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Forbes Geological Sheet 1:250 000 SI55-7 Explanatory Notes

Created 17/10/2025

Updated 17/10/2025

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The Forbes 1:250 000 map sheet area, which includes the towns of Forbes, Parkes, Grenfell, West Wyalong, and Condobolin, lies towards the western edge of the exposed Palaeozoic rocks of the Lachlan Fold Belt in New South Wales. Bedrock units range in age from Early Ordovician to late Tertiary (mid-Miocene). About 80% of the map sheet area is covered by Cainozoic units. The use of high quality geophysical datasets is invaluable in interpreting the geology.

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Additional Info

Field Value
Title Forbes Geological Sheet 1:250 000 SI55-7 Explanatory Notes
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/34eb7e18-277b-4982-a105-dccbef45619a
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.0,
        -34.0
      ],
      [
        148.5,
        -34.0
      ],
      [
        148.5,
        -33.0
      ],
      [
        147.0,
        -33.0
      ],
      [
        147.0,
        -34.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Forbes Geological Sheet 1:250 000 SI55-7 Explanatory Notes". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/forbes-geological-sheet-1-250-000-si55-7-explanatory-notes