Isotopic Atlas of Australia: National Geochronology and Isotope Coverages

Australia's national-scale isotopic atlas, expanded by Geoscience Australia, includes over 7500 geological ages and tripled data points for Sm-Nd isotopes. The data, presented at the Australian Earth Sciences Convention in 2026, covers diverse sample media like whole-rocks, floodplain sediments, and K-feldspars. It is designed to illustrate continental-scale geological patterns and support integration with other national geoscience datasets.

Use Cases

• Modeling crustal growth and geological processes based on national Sm-Nd and Pb isotope coverages.
• Sourcing studies in archaeology and forensics using the national bio-available Sr isotope dataset.
• Visualizing the temporal animation of magmatic and mineralisation events across the Australian continent.
• Integrating age and isotopic patterns with other national geoscience datasets for cross-disciplinary analysis.

Strengths

• Contains over 7500 geological ages, providing a first-pass national geochronology data coverage.
• National Sm-Nd isotope coverage has approximately triple the data points relative to its 2013 edition.
• Includes diverse sample media such as whole-rocks, K-feldspars, and floodplain sediments, expanding potential applications.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified as the last update was 2026-05-26.

Provenance

Source

Geoscience Australia

Collection Method

Compiled and expanded as part of the Isotopic Atlas of Australia activities, likely from scientific measurements and state compilations.

Freshness

Last updated 2026-05-26.

Geography

Australia