|Actually the Poll answer was the Geiger Counter. There is Uranium content in the Conglomerate (between 10 and 50 parts per million), and since the Conglomerate is covered with a layer of earth and vegetation, (that is removed by Hydo once the Conglomerate is detected) the Geiger Counter is their most valuable exploration tool. |
At Pardo, uranium concentrations are known to be closely associated with elevated concentrations of gold in the host conglomerate.
A Quote from a Site Visit I read back then.
But as is the case in the Wits basin, much of the gold mineralization at Pardo is coincident with paleo-placer uranium mineralization in the form of uraninite, so simple hand-held radiometric surveying has proven to be an invaluable technique for finding gold in bedrock under the area’s thin but extensive overburden.During a visit to the property by The Northern Miner in September 2013, Ginguro geologist Winston Whymark scampered across the exposed outcrop at 007 zone, showing how his portable radiometric spectrometer would scream and go off-scale whenever he approached the high-grade gold zones.“We couldn’t have made a better investment than that spectrometer, that’s for sure,” he beamed. “The dots are here, and we’re connecting them.”
Site Visit by Northern Miner in 2014