Horn Valley Siltstone: Sedimentology and Facies Data from Cored Wells

A reconnaissance study of the Horn Valley Siltstone formation in the Amadeus Basin, based on sedimentological and palaeontological data from five fully cored wells. The study subdivides the formation into ten informal members reflecting lithofacies variations in a shallow marine shelf environment. Organic geochemical data from two wells was used to confirm facies variations, with recorded TOC values of up to 6.30%.

Use Cases

• Classifying lithofacies variations based on sedimentological and palaeontological information.
• Modeling the relationship between oxygen concentration and organic matter preservation based on bioturbation and TOC data.
• Identifying key stratigraphic transitions based on changes in shale-to-carbonate ratios and organic richness.

Strengths

• Data is derived from five fully cored wells (Henbury #4, Henbury #6, Mt Liebig #2, Tempe Vale #1, Tent Hill #1), providing direct subsurface observations.
• Includes organic geochemical data with specific TOC measurements, such as values up to 6.30%.
• Formation is subdivided into ten informal members (HV1 to HV10) based on multiple defined criteria.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Exposure of the formation is described as 'usually poor', suggesting data is limited to specific cored locations.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of sedimentological, palaeontological, and organic geochemical data from cored wells.

Freshness

Last updated 2026-04-16 10:15:01.414305; freshness should be verified.

Geography

Amadeus Basin