Australian Triassic Palynostratigraphy Recalibrated with CA-IDTIMS Dating

The Australian Ocean Data Network provides data recalibrating Australian Triassic palynostratigraphy to the international geologic timescale using high-resolution CA-IDTIMS dating. The dataset targets volcanic tuffs across Queensland, New South Wales, Tasmania, New Zealand, and Timor-Leste to provide numerical ages for palynozones. This recalibration impacts burial history models used in petroleum exploration.

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 chronostratigraphic understanding of Triassic petroleum systems based on high-precision dating of interbedded volcanic tuffs.

Strengths

• Data is tied to the international geologic timescale via high-precision CA-IDTIMS dating.
• Samples are sourced from multiple regions including Queensland, New South Wales, Tasmania, New Zealand, and Timor-Leste.
• The recalibration approach follows a previously applied method for middle and late Permian palynozones.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the sampled basins.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Triassic period.

Freshness

Last updated 2026-05-05 03:07:07.613438; freshness should be verified.

Geography

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