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A Diamond Carried Hydrated Iron From the Deep
A sealed inclusion contained goethite, hematite and magnetite, supporting a route for water into the lower mantle.
Summary
A sealed inclusion contained goethite, hematite and magnetite, supporting a route for water into the lower mantle.
Brazilian synchrotron measurements mapped a sealed inclusion in a super-deep diamond and identified goethite alongside iron oxides. The assemblage supports models in which protected goethite carries water hundreds of kilometers down before transforming; one diamond cannot determine the global water flux.
Why it matters
A sealed inclusion contained goethite, hematite and magnetite, supporting a route for water into the lower mantle.
Limits and context
- The assemblage supports models in which protected goethite carries water hundreds of kilometers down before transforming; one diamond cannot determine the global water flux.
Key claims
A sealed inclusion contained goethite, hematite and magnetite, supporting a route for water into the lower mantle.
Qualification: The assemblage supports models in which protected goethite carries water hundreds of kilometers down before transforming; one diamond cannot determine the global water flux.
Evidence: source-2026-08-02-017
Sources
- Scientific Reports: iron oxyhydroxide as a mantle water carrierScientific Reports · secondary reporting
Corrections
No corrections have been recorded for this story.