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Thermo-chemical inversion of the Australian lithospheric mantle (KY22)

Created 16/10/2025

Updated 16/10/2025

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Lithospheric structure and composition have direct relevance for our understanding of mineral prospectivity. Aspects of the lithosphere can be imaged using geophysical inversion or analysed from exhumed samples at the surface of the Earth, but it is a challenge to ensure consistency between competing models and datasets. The LitMod platform provides a probabilistic inversion framework that uses geology as the fabric to unify multiple geophysical techniques and incorporates a priori geochemical information. Here, we present results from the application of LitMod to the Australian continent. The rasters summarise the results and performance of a Markov-chain Monte Carlo sampling from the posterior model space. Release KY22 is developed using the primary-mode Rayleigh phase velocity grids of Yoshizawa (2014).

Geoscience Australia's Exploring for the Future program provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia's geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia's transition to a low emissions economy, strong resources and agriculture sectors, and economic opportunities and social benefits for Australia's regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government.

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Additional Info

Field Value
Title Thermo-chemical inversion of the Australian lithospheric mantle (KY22)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d5c9b965-1cce-468b-9e0a-339c7a794c97
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 19/06/2023
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        111.0,
        -46.0
      ],
      [
        155.0,
        -46.0
      ],
      [
        155.0,
        -9.0
      ],
      [
        111.0,
        -9.0
      ],
      [
        111.0,
        -46.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Thermo-chemical inversion of the Australian lithospheric mantle (KY22)". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/thermo-chemical-inversion-of-the-australian-lithospheric-mantle-ky22