Calcareous nannofossil assemblages from the Challenger No. 1 well offshore Perth Basin revise the age of the Challenger Formation type section. The data likely contains stratigraphic records from the Late Cretaceous through the Palaeogene, including Middle Eocene-Oligocene sediments. The dataset is hosted by the Australian Ocean Data Network and was last updated on 2026-04-16.
Use Cases
- Revising formation age assignments based on nannofossil biostratigraphy mentioned in the description
- Identifying major disconformities or condensed sections within the stratigraphic column
- Comparing offshore Palaeogene continuity with onshore marine units like the Kings Park Formation
- Correlating facies between Challenger and Porpoise Bay Formations based on age overlap evidence
Strengths
- The dataset provides a revised age for the Challenger Formation type section from Late Eocene to Middle Eocene-Oligocene
- It identifies three major disconformities at key geological boundaries
- The section is described as more complete than coeval sections at nearby Deep Sea Drilling Project sites
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 a single well study
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Biostratigraphic analysis of calcareous nannofossils from a core sample.
- Time Range
- Late Cretaceous through Palaeogene (Campanian through Oligocene)
- Freshness
- Last updated 2026-04-16 14:36:35.298712; freshness should be verified
- Geography
- Challenger No. 1 well, offshore Perth Basin, Western Australia