electromagnetic surveying

electromagnetic surveying

[i¦lek·trō·mag′ned·ik sər′vā·iŋ]
(engineering)
Underground surveying carried out by generating electromagnetic waves at the surface of the earth; the waves penetrate the earth and induce currents in conducting ore bodies, thereby generating new waves that are detected by instruments at the surface or by a receiving coil lowered into a borehole. Also known as electromagnetic prospecting.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The LPA had tapped EMGS, headquartered in Norway, to conduct electromagnetic surveying of Lebanon's near coastal waters as well as other areas further out to sea.
"EMGS, headquartered in Trondheim, Norway, offers services based on its proprietary seabed logging technique (controlled-source electromagnetic surveying technology) to the oil and gas exploration industry.
They travel from discussion of the refraction and reflection methods of seismic exploration to examination of electrical resistivity, gravity, magnetics, and electromagnetic surveying. The CD-ROM contains computer programs that perform forward and inverse modeling for the major exploration methods discussed in the text.
EMGS, headquartered in Trondheim, Norway, provides seabed logging services using a proprietary electromagnetic surveying method.
emgs, headquartered in Trondheim, Norway, provides seabed logging services utilising a proprietary electromagnetic surveying method.

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