If those assays were really showing .5-7.7 oz per ton of actual soil you would have the worlds richest gold mine and they would have put that in the PR they released. Since they didn't give the "oz of gold per ton of un-concentrated soil" in the PR I suspect it's not that good. The way I read it, the material the samples were taken from was the material from the sluicing machines. They stated earlier that "Two iterations of gravity concentrations resulted in black-sand concentrates with visible gold." Todays PR says; "Five" separates derived from two placer sample concentrates resulted in the confirmation of Gold on the property.
They went on to say: "UC Hub management has decided to now move to a second phase which will include bulk ore to better determine the economics of their 60-acre Wickenberg placer prospect. The Company can now say with confidence that the sixty-acre cube of precious metals will now warrant the next step of estimations including volume and values of the confirmed gold."
So the results are probably per ton of concentrate. Now they don't say how much concentrate they got from those "tons" of soil, so only they know the true findings which for some "strange" reason they didn't PR, just that further testing is "warranted".
By the way, they now say 60 acres. TSHL only had 25.