Buddycurrawa Volcanics: Geochronology and Hydrothermal Data, South Nicholson Region

Geoscience Australia research on the Buddycurrawa Volcanics sequence in the Northern Territory. The dataset includes geochronology data establishing a late Paleoproterozoic extrusion age, constrained by a maximum age of ca. 1662 Ma and a minimum age of ca. 1631 Ma. It also documents potassic alteration and evidence of a shallow-marine hydrothermal system, suggesting potential for base metal mineral systems.

Use Cases

• Correlating regional stratigraphy based on established late Paleoproterozoic age constraints.
• Modeling ancient hydrothermal systems based on documented 'white smoker' siliceous pipes.
• Assessing base metal mineral potential based on described potassic alteration and fluid flow events.
• Studying regional tectonic and magmatic events using precise U-Pb and Rb-Sr geochronology data.

Strengths

• Provides precise age constraints with specific maximum (ca. 1662 Ma) and minimum (ca. 1631 Ma) dates.
• Identifies specific geological features like 'white smoker' pipes and pervasive potassic alteration.
• Correlates findings with regional events in the Mount Isa Province, providing broader context.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is presented in PDF format, which may complicate direct computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Field research and laboratory analysis including SHRIMP U-Pb zircon and in situ laser Rb-Sr dating.

Time Range

Late Paleoproterozoic (ca. 1662–1631 Ma primary extrusion; alteration events ca. 1612–1323 Ma)

Freshness

Last updated 2026-04-30 13:12:12.549554; freshness should be verified.

Geography

Benmara region, northwestern Mount Drummond 1:250 000 map sheet, Northern Territory, Australia.