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Showing 1 to 1 of 1 for “"thallium isotopes"”.
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A multiproxy investigation of oceanic redox conditions during the Cambrian SPICE event
… to these analyses, we apply a new proxy, thallium stable isotopes to this interval to assess potential global changes in deoxygenation across the event. These iron speciation analyses showed shallow environments deoxygenated coincident with the initiation of the SPICE and extinction …