need simple device detects gold 1-2 meters depth

[Fred]

Originally Posted by Esteban

For detect treasure = mass.

Why not ? you could detect alterations in attraction forces in comparison with surrounding soil.But we know that this force in invertely proporcional to square of distance, so it is soooo weak...unless you are looking for tons of gold...
Should look to gravimeter.Maybe one will end detecting the moon
regards,
Fred.