Cadmium Isotope Fractionation During Iron Oxide Formation Experiments

Xinran Yan's dataset quantifies cadmium isotopic fractionation during ferrihydrite coprecipitation and its transformation to hematite. The data includes isotopic compositions (Δ¹¹⁴/¹¹⁰Cd) for aqueous, adsorbed, and structurally incorporated cadmium species across pH levels and Cd/Fe ratios. It was last updated on 2026-05-18.

Use Cases

• Modeling cadmium isotopic fractionation in aquatic systems based on pH-dependent adsorption and incorporation data.
• Calibrating paleoenvironmental proxies for ancient seawater composition based on whole-rock Cd isotopes in hematite.
• Investigating the influence of mineral transformation (ferrihydrite to hematite) on trace metal isotope signatures.

Strengths

• Dataset quantifies specific isotopic fractionation values, such as Δ¹¹⁴/¹¹⁰Cd_solid–solution of ‒0.25‰ ± 0.01‰.
• Experimental design includes controlled variables like pH (6, 7-8) and Cd/Fe ratios.
• Data is shared under a permissive CC-BY-4.0 license.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset's 292.6 KB size indicates a limited experimental scope.

Provenance

Source

Xinran Yan via figshare

Collection Method

Laboratory experiments on Cd–Fe coprecipitation and mineral transformation.

Freshness

Last updated 2026-05-18 09:43:51; freshness should be verified.