18th September 2013, 01:00 PM
Unitof1 Wrote:...It seems to me that using geophysics to deselect areas for evaluation because all that is left is plough soil or some other homogenised deposit (or select areas for less evaluation) is what dino thinks is going on with geophysics....
Geophysics is only really any good for spotting cut features, walls, burnt things and, occasionally, stuff like surfaces, when it works at all. That's where other types of evaluation like fieldwalking come in - flint scatters are usually entirely in the topsoil and don't show on any type of geophysics, for instance, but of course usually go away when you topsoil strip, will shortly be having that one out with a client...