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NTGS Daly Basin Gravity P201680 Complete Spherical Cap Bouguer Anomaly 267GU 1VD

Created 17/10/2025

Updated 17/10/2025

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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 NTGS Daly Basin Gravity PP201680 Complete Spherical Cap Bouguer Anomaly 267GU 1VD is the first vertical derivative of the complete spherical cap Bouguer anomaly grid for the NTGS Daly Basin Gravity Survey 2016 (P201680). This gravity survey was acquired under the project No. 201680 for the geological survey of NT. The grid has a cell size of 0.00732 degrees (approximately 800m). A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. A total of 2271 gravity stations at a spacing between 4000m and 1000m were acquired to produce this grid.

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Additional Info

Field Value
Title NTGS Daly Basin Gravity P201680 Complete Spherical Cap Bouguer Anomaly 267GU 1VD
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/c944af09-3a2d-454e-b499-617a3be9ada2
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 13/07/2016 - 06/08/2016
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        129.3139,
        -14.9138
      ],
      [
        132.9507,
        -14.9138
      ],
      [
        132.9507,
        -13.2381
      ],
      [
        129.3139,
        -13.2381
      ],
      [
        129.3139,
        -14.9138
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "NTGS Daly Basin Gravity P201680 Complete Spherical Cap Bouguer Anomaly 267GU 1VD". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/ntgs-daly-basin-gravity-p201680-complete-spherical-cap-bouguer-anomaly-267gu-1vd