Harris Greenstone Belt: Archean-Proterozoic Terrane GIS

Harris Greenstone Domain (HGD) is a GIS dataset depicting a late Archean-Proterozoic tectonostratigraphic terrane in the Gawler Craton of South Australia. The data characterizes the Harris Greenstone Belt, including komatiite, basalt, and banded iron formation, with structure interpreted from aeromagnetic and gravity surveys. It highlights the Lake Harris Komatiite for its potential nickel-copper-PGE and gold mineralizing systems.

Use Cases

• [Regional geological mapping] based on interpreted lithological units and structural boundaries like the Yerda Shear Zone.
• [Mineral prospectivity analysis] based on the distribution of komatiite sequences associated with Ni-Cu-PGE sulphide potential.
• [Geophysical interpretation] based on the characterization of east-northeast trending magnetic high and low features.
• [Stratigraphic and tectonic studies] based on the sequence of Archean and Proterozoic volcanic and sedimentary rock formations.

Strengths

• Provides detailed lithological and structural interpretation for a poorly exposed geological terrane.
• Integrates multiple data sources, explicitly including aeromagnetics, gravity, and diamond drillcore.
• Includes specific geological time references, such as the Sleafordian Orogeny at ~2440 Ma.

Limitations

• Sparse metadata: specific column names, row counts, file size, license, and author information are not provided.
• Data is largely interpretive, based on geophysical surveys and limited drillcore, rather than extensive surface exposure.
• Conflicting 'last updated' dates (2026-04-20 and 2026-03-07) suggest potential metadata inconsistency.

Provenance

Source

Geoscience Australia Data

Collection Method

Interpretation of aeromagnetic and gravity data, integrated with diamond drillcore information.

Time Range

Late Archean to Proterozoic geological time, with a specific metamorphic event at ~2440 Ma.

Freshness

Last updated on 2026-04-20 according to the most reliable source.

Geography

Harris Greenstone Domain in the centre of the Gawler Craton, South Australia, Australia.