[Seden]

I was just thinking out loud wondering if Alanso and company were trying to imitate Mass Spectrometry with the Ion Sensor in their detector. Good points though and thank you.

No,what I think would be worthwhile pursing is Spectral Induced Polarization which according to Heikka Vanhala's Doctoral Dissertation that he sent me a copy of, can determine what mineral or metal is by it's grain size. What puzzles me is how such a low frequency can detect grain size. Seems like something that should be up in the 100+GHZ range, not .01-1000hz!
One of these days if I can get up the nerve to write him or that very beautifull Scientist Erika Gasperikova how this can be and if it could be used to detect small objects like coins. Having said that in the book "Looking into the Earth" Chap.23 "Exploration of Metalliferous Ores"sub chap."The formation of ores and their geophysical properties" states "The ore is usually dense,conducting, and magnetic,but if it is disseminated IP is likely to be a better geophysical technique than gravity,resistivity,or e-m". Again Carl would probably be the one to comment on this given his educational background,seems hopefull though,but hey what do I know?
Randy