Evidence for Exhalative Origin of Cobar District Mineral Deposits, New South Wales

Evidence is presented for mineralogical and chemical zoning in seven deposits of the Cobar-Nymagee area. The deposits are contained in distal turbidite facies of the Devonian Cobar Supergroup, deposited in a meridional trough. The dataset is provided by the Australian Ocean Data Network and was last updated on 2026-04-28.

Use Cases

• Modeling mineral deposit genesis based on described zoning patterns (siliceous chalcopyrite-pyrrhotite vs. massive pyrite-sphalerite-galena).
• Analyzing the relationship between basin tectonics (rifting, growth faults) and mineralization as described for the Cobar Trough.
• Identifying mineralized horizons and structural controls (e.g., tight syncline) in mining districts using the syn-sedimentary exhalative concept.

Strengths

• Analysis covers seven distinct mineral deposits in the Cobar-Nymagee area, providing a regional perspective.
• Description includes specific geological features such as zoning perpendicular to bedding and contact relationships with host rocks.
• Provides a temporal and structural context, linking deposits to the Devonian Cobar Supergroup and post-ore deformation.

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/HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network via data_gov_au

Collection Method

Likely a geological research paper or report analyzing field and laboratory data.

Time Range

Geological period: Devonian.

Freshness

Last updated 2026-04-28 15:26:05.514717; freshness should be verified.

Geography

Cobar-Nymagee area, New South Wales, Australia.