Geological Structure and Rock Sequences of the Lander Trough, Northern Territory

Recent geological mapping, drilling, and geophysical reassessment provide information on the Lander Trough, a 300 km by 100 km crustal downwarp in the Wiso Basin. The data distinguishes three rock sequences, including a Cambrian-Ordovician wedge up to 800 meters thick. This work, sourced from the Australian Ocean Data Network, upgrades the area's petroleum potential by comparison to similar basins.

Use Cases

• Model basin structure and fault systems based on the described overthrust fault and downwarp geometry.
• Assess petroleum potential based on the described thick, marine Cambrian-Ordovician sediment sequence.
• Correlate regional geology based on comparisons to the Amadeus and Georgina Basins mentioned in the description.

Strengths

• Includes data from multiple sources: recent geological mapping, shallow stratigraphic drilling, and reassessed geophysical data.
• Provides specific dimensional estimates for the geological feature, such as a trough 300 km long and 100 km wide.
• Details rock sequence thicknesses, including a wedge thickening to about 800 meters.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network via data_gov_au.

Collection Method

Geological mapping, shallow stratigraphic drilling, and reassessment of geophysical data.

Time Range

Focuses on recent mapping and reassessment; includes Proterozoic to ?Late Palaeozoic rock sequences.

Freshness

Last updated 2026-04-28 13:47:55.672462; freshness should be verified.

Geography

The Lander Trough, southern Wiso Basin, Northern Territory, Australia.