Late Permian Palynozones and Dated Tuffs from Bowen Basin

Australian Ocean Data Network provides a study of 11 tuff and 18 sedimentary core samples from the Bowen Basin. The work assigns numeric ages to palynostratigraphic zones like APP5, spanning approximately five million years near the Permian-Triassic boundary. The dataset was last updated in April 2026.

Use Cases

• Correlate palynozone APP5 with CA-IDTIMS tuff ages to refine its temporal span of ~5 million years.
• Identify the Microreticulatisporites bitriangularis Subzone and Micrhystridium evansii acme event for regional stratigraphic comparisons.
• Use presence data for index species like Dulhuntyispora parvithola and Triquitrites proratus to define zone boundaries in core samples.
• Date economic coal seams within the Bowen Basin by associating them with dated palynofloral assemblages.

Strengths

• Analysis includes 29 total samples (11 tuff, 18 sedimentary core).
• Quantitative palynological counts were performed with up to 100 specimens per sample.
• Study combines two dating methods: CA-IDTIMS and palynostratigraphy.

Limitations

• Sample size is limited to a single well (APLNG Meeleebee 5).
• Specific column names, row counts, and data formats are not detailed in the description.
• One potential APP6 zone assignment is tentative, based on a single species.

Provenance

Source

Australian Ocean Data Network

Collection Method

Palynological light microscope examination and CA-IDTIMS dating of core and tuff samples.

Time Range

Late Permian, specifically near the Permian-Triassic boundary.

Freshness

null

Geography

Bowen Basin, Queensland, Australia, from the APLNG Meeleebee 5 well.