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What are Resistivity (DC) And Induced Polarization (IP) Surveys?

Resistivity (DC) and Induced Polarization (IP) is an electrical survey method used for measuring the electrical properties of the subsurface. In a DCIP survey, a time-varying current is injected into the ground using two current electrodes and the resulting potential field voltage distribution is measured. The measured response is then used to calculate the apparent resistivity of the ground. The phase shift or time decay is measure with great accuracy and presented as chargeability. The chargeability is similar to measuring the capacitance effect of the ground which can be a measurement of disseminate mineralization.

Direct Detection

Key Features And Benefits Of Resistivity (DC) And Induced Polarization (IP) Surveys

Depth Penetration

Depth penetration depends on a large number of variables including array size, subsurface resistivity target size, target response ect. Utilizing large 3D arrays in resistive ground we can penetrate to a km in depth. MT can be easily added to the resistivity survey increases the depth penetration significantly.

Variety of Arrays

Wide variety of survey arrays and configurations that are selected based on the survey objectives: 3D modified pole-dipole, 2D pole-dipole, 2D dipole-dipole, gradient, ect.

Maps Stratigraphy

Commonly used for mapping stratigraphy, structure, and alteration of rocks and soils. 2D and 3D inversion algorithms are used to generate subsurface models.

Chargeable Measurements

Direct detection of disseminated sulfides using chargeability (i.e. porphyry copper deposits, disseminated halos around massive sulfide deposits).

DC and IP Survey Services Provided by SJ Geophysics

  • Featuring Volterra-IP

  • 2D & 3D Ground acquisition of IP data

  • 2D & 3D DC/IP inversions

Partner with SJGeophysics

Choose SJ Geophysics for your exploration needs and benefit from our deep understanding of geophysical phenomena. With our range of surveys, commitment to quality, and innovative spirit, we stand ready to assist with your project’s success. Contact us to tailor a geophysical consultation that fits your objectives and unlocks your project’s full potential.