Atmosphere oxygen cycling through the Proterozoic and Phanerozoic

Variations in atmosphere oxygen and ocean sulfate concentrations through time are regarded as important controls on the cycles of sediment-hosted and volcanic-hosted ore deposits. However, estimates of atmosphere oxygen in the Proterozoic have been frustrated by the lack of a direct measurement meth...

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Bibliographic Details
Published in:Mineralium deposita 2019-04, Vol.54 (4), p.485-506
Main Authors: Large, Ross R., Mukherjee, Indrani, Gregory, Dan, Steadman, Jeff, Corkrey, Ross, Danyushevsky, Leonid V.
Format: Article
Language:English
Subjects:
Atmosphere
Atmospheric models
Biodiversity
Biological evolution
Correlation
Cycles
Deposits
Earth and Environmental Science
Earth Sciences
Estimates
Evaporites
Fluid inclusions
Geology
Halite
Halites
Heavy metals
Invited Paper
Lead
Mass extinctions
Maxima
Measurement
Mineral deposits
Mineral Resources
Mineralogy
Modelling
Oxidoreductions
Oxygen
Oxygenation
Phanerozoic
Precambrian
Pyrite
Sediment deposits
Sedimentary basins
Sulfates
Trace elements
Variation
Zinc
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Summary:Variations in atmosphere oxygen and ocean sulfate concentrations through time are regarded as important controls on the cycles of sediment-hosted and volcanic-hosted ore deposits. However, estimates of atmosphere oxygen in the Proterozoic have been frustrated by the lack of a direct measurement method and conflicting evidence from various proposed geochemical proxies. Studies in the 1970s to 1990s suggested a relatively oxygenated atmosphere (> 3 wt% O 2 ) in the Proterozoic. However, since the late 1990s, new proxies and modelling have suggested very much lower levels of oxygen (
ISSN:0026-4598
1432-1866
DOI:10.1007/s00126-019-00873-9