Good job Hog & Prime (much better computer skills than I'll ever have), I'll just repost the approx volumes I had from this image the other day (the scales were not exact, but these are very close). And just think how much we're still missing on this image?:

Zona Central: (1800M X 1700M X 1300M)

Runs (tip to tip) from L3250N to L5750N , but the main body runs from approx L3500N to L5300N(1800M)

And it runs approx from 350 to 2050 (1700M)

And the depth, as they stated 1300M

Zona Sur: (800M X 1000M X 300M) I'd say this should have been bigger?

Runs from L1750N to L2750N (1000M, they say 800M)

And it runs approx from 350 to 1350 (1000M)

And the depth, as they stated 300M

Also on Zona Sur, off to the east I'd say there is a piece that's 400M X 300M X 300M

Zona Incognito: (Dimensions not mentioned in the NR)

I'd say it was 450M X 450M X 300M ? (assume same depth as Zona Sur)

So, Total Volume from what I see so far should be:

1800M X 1700M X 1300M = 3978 MM3

800M X 1000M X 300M = 240 MM3

400M X 300M X 300M = 36 MM3

450M X 450M X 300M = 60 MM3

Total Volume = 4314 MM3 (from the anomallies we see so far, and my best guessing?)

Total Ovoid volume from above (divide by 2) = 2157 MM3

2157 MM3 X 2.5 T/M3 X 1 g/T X 1OZ/31.1g

173 Million OZ @ 1g/T

86.5 Million OZ @ 0.5 g/T