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Preliminary report on a semidetailed gravity survey at the McKenzie Rive area, western Victoria

Created 17/10/2025

Updated 17/10/2025

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A semi—detailed gravity survey was carried out on an area south of Horsham covering 500 square miles on both sides of the Mackenzie River to obtain closer detail of Bouguer anomalies, established in Western Victoria between Hamilton and Warracknabeal during the 1958 reconnaissance gravity survey. The results of the survey confirm the existence of a major anomaly trend between Zumstein and Norton Creek. South of the Wimmera River a steepening in the gravity gradients occurs, which in the McKenzie Creek Quarry area is evidently related to outcrops of Palaeozoic Grampian Sandstone. The assumption of a vertical displacement of the Palaeozoic sarldstones along a fault with 2,400 feet throw in conjunction with a density contrast of 0,4 between the Grampian Sandstone and younger sediments east of this fault would sufficiently explain this gravity anomaly.

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Field Value
Title Preliminary report on a semidetailed gravity survey at the McKenzie Rive area, western Victoria
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/be9f1eab-3359-4be1-9de1-7cc87da76176
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 13/10/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        142.0,
        -37.0
      ],
      [
        142.5,
        -37.0
      ],
      [
        142.5,
        -36.5
      ],
      [
        142.0,
        -36.5
      ],
      [
        142.0,
        -37.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Preliminary report on a semidetailed gravity survey at the McKenzie Rive area, western Victoria". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/preliminary-report-on-a-semidetailed-gravity-survey-at-the-mckenzie-rive-area-western-victoria