Drill follow up of anomalous radon at the bottom of the snow led to the McClean Lake North Uranium Discovery.
The Radon survey was carried out with alphameters placed under the snow.
- Although the ore-grade mineralization was at 500 feet, anomalous uranium was observed
at much shallower depths. This near surface mineralization may have given rise to the radon
anomaly observed at surface.
- This information and the attached figure were taken from Saracoglu,N; Wallis,R.H.;
Brummer,J.J.; and Golightly,J.P. 1983: Canadian Mining and Metallurgical Bulletin, vol. 76,
- Alphameters have the advantage that they remain at the sample site and collect data
over a period of days, averaging out any temporal variations.
- Our instruments have the advantage of instant results at the sample site,
with the possibility of immediate follow-up and checking.
- Our instruments also determine thoron, and the Rn/Tn ratio is important in recognising
false anomalies due to soil permeability.