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Report on gravity and magnetic test surveys near Wollongong, NSW

Created 17/10/2025

Updated 19/11/2025

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At the request of the Broken Hill Proprietary a geophysical test survey, employing gravity and magnetic methods, was carried out near Wollongong, N.S.W. by geophysicists of the Bureau. The area over which these tests were made is part of the Southern Coalfield of N.S.W. and plans are being made to develop a colliery in it. The subsurface geology is known in part from five drill holes, namely, Nebo No. 2, 5, and 6 and Wongawilli No. 7 and 8. Basalt sills of considerable thickness were encountered in Nebo No. 6 and Wongawilli No. 8. The proximity of sills to the coal seams has resulted, in parts of the Southern Coalfield, in the cindering of the coal, and for this reason it is a matter of considerable importance in planning a colliery to know the area occupied by the sills. The technical aspects of testing, results, and conclusions are discussed in this report.

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Field Value
Title Report on gravity and magnetic test surveys near Wollongong, NSW
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/a242fda5-bab8-4edf-ad40-a1483c064e1c
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 17/11/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
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    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Report on gravity and magnetic test surveys near Wollongong, NSW". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/report-on-gravity-and-magnetic-test-surveys-near-wollongong-nsw