Harris Greenstone Domain Geological Map In GeoPDF Format

GeoPDF maps of the Harris Greenstone Domain detail Australia's most eastern occurrence of komatiite rock, a key target for nickel-copper-PGE and gold exploration. The map layers, produced by the Australian Ocean Data Network, integrate interpreted aeromagnetic and gravity data with diamond drillcore information to visualize the subsurface structure beneath thin Quaternary cover. This dataset was last updated in April 2026.

Use Cases

• Identify potential Ni-Cu-PGE sulphide mineralizing systems by analyzing the spatial distribution of the Lake Harris Komatiite layer.
• Model the subsurface structure of the greenstone belt by toggling interpreted aeromagnetic and gravity data layers against the geological map.
• Plan exploration drilling campaigns by correlating the map's lithological zone boundaries, like the Yerda Shear Zone, with magnetic high features.

Strengths

• Map is georeferenced, allowing coordinate location and distance retrieval compatible with other geographic data.
• Data synthesis incorporates multiple interpretation sources: aeromagnetics, gravity, and diamond drillcore.

Limitations

• Underlying greenstone distribution is largely interpreted, not directly observed, due to poor surface exposure.
• The prospective sequence is covered by thin (<50 m) Quaternary sand and Eocene deposits, limiting direct surface mapping.
• Sample data and specific row/column counts for underlying vector or attribute data are unavailable.

Provenance

Source

Australian Ocean Data Network

Collection Method

Interpretation and synthesis of aeromagnetic, gravity, and diamond drillcore data into a geological map.

Time Range

Late Archean-Proterozoic geological features, with map production date in 2026.

Freshness

2026-04-04

Geography

Harris Greenstone Domain, central Gawler Craton, South Australia.