Australian Triassic Palynostratigraphy Recalibrated with CA-IDTIMS Dating

Australian Ocean Data Network recalibrated Triassic palynostratigraphic biozones using high-precision CA-IDTIMS dating of volcanic tuffs. The dataset includes samples from Queensland, New South Wales, Tasmania, New Zealand, and Timor-Leste to facilitate correlation with the international geologic timescale. This recalibration impacts burial history models used in petroleum exploration across basins where these biozones are applied.

Use Cases

• Calibrating burial history models for petroleum exploration based on recalibrated biozone ages
• Correlating Australian palynological zones with the international geologic timescale based on CA-IDTIMS dates
• Revising numerical ages for Triassic biozone boundaries based on volcanic tuff samples

Strengths

• Dates are derived from high-precision CA-IDTIMS dating, which likely provides more accurate numerical ages than previous interpolation methods
• Samples are collected from multiple regions including Queensland, New South Wales, Tasmania, New Zealand, and Timor-Leste, suggesting broad geographic coverage

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

Australian Ocean Data Network

Collection Method

Chemical Abrasion-Isotope Dilution Thermal Ionisation Mass Spectrometry (CA-IDTIMS) dating of volcanic tuffs

Freshness

Last updated 2026-06-16 23:53:25.400006; freshness should be verified

Geography

Queensland, New South Wales, Tasmania, New Zealand, Timor-Leste