Handles Frequency Domain EM (like the Geonics EM31/34) and Time Domain EM (TEM/TDEM) sounding data.

IX1D allows users to choose between two main inversion philosophies:

The v3.50 interface is built for efficiency. Users can "click and drag" layer boundaries directly on the model plot. As you move a boundary, the software recalculates the synthetic curve in real-time, providing immediate visual feedback on how changes affect the fit to the observed data. 3. Data Integration and Reporting

This allows users to define a specific number of layers. It is ideal when you have borehole data or a strong geological hypothesis you want to test. 2. Interactive Graphical Interface

Supports Wenner, Schlumberger, Dipole-Dipole, and Pole-Dipole arrays.

IX1D is known for its ability to import raw data from almost any instrument manufacturer. Once the interpretation is complete, the software generates professional-grade plots that include the data points, the synthetic curve, the depth model, and the RMS error—critical for technical reports. 4. Equivalence Analysis

While modern geophysics often leans toward 2D and 3D imaging, 1D sounding remains essential for rapid reconnaissance, deep structural mapping, and vertical profiling where lateral changes are relatively gradual. Key Capabilities of v3.50

Despite the release of newer iterations (like the IX1D v4 series), v3.50 remains popular due to its . It is often the "workhorse" version used in academic settings and by independent consultants who require a straightforward, no-nonsense tool that runs perfectly on older hardware or virtual machines. Conclusion

This creates a "smooth" model with many thin layers, which is excellent for identifying general trends and depth to basement without needing a complex starting model.

One of the most powerful features is the . In geophysics, multiple models can often explain the same set of data (ambiguity). IX1D explores the range of models that fit the data within a certain tolerance, helping geophysicists understand the uncertainty and limitations of their interpretation. Why Version 3.50 Still Matters