Mory et al. (2017) published zircon U–Pb ages from middle Permian tuffs in Western Australia's Canning Basin. The data reveals an apparent conflict between CA-IDTIMS ages and established spore-pollen zonation, with a specific age of 267.04 ± 0.14 Ma reported from the Pittston SD-1 drillhole. The dataset is hosted by the Australian Ocean Data Network and was last updated in April 2026.
Use Cases
- Re-calibrating Permian spore-pollen zone ages based on high-precision zircon U–Pb dates.
- Analyzing facies-dependent biases in palynological assemblages based on the described non-marine vs. marginal-marine environments.
- Investigating local depositional influences on fossil records using the specific Canning Basin case study.
- Comparing radiometric ages from different basin locations based on the 350–400 km distance mentioned.
Strengths
- Includes a specific, high-precision zircon U–Pb age of 267.04 ± 0.14 Ma.
- Compares data from distinct facies (non-marine and marginal-marine) and locations (350–400 km apart).
- Provides context on coincidental Late Triassic basaltic sills (43.5 m and 20 m thick).
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 specific Canning Basin study.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Chemical abrasion-isotope dilution thermal ionisation mass spectrometry (CA-IDTIMS) dating of zircons from tuffs.
- Time Range
- Middle Permian (Roadian–Wordian), with specific ages around 267 Ma.
- Freshness
- Last updated 2026-04-16 14:00:51.086319; freshness should be verified.
- Geography
- Canning Basin, Western Australia, specifically the Pittston SD-1 drillhole and core holes 350–400 km northeast.