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

Recent geological mapping, stratigraphic drilling, and geophysical reassessment provide new information on the Lander Trough's structure. The trough is a 300 km by 100 km crustal downwarp containing three distinct rock sequences, with a thick Early Palaeozoic wedge up to 800 meters deep. This data was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Model subsurface basin geometry based on described rock sequences and thicknesses.
• Assess petroleum potential based on comparisons to similar basins where gas has been found.
• Study tectonic fault systems based on the described overthrust fault bounding the Arunta Block.
• Correlate regional stratigraphy using the described Cambrian, Ordovician, and Proterozoic sequences.

Strengths

• Describes a specific geological structure approximately 300 km long and 100 km wide.
• Provides quantified rock sequence thicknesses ranging from 100 to 800 meters.
• Integrates multiple data sources including recent mapping, drilling, and geophysical data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is presented in PDF/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 geological timeframes (Proterozoic to Late Palaeozoic).

Freshness

Last updated 2026-04-10 16:43:06.160506; freshness should be verified.

Geography

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