10th September 2013, 02:14 PM
Dinosaur Wrote:Actually on a lot of the subsoils around here the S&M1E approach may never be replaced by geophys, but keep it up anyway - and please stop topping-and-tailing the mag data, assuming you're also guilty of this crime, just hand the lot over, we've had several potential projects that have been killed-off by geophysicists refusing to provide raw data
Geophysics should only very rarely replace excavation but even on 'tricky' soils a well done geophysical survey can provide useful information.
I think the only reason not to hand over raw data is if you're tying to hide bad data collection that has been processed out so I'm guessing it may not have been geophysicists who didn't hand over the raw data, but someone who wasn't trained properly using geophysical equipment. A handy hint - look for data that has been clipped to standard deviations and not absolute values and ask what the data range is. If its too large ask why the range is so high. Occasionally its down to site conditions but most of the time its bad data.