Remote prospectors have a challenge to go where others have not gone. It means going deeper into the bush and looking deeper into the earth to find GOLD. It also requires prospectors to use new tools that set them apart from other prospectors. That's why metal detector manufacturers keep coming out with better detectors!
He who has the best detector wins;

Having the detector systems mentioned in recent posts moves the ball forward for anyone wishing to explore into the realm of hidden GOLD deposits at greater depth.
But... Wait, we have one more tool to put in our tool box!
An interesting phenomenon was observed by prospectors. The voltage in the ground like a current was turned OFF, the voltage would return to zero. Improved methods would reverse the potential applied to the electrodes. In areas where there was heavy disseminated mineralization, the voltage would be seen to be a steady level.
The phenomenon was called the effect.
So, prospectors had a NEW method for finding disseminated mineral deposits!
Don't go away!

- Geowizard