Since 1994

EMIGMA for IP/Resistivity

IP/Resistivity Flyer

Contoured PseudoSection
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Contoured PseudoSection

The Resistivity/IP software package is available as part of EMIGMA Premium or Professional Complete, as a standalone product or an add-on to other EMIGMA software licenses. It allows for various geophysical survey configurations (dipole-dipole, pole-dipole, gradient, borehole, cross-hole, Schlumberger, Wenner) and with 3D Inversion it offers a full range of functionalities required for the successful interpretation of IP/Resistivity data.

Includes functionality for MIP and MMR

Unlimited survey size!

Data Import

  • Time Domain IP - Zonge, ELREC6, Scintrex formats or as an ASCII text format
  • Frequency Domain IP - Zonge or ASCII text format
  • Resistivity Data with Phase if available - Zonge, SYSCAL(standard crosshole ASCII format),
    Generic ASCII text file

Data Processing and Correction

  • 1D digital and spatial filters - Mean, Median, Gaussian and Sovitzky-Golay
  • Smoothing and Decimation
  • Data Corrector tool combining dynamic spreadsheets and a line plotter for data cleaning, missing data interpolation and simultaneous plotting of different data channels for fast cross-analysis
  • Survey merging

3D Modeling

Crosshole resistivity modeling
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Crosshole resistivity

EMIGMA's tools for 3D geophysical modeling of both Resistivity and IP are exceptional. The solutions are stable for electrodes near or inside anomalies; they are fast and accurate and on the IP side include many of the physical effects unavailable in other applications. With EMIGMA, you can model the so-called EM effects, off-time or out-of-phase resistivity contrast effects and you can also obtain MIP solutions.

  • Fast and accurate 3D simulations: model suite generation and batch mode
  • Unlimited prism, plate and polyhedra targets
  • Multiple body interactions
  • Modeling of topography effects
  • Frequency-domain and time-domain IP
  • Magnetic effects in IP/Resistivity data
  • Variations in resistivity and Cole-Cole parameters
  • Ability to handle full contrast between host and bodies
  • Interactive 3D model building tool

3D Resistivity Inversion

  • Supports dipole-dipole, pole-dipole and pole-pole surveys
  • User defined starting model and inversion parameters
  • Model resistivity constraints

1D Resistivity Inversion

Inverse Resistivity Section
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Inverse Resistivity Section
  • Resistivity depth inversions and 3D volumes
  • Smooth Occam technique with fixed layer thickness
  • Underparametrized Marquardt technique with full resistivity and thickness constraints
  • User defined starting model and inversion parameters
  • Two forward techniques

Data Display and Analyses

Raw data section
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Raw data section
  • 3D data display as profiles, vectors, true 3D surfaces or contoured surface with 3D structure representation
  • Section cutting of 3D model displays in the 3D Visualizer
  • Pseudo-sections, depth images
  • PEXShow tool - 2D representation of Resistivity inversions with easy-to-switch-to susceptibility and conductivity sections
  • PseudoSection tool
  • Grids: Natural Neighbor, Delauney Triangulation, Minimum Curvature and Thin-Plate-Splines
  • Contours: 2D and 3D surfaces
  • Line plots
  • Residual plots
For more detailed data display capabilities, see EMIGMA Complete