Harris Greenstone Domain: Geological Map of the Gawler Craton

Late Archean-Proterozoic geological features characterize the Harris Greenstone Domain, an arcuate tectonostratigraphic terrane in the centre of the Gawler Craton in Australia. The dataset is a georeferenced GeoPDF map depicting the domain's structure, including the Harris Greenstone Belt with its komatiite sequences and potential for Ni-Cu-PGE sulphide and lode-Au mineralising systems. The map's interpretation is based on aeromagnetic, gravity, and diamond drillcore data, with layers that can be toggled for customized analysis.

Use Cases

• Identifying prospective areas for Ni-Cu-PGE sulphide exploration based on the mapped Lake Harris Komatiite unit.
• Assessing structural controls on mineralization by analyzing the interpreted east-northeast trending magnetic features and shear zones.
• Correlating surface geology with geophysical signatures using the layered aeromagnetic and gravity data interpretations.
• Planning drill campaigns by understanding the distribution of greenstone sequences beneath thin Quaternary and Eocene cover.

Strengths

• Provides a detailed geological synthesis of a significant and mineral-prospective Australian terrane.
• Offers interactive, layered geospatial analysis through a GeoPDF format compatible with GIS tools.

Limitations

• Key metadata such as row count, specific columns, license, and author are unavailable across all sources.
• The map is largely interpretive, based on geophysical data and drillcore, as the belt is poorly exposed.
• Conflicting 'last updated' dates (2026-06-23 and 2026-04-10) suggest potential versioning or synchronization issues.

Provenance

Source

Australian Ocean Data Network (as listed on data.gov.au).

Collection Method

Interpretation of aeromagnetics, gravity, and diamond drillcore data.

Time Range

Late Archean to Proterozoic, with specific Sleafordian Orogeny event at ~2440 Ma.

Freshness

2026-06-23

Geography

Harris Greenstone Domain, Gawler Craton, South Australia, Australia.