Beryllium Isotope Measurements from Antarctic Ice Shelf and Sub-Ice Shelf Sediments

Beryllium isotope measurements from sediment samples collected in Prydz Bay, one of Antarctica's largest ice drainage systems. The dataset, published in Earth and Planetary Science Letters in 2019, includes samples from open marine, sub-ice shelf, and subglacial depositional environments. It demonstrates that 10Be concentrations reflect sub-ice shelf circulation patterns, while HCl-extractable 10Be/9Be ratios can discriminate between open marine and sub-ice shelf settings.

Use Cases

• Tracing sediment sources and transport pathways in glacio-marine environments based on beryllium isotope signatures.
• Modeling sub-ice shelf and bottom current circulation strength based on 10Be concentration patterns.
• Discriminating between open marine and sub-ice shelf depositional environments based on HCl-extractable 10Be/9Be ratios.
• Reconstructing paleo-ice sheet margin conditions and circulation using beryllium isotope tracers.

Strengths

• Data is derived from a published, peer-reviewed study in Earth and Planetary Science Letters (Volume 505, 2019).
• Samples cover a range of distinct Antarctic depositional environments: open marine, sub-ice shelf, and subglacial.
• Focus on Prydz Bay provides a case study for one of Antarctica's largest ice drainage systems.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Geoscience Australia Data

Collection Method

Field measurements of beryllium isotopes in sediment samples.

Time Range

Sample collection date is not specified; associated research article published in 2019.

Freshness

Last updated 2026-05-14 08:54:04.054018; freshness should be verified.

Geography

Prydz Bay, Antarctica.