Measurements of the magnetic and electrical parameters of rock samples, such as susceptibility, conductivity, induced polarization (IP), resistivity and density can be significant tools in improving geophysical survey programs.
The KT‐20 Physical Property Measuring System measures the magnetic susceptibility, conductivity and density of a geological sample. A new IP/Resistivity system, consisting of a transmitter and receiver (Tx‐ Rx) electronics and sample holder, will add these measurement capabilities to the KT‐20. It can be used as a dedicated IP/resistivity meter, or integrated into an existing KT‐20 magnetic susceptibility and conductivity system.
The KT‐20 IP/Resistivity System employs the traditional Galvanic IP method. The IP decay curves are displayed in real‐time on the KT‐20’s transflective colour display.
The standard KT‐20 IP/Resistivity data is available in two modes: Full Wave Form Time Domain IP measurements with 1024 chargeability windows, as well as the traditional 20 windows. Fast and precise delay curve analysis provides a real‐time evaluation of up to three time constants in three exponentials decay models. IP decay times (Tau’s) are related to the grain size of the chargeable minerals in a sample. This information can be helpful, for example, in characterizing the mineralization associated with small amounts of gold that have no direct geophysical signature.
The KT-20 IP is available in both Standard and Pro models, whose differences are outlined in the document “KT-20 Models” below.