Synchrotron XFM data for Barnes_14304 (March 2019) ...

The Ni-Cu-(PGE) deposits of the Norilsk area in Siberia are some of the world’s most valuable ores, and played a role in the greatest mass extinction in Earth history. A unique feature is the presence of low-S, high PGE mineralisation. Based on previous synchrotron experiments we have hypothesized t...

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Bibliographic Details
Main Author: Barnes, Stephen
Format: Dataset
Language:unknown
Published: CSIRO 2024
Subjects:
Inorganic geochemistry
Instruments and techniques
Regolith and landscape evolution
Resource geoscience
Biomineralisation
Earth system sciences
Synchrotrons
norilsk
Siberia
Online Access:https://dx.doi.org/10.25919/3v3q-p259
https://data.csiro.au/collection/csiro%3A61926v1
Description
Summary:The Ni-Cu-(PGE) deposits of the Norilsk area in Siberia are some of the world’s most valuable ores, and played a role in the greatest mass extinction in Earth history. A unique feature is the presence of low-S, high PGE mineralisation. Based on previous synchrotron experiments we have hypothesized that these unusual ores may have formed by “bubble-rafting” of sulfide droplets on gas bubbles, and that the high PGE/S could be related to loss of S to the vapour phase during degassing. We will test this model by imaging a remarkable new suite of samples from recent exploration drilling. ...

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