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.
References in periodicals archive ?
The survey is to include magnetic, gamma- ray spectrometry and time-domain electromagnetic surveying Response deadline (Irish time) 10-04-2015 13:00
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.
Experts in Controlled-Source Electromagnetic Surveying (CSEM), Electromagnetic Geoservices ASA (EMGS), is deploying 6G technologies from Sonardyne International Ltd.
An Australian company, Bora Bora Resources Limited has began airborne electromagnetic surveying at its Matale Graphite Project in Sri Lanka.
Planning and approval processes are now in progress for follow-up reverse core drilling to test for mineralization and set up a platform for deeper down-hole electromagnetic surveying. The Livingstone Project includes an area of 208 square kilometres over the western extension of the Proterozoic-aged Bryah Basin and it is centred along a major crustal-scale shear zone at the northern margin of the Yilgarn Craton.
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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