Geophysical Methods (Summery)

MethodMeasured parameterUsed physical propertySuitable deposits type
SeismicTravel time of reflected
&
refracted waves
Density and Elastic mode
Velocity and Acoustic
Coal, Oil, Gas, Groundwater,
Layered sedimentary basin,
Ni- Cu- PGE in volcanic basal flows
GravityGravity
(Variation in earth’s gravitational field)
Density contrast between the surrounding and host rockMassive sulfides, Chromite, Ni-Cu- PGE, Salt dome, Barite, Kimberlite pipes,
Concealed basins
MagneticVariation in Earth’s magnetic fieldMagnetic susceptibilityMagnetite, Ilmenite, Pyrolite-rich sulfides, Ni-Cu-PGE
Electrical
(Resistivity)
Earth’s resistanceElectrical conductivityGroundwater, Sulfides, Ni- Cu- PGE
Electrical
(Induced potential)
Polarization voltage/ frequency development of ground resistanceElectrical capacitanceLarge sulfide dissemination, Ni- Cu- PGE, Graphite
Electrical
(Self potential)
Electrical potentialElectrical conductivitySulfide veins, Graphite, Groundwater, Ni- Cu- PGE
ElectromagneticResponse to electromagnetic radiationElectrical conductivity and conductanceSulfide, Cr- Ni- Cu- PGE ore, Graphite
RadiometricGamma radiationGamma rayThorium, Uranium, Radium
Borehole geophysicsDownhole probeAll typesContinuity of sulfide, Ni- Cu- Cr- PGE in strike and depth
Shopping Basket
Scroll to Top