Geophysics for the Exploration Geologist: Traditional Approaches and Recent Innovations |
Common terms and phrases
AEROMAGNETIC SURVEYS airborne surveys amplitude anomalies anomalous response apparent resistivity basic borehole channels component conductive conductors contour correction density depth detection detector dipole earth effects electric electromagnetic estimates invalid Feldspathoidal felsic field strength Figure filter frequency domain gamma radiation gamma ray geological noise geological structures geophone gm/cc gradient graphite gravity ground hence HLEM horizontal host rock in-phase induced polarization induction INPUT instrument interpretation IP/resistivity line spacing magnetic field magnetic susceptibility magnetite magnetometer magnetotelluric measured meters mineral exploration moving-source multi-frequency normally operation orebody overburden parameter phase physical noise physical property pole-dipole potential primary field procedure profiles quadrature radiometric receiver coil refraction secondary field secondary response seismic reflection seismic wave sensitivity shear signal signal noise signal stacking spatial sulphide surface survey area telluric telluric currents terrain thorium tilt angle transient transmitter loop Turam Tx-Rx Typical uranium vertical voltage