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Gravity and magnetic surveys are used in regional and deep
exploration, in the prospection of deposits and in engineering
and environmental geophysics. Usually, these methods are
performed to cover prospective areas before the application of
other cost intensive exploration methods.
Integrated interpretation of seismic data with high-resolution
gravity and magnetic surveys is one efficient tool to solve
problems in areas with complex geology.
For data acquisition highly sensitive gravimeters
(Scintre Autograv CG-3M+/CG-5M, LaCoste & Romberg,
Sodin and Sharpe) and magnetometers (proton
precession magnetometers, optically pumped vapor
magnetometers, fluxgate-gradiometers) as well as
state of the art geodetic instruments (electro optical
tachymeter, satellite navigation system for real-time
GPS) are provided.
Magnetic surveys can be performed on-shore, airborne, off-shore
or in boreholes.
For data processing, modelling and geological interpretation a
variety of software modules are in use. Practically all reductions,
corrections, field transformations and different inversion
techniques as well as 2D, 2.5D and 3D modelling are feasible. |
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