3D density and susceptibility distribution of the Wilkes Subglacial Basin and Transantarctic Mountains in East Antarctica.

  • Maximilian Lowe (Creator)
  • Tom Jordan (Creator)
  • Max Moorkamp (Creator)
  • Jörg Ebbing (Creator)
  • Christopher Green (Creator)
  • Mareen Loesing (Creator)
  • Robert Larter (Creator)



We present a 3D crustal model of density and susceptibility distribution in the Wilkes Subglacial Basin and the Transantarctic Mountains (TAM) based on joint inversion of airborne gravity and magnetic data. The applied 'variation of information' technique enforces a coupling between gravity and magnetic sources to give an enhanced inversion result. Our model reveals a large-scale body located in the interior of the Wilkes Subglacial Basin interpreted as a batholithic intrusive structure, as well as a linear dense body at the margin of the Terre Adelie Craton. We provide six netCDF files, which include the input gravity and magnetic data, the inverted gravity and magnetic data, and inverted crustal density and susceptibility distribution. Additionally, a simple jupyter notebook that loads and plots the provided data can be found here: https://doi.org/10.5281/zenodo.8304170 Funding for this research was provided by NERC through a SENSE CDT studentship (NE/T00939X/1)
Date made available17 Jul 2023
PublisherNERC EDS UK Polar Data Centre
Geographical coverageTransantarctic Mountains and Wilkes Subglacial Basin
Geospatial polygon-76.8, 172.0, -66.5, 131.0

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