Geochemical Evidence For Ordovician Ocean-Floor Volcanism Near Wyalong

Geochemical data reveals Ordovician volcanic rocks in the Wyalong area formed in an oceanic environment, either at a mid-ocean ridge or back-arc basin. The dataset, managed by the Australian Ocean Data Network, links these Narragudgil Volcanics to the magnetic signature of the gold-hosting Gidginbung Volcanics. It was last updated in April 2026.

Use Cases

• Correlating geochemical signatures from the Narragudgil Volcanics to known mid-ocean ridge or back-arc basin settings.
• Analyzing the complex magnetic signature shared with the Gidginbung Volcanics to understand regional geology.
• Investigating the potential link between oceanic volcanic sequences and gold mineralization, as suggested by the Temora deposit.
• Re-evaluating regional stratigraphy by comparing rock affinities to the older Jindalee Group.

Strengths

• Data supports a specific geological interpretation for the formation environment of Ordovician volcanics.
• Links volcanic units to a known mineral deposit (Temora gold) via shared magnetic properties.

Limitations

• Unknown sample size and specific geochemical measurements (e.g., elemental concentrations).
• Data is presented in explanatory notes (PDF/HTML), limiting direct computational analysis.
• Geographic coverage is limited to the Wyalong area in New South Wales, Australia.

Provenance

Source

Australian Ocean Data Network.

Collection Method

Geochemical analysis and magnetic survey interpretation.

Time Range

Ordovician period.

Freshness

Updated in 2026.

Geography

Wyalong area, New South Wales, Australia.