Probabilistic inversion of high-frequency magnetotelluric data for cover thickness estimat

The Curnamona-Delamerian region of Australia is covered by this dataset, which contains probabilistic inversion results from high-frequency magnetotelluric surveys at 172 sites. It was produced by Geoscience Australia as part of the Resourcing Australia’s Prosperity initiative, with results released in March 2026. The release includes graphical statistics summaries and cover thickness estimates derived from millions of resistivity models generated using trans-dimensional Markov chain Monte Carlo techniques.

Use Cases

• Estimate cover thickness for mineral exploration based on probabilistic resistivity-depth models.
• Quantify uncertainty in subsurface layer boundaries based on the full width at half maximum (FWHM) statistic.
• Compare deterministic and stochastic inversion methods for magnetotelluric data.
• Support regional geological interpretation in the Curnamona-Delamerian region based on 172 survey sites.

Strengths

• Results are derived from an ensemble of millions of resistivity models, providing a thorough exploration of model space.
• The probabilistic approach provides a more robust estimation of uncertainty than deterministic methods, as stated in the description.
• Data is associated with a specific government initiative (Resourcing Australia’s Prosperity) and builds on a $225 million Exploring for the Future program.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset's specific license terms are not provided in the input.

Provenance

Source

Geoscience Australia Data

Collection Method

Probabilistic inversion of high-frequency magnetotelluric data using trans-dimensional Markov chain Monte Carlo techniques on data from two surveys.

Freshness

Last updated 2026-03-25 15:33:24.379840; freshness should be verified.

Geography

Curnamona-Delamerian region, Australia