Geological Structure and Stratigraphy of the Lander Trough, Northern Territory
Updated 28d ago
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Description
Recent geological mapping, drilling, and geophysical reassessment provide new details on the Lander Trough, a 300 km by 100 km crustal downwarp in Australia's Wiso Basin. The data distinguishes three rock sequences, including a thick (up to 800 m) Cambrian-Ordovician wedge that upgrades the area's petroleum potential. This dataset from the Australian Ocean Data Network, last updated in 2026, compiles findings on the trough's structure and its relation to the Alice Springs Orogeny.
Use Cases
Model subsurface stratigraphy based on described rock sequences (Proterozoic, Cambrian-Ordovician, ?Late Palaeozoic).
Assess petroleum potential based on comparisons to gas-bearing, structurally similar basins mentioned in the description.
Analyze tectonic structure based on the described overthrust fault system and its relation to the Alice Springs Orogeny.
Map geological boundaries and thickness variations based on the described wedge geometry of the Early Palaeozoic sequence.
Strengths
Includes recent geological mapping, stratigraphic drilling, and reassessed geophysical data.
Provides specific dimensional estimates for the trough (300 km long, 100 km wide) and rock sequence thicknesses (100-250 m, up to 800 m).
Links the local geology to regional tectonic events like the post-Devonian Alice Springs Orogeny.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data is provided as HTML and PDF documents, 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); recent study date is unspecified.
Freshness
Last updated 2026-06-27 19:24:35.085899; freshness should be verified.
Geography
The Lander Trough, southern Wiso Basin, Northern Territory, Australia.
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