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Tennant Creek-Mt Isa (TISA) Gravity Surveys, Tennant East (CSCBA 1VD grid)

Created 16/10/2025

Updated 16/10/2025

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Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Tennant Creek-Mt Isa (TISA) Gravity Surveys, Tennant East (CSCBA 1VD grid) is the first vertical derivative of the complete spherical cap Bouguer anomaly grid for the Tennant Creek-Mt Isa (TISA) Gravity Surveys, South West McArthur Barkley, Northern Territory, 2019. This gravity survey was acquired under the project No. 201901 for the geological survey of NT, QLD. The grid has a cell size of 0.00464 degrees (approximately 500m). A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. A total of 5855 gravity stations at a spacing between 2000m and 4000m were acquired to produce this grid.

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Additional Info

Field Value
Title Tennant Creek-Mt Isa (TISA) Gravity Surveys, Tennant East (CSCBA 1VD grid)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/327614a7-fed9-45f3-93f2-016f7ce07e0a
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 03/07/2019 - 21/08/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        134.9881,
        -20.1227
      ],
      [
        136.5366,
        -20.1227
      ],
      [
        136.5366,
        -19.0472
      ],
      [
        134.9881,
        -19.0472
      ],
      [
        134.9881,
        -20.1227
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Tennant Creek-Mt Isa (TISA) Gravity Surveys, Tennant East (CSCBA 1VD grid)". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/tennant-creek-mt-isa-tisa-gravity-surveys-tennant-east-cscba-1vd-grid