Knox Rift Thermochronology Analyses with Sample Locations

(U-Th)/He analyses on zircon and apatite grains provide data on the thermal history of the Knox Rift region. Samples were processed at the John de Laeter Centre, Curtin University, using conventional single-grain dating techniques. The dataset was last updated in July 2019.

Use Cases

• Model regional cooling histories by analyzing (U-Th)/He ages from zircon and apatite grains.
• Correlate thermal events with sample lithology and location data (Latitude, Longitude, Elevation).
• Assess data quality and reproducibility by examining processed analytical data for each sample.
• Identify source collections for samples to trace geological context and original sampling campaigns.

Strengths

• Includes machine-readable summary and detailed processed analytical data in separate worksheets.
• Provides sample locations with Latitude, Longitude, and Elevation in WGS84 coordinate system.
• Uses a defined missing data indicator (-9999.9) for clarity.

Limitations

• Dataset size, row count, and temporal coverage are unspecified.
• Data is stored in a proprietary Microsoft Excel format, not an open standard.
• Last update was in 2019, potentially limiting contemporary relevance.

Provenance

Source

John de Laeter Centre, Curtin University, via the Australian Antarctic Data Centre (AU_AADC).

Collection Method

Conventional single grain (U-Th)/He dating techniques applied to zircon and apatite grains.

Freshness

Last updated 2019-07-19.

Geography

Knox Rift region.