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Metal leaching and inorganic sulfate reduction in volcanic-hosted massive sulfide mineral systems: Evidence from the Paleoarchaean Panorama district, Western Australia

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Created 13/01/2025

Updated 13/01/2025

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Comprehensive studies of the well-preserved, paleo-Archean (3.6-3.2 Ga) Panorama volcanic-hosted massive sulfide district of Western Australia provide compelling evidence that metals were leached from the base of the volcanic pile and redeposited at its top in volcanic-hosted massive sulfide deposits. This leaching provided more than enough metal to form known deposits, implying that direct magmatic input of metal is not required. Sulfur depletion from the base of the volcanic pile was associated with an increase in Fe2O3/FeO and hematitic alteration. These data, combined with sulfur isotope data, indicate that seawater sulfate reduction was facilitated by the oxidation of rock FeO to hematite at high temperature in the H2S stability field. This is the first time that seawater sulfate reduction has been demonstrated regionally in an ancient volcanic-hosted massive sulfide mineral system. The data presented here require paleo-Archean seawater to be sulfate bearing.

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Title Metal leaching and inorganic sulfate reduction in volcanic-hosted massive sulfide mineral systems: Evidence from the Paleoarchaean Panorama district, Western Australia
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/bc6f14f3-6449-4d92-a1f8-a4232c8f8ba5
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[116.1, -23.0], [123.0, -23.0], [123.0, -20.0], [116.1, -20.0], [116.1, -23.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Metal leaching and inorganic sulfate reduction in volcanic-hosted massive sulfide mineral systems: Evidence from the Paleoarchaean Panorama district, Western Australia". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/metal-leaching-and-inorganic-sulfate-reduction-in-volcanic-hosted-massive-sulfide-mineral-syste

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