A Little more on Radiometric SurveysOf course, the question to be answered is, "Why would they do this?"
Bahman said he thought it was to look for potassic alteration. The chart in the attached link indicates that a combined radiometric-gravity survey is best suited to exploring for IOCG Iron Oxide Copper Gold.
https://precisiongeosurveys.com/wp-content/uploads/file/Precision%20Brochures.pdf
We know we are in the oxide zone at Boleras, but this brochure has really peaked my interest to see what the latest airborne survey might indicate.
The best result would be a strong and clear signature corresponding to the known orebody at Boleras. And a whole bunch of similar signatures in the same area.