Geer got it right. Here's the math.
1ppm = 1mg/kg. therefore 1ppb = .001mg/kg
1000kg=1metric tonne. 1000mg=1g
.0104mg/kg=.0104g/t
Of the 1,124 soil samples delivered to Acme Labs, 1,014 samples returned assays (111 samples did not contain sufficient sample material to be fully analyzed). Gold-in-soil results ranged from trace to 851 ppb Au. 566 of the soil samples returned results below detection limit and 447 soil samples returned results of 2 ppb Au or greater. These 447 samples averaged 10.4 ppb Au, with 70 samples returning values of 11 ppb Au or greater.
The eight (8) silt samples collected returned values from trace to 36ppb Au. Three (3) of the silt samples returned results below detection limits and five (5) samples reported 2 ppb Au or greater. These 5 samples averaged 9.2 ppb.
The 28 rock samples collected and analyzed ranged from trace to > 10,000* ppb Au (*resultant assay was above analytical detection limits and the over-limit assay has not yet been received). Eight (8) of the 28 reported assays below detection limit and twenty rock samples graded 3 ppb or above.
Averages showing single digit ppb is not a great strike by any means.
The few results showing peaks of >10,000ppb or >10g/t are the only encouraging news here.