivers are biology.

Yeah.