TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

GEOMAGNETIC DEEP SOUNDING [1 record]

Record 1 2015-03-24

English

Subject field(s)
  • Geophysics
  • Deep Drilling (Mines)
DEF

... process of mapping the anomalous variation fields with arrays of three component magnetometers ...

OBS

A number of magnetic variation anomalies observed in geomagnetic deep-sounding studies can be attributed to inhomogeneities of electrical resistivity in the upper crust.

OBS

In the French texts consulted, "magnétique" was used to convey the same meaning as "geomagnetic" when referring to "sondage".

French

Domaine(s)
  • Géophysique
  • Sondage profond (Mines)
DEF

Méthode de sondage magnétique permettant de détecter des anomalies dans la distribution des courants telluriques profonds.

CONT

On peut [...] associer l'existence d'une composante verticale [...] à celle d'une inhomogénéité de conductivité à l'intérieur du sol. On arrive ainsi à une méthode connue sous le nom de "sondage magnétique profond" [...]. Elle consiste à rechercher d'abord une région "normale" [...] caractérisée par l'absence de champ vertical de variation Z, puis à enregistrer simultanément en plusieurs points de la région anormale, le champ transitoire vertical, enfin à essayer de relier Z à la composante horizontale normale [...]

Spanish

Campo(s) temático(s)
  • Geofísica
  • Perforación profunda (Minas)
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