Australian Triassic Palynostratigraphy Recalibrated with CA-IDTIMS Dating

Australian Ocean Data Network provides a dataset for recalibrating Australian Triassic palynostratigraphy to the international geologic timescale. It uses high-precision Chemical Abrasion-Isotope Dilution Thermal Ionisation Mass Spectrometry (CA-IDTIMS) dating of volcanic tuffs from Queensland, New South Wales, Tasmania, New Zealand, and Timor-Leste. The dataset was last updated on 2026-06-05.

Use Cases

• Recalibrating burial history models for petroleum exploration based on revised biozone ages.
• Correlating Australian palynological biozones with the international geologic timescale based on CA-IDTIMS dates.
• Improving chronostratigraphic understanding of Triassic reservoirs in the Northern Carnarvon and Roebuck Basins.

Strengths

• Uses high-precision CA-IDTIMS dating, which is described as providing more accurate ages than traditional interpolation methods.
• Samples cover multiple Australian states (Queensland, New South Wales, Tasmania) and international locations (New Zealand, Timor-Leste).
• Last updated on 2026-06-05, suggesting recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is provided in PDF format, which may complicate automated extraction and analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Triassic period

Freshness

Last updated 2026-06-05 06:51:05.609155; freshness should be verified.

Geography

Queensland, New South Wales, Tasmania (Australia); New Zealand; Timor-Leste.