CSAMT & RIM

[bill.b]

Hello,

I was just wondering if someone could some what explain to me the concepts behind Controlled source audio-magnetotelluric and radio imaging. Or somewhere i could have a read about them?

Regards,

Bill

[bill.b]

anybody?

[99thpercentile]

I have a Geometrics StrataGEM that I use occasionally and I recall that the user manual covers the basic theory pretty well. You can download it from the Geometrics web site.

[Dude]

CSAMT

Bill,
Log on to WWW.zonge.com they should have some background on CSAMT as they were the first to develop it.
Its a frequeny domain sounding. You tramsmit a high power signal (20kw) square wave into a grounded dipole 3 skin depths away from your survey area (at you lowest frequency). By transmiting different frequencies you get a cagniard resistivity ve depth by taking the ratio of the squrae of the electric fields divided by the magnetic fields of a reciever that has a mag field sendor and a ground dipole 3 skin depth away. It basically a deep sounding technique. RIM would be Ground Penetrating Radar type surveys and are very shallow in depth of penetration.
Dud
KK7IF