Buddycurrawa Volcanics: Late Paleoproterozoic Geochronology and Mineral Potential

Geochronology data for the Buddycurrawa Volcanics sequence in the South Nicholson region, Northern Territory. The dataset likely contains extrusion age constraints from SHRIMP U-Pb zircon and laser Rb-Sr dating on glauconite and microcline. It was published by Carson et al. in 2020 as part of the Exploring for the Future program.

Use Cases

• Correlating stratigraphic units based on the established late Paleoproterozoic extrusion age.
• Investigating regional shallow-marine hydrothermal systems based on the presence of 'white smoker' siliceous pipes.
• Analyzing the timing of potassic alteration and fluid flow events based on Rb-Sr dating of secondary microcline.
• Assessing base metal mineral system potential in late Paleoproterozoic successions.

Strengths

• Provides precise age constraints: a maximum extrusion age of ca. 1662 Ma and a minimum age of ca. 1631 Ma.
• Links the volcanic sequence to regional fluid flow and mineralization episodes in the Mount Isa Province.
• Identifies specific geological features like vertical siliceous pipes ('white smokers') indicative of hydrothermal systems.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The primary data format is PDF, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network via data.gov.au.

Collection Method

Likely contains geochronological analysis results (SHRIMP U-Pb, laser Rb-Sr) from scientific fieldwork.

Time Range

Late Paleoproterozoic, specifically ca. 1662–1631 Ma for extrusion, with alteration ages ca. 1612–1323 Ma.

Freshness

Last updated 2026-04-16 13:59:31.185195; freshness should be verified.

Geography

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