Late Permian Palynozones and CA-IDTIMS Dates from Bowen Basin

11 tuff and 18 sedimentary core samples from the Bowen Basin were analyzed for plant microfossils and dated using CA-IDTIMS techniques. The work was conducted by the Australian Ocean Data Network and last updated in May 2026. Quantitative analyses involved counts up to 100 specimens per sample, and results were used to assign numeric ages to palynostratigraphic units.

Use Cases

• Correlating palynofloras across regions based on dated spore-pollen zones.
• Refining the age estimates of stratigraphic units and events like the Micrhystridium evansii acme.
• Studying the temporal span of index species such as Dulhuntyispora parvithola.
• Analyzing the relationship between palynological zones and economic coal-bearing sequences.

Strengths

• Includes 29 total samples (11 tuff and 18 sedimentary core samples) from a specific well.
• Quantitative analyses performed with counts up to 100 specimens per sample.
• Combines palynological data with high-precision CA-IDTIMS dating.

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 data_gov_au, focusing on a single basin.

Provenance

Source

Australian Ocean Data Network

Collection Method

Palynological examination of strew-slides using light microscopy combined with CA-IDTIMS dating of tuff samples.

Time Range

Late Permian, spanning around five million years almost to the Permian-Triassic boundary.

Freshness

Last updated 2026-05-05 02:47:54.396671; freshness should be verified.

Geography

Bowen Basin, Australia, specifically samples from the APLNG Meeleebee 5 well spudded in the Surat Basin, Queensland.