NSW Geoscience Metadata
NSW Geoscience Metadata (Mining Exploration and Geoscience | Regional NSW)
Mining Exploration and Geoscience | Regional NSW
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Depth to the Mohorovičić discontinuity (Moho) interpreted and modelled by Geognostics with support from government and industry. The Moho surface is the boundary between the Earth's crust and the upper mantle. The depth to moho is a representation of the thickness of the Earth's Crust. This moho surface is derived from seismic, gravity and other geophysical datasets.
This layer shows the boundary of the AusLAMP NSW survey and the station locations. Data were acquired by a collaboration between GSNSW and Geoscience Australia. Data were used to create a 3D resistivity model of the crust from 10 km depth to 200 km depth.
Pseudocolour image of the concentration of uranium in parts per million within in the upper 20 centimetres of the ground. Cooler colours indicate lower abundances of uranium and warmer colours represent higher abundances. Variations in uranium values are caused by varied mineral compositions in host rocks and soils. This statewide image was generated by merging many individual airborne radiometric surveys.
NSW Uranium Squared divided by Thorium (U2/Th)
Pseudocolour image of the ratio between uranium and thorium within the upper 20 centimetres of the ground. Cooler colours indicate lower abundances of uranium relative to thorium and warmer colours represent the opposite. Variations in U2/Th ratio are caused varied mineral compositions in host rocks and soils. This statewide image was generated by merging many individual airborne radiometric surveys.
This layer shows a depth slice from a 3D resistivity model of the crust derived from an inversion of the AusLAMP NSW long period MT data.
Time-series records of the magnetic and electric fields measured at the AusLAMP MT sites were QA\QCed, pre-processed and transformed into the frequency domain (Kyi et al, 2020). Data were then inverted to a 3D resistivity voxet model of the crust using the ModEM 3D code on the National Computing Infrastructure supercomputer (Kirkby et al, submitted). The 3D resistivity model was sliced to display the voxet cells at 10 km depth in plan-view. The cells were coloured according to their resistivity value to create the image. Kirkby, A. L., Musgrave, R., Czarnota, K., Doublier, M., Kyi, D., Duan, J. and Cayley, R., (submitted). The resistivity structure of the Tasmanides, southeastern Australia, from AusLAMP magnetotelluric data and implications for tectonic evolution. Submitted to Tectonophysics. Kyi, D., Duan, J., Kirkby, A. and Stolz, N., 2020. Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP): New South Wales; Data Release Report (Phase One). Record 2020/11 Geoscience Australia, Canberra.
Download Uranium ppm 2025 ERS file (4.1GB)
Download Uranium Squared divided by Thorium (U2/Th) 2025 ERS file (4GB)
Download Uranium squared divided by Thorium (U2/Th) 2025 TIF file