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Geology of Bougainville and Buka Islands, New Guinea

Created 17/10/2025

Updated 17/10/2025

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A geological survey of Bougainville and Buka, the northernmost islands of the Solomon group (Fig. 1) was carried out between April and July, 1965, by a Bureau of Mineral Resources party consisting of D. H. Blake, Y. Miezitis, D. D. Middleton, and F. S. Chong (Colombo Plan Fellow). The main object of the survey was to determine the geological setting of the gold and copper mineralization on Bougainville. The known gold and copper mineralization on Bougainville is associated with two porphyritic microdiorite bodies intruding agglomerate belonging to the Kieta Volcanics. The gold occurs in quartz stockworks within 'porphyry copper' deposits. Small quantities of alluvial and eluvial gold have also been found. Many of the beach sands around the coast of Bougainville contain concentrations of titaniferous magnetite.

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Field Value
Title Geology of Bougainville and Buka Islands, New Guinea
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/380dfa61-210f-45a9-ba58-a06f0ecd21f4
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        140.0,
        -12.0
      ],
      [
        156.0,
        -12.0
      ],
      [
        156.0,
        0.0
      ],
      [
        140.0,
        0.0
      ],
      [
        140.0,
        -12.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Geology of Bougainville and Buka Islands, New Guinea". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/geology-of-bougainville-and-buka-islands-new-guinea