RE: RE: RE: RE: .3 g/cubic meter- more parsing and"1 Sq Km is 1000 m * 1000 m = 1,000,000m. Jr high school geometry.
You underestimated by a factor of 1000. Also, gold is troy oz which is more like 31 g, not 28. "
OK- thanks for correcting- I knew 1km = 1,000m but forgot to square x 1000.
btw, my hs geometry is a distant memory- clouded by ounces of 'gold' that were 28g at the time. ;-)