Crustal Transect Seismic Data from the Vulcan Sub-basin, Northern Australia

Wide-angle seismic, gravity, and marine reflection data define crustal architecture between the Australian craton and the Timor Trough. The dataset, sourced from the Australian Ocean Data Network, was last updated in April 2026. It provides measurements of crustal thickness, P-wave velocities, and subsurface reflections along a specific transect.

Use Cases

• Model crustal thinning from 35 km to 26 km across the continental margin based on described thickness measurements.
• Analyze basin formation processes based on elevated P-wave velocities (7 km/s) suggesting mafic intrusions.
• Interpret subsurface structures based on strong near-vertical-incidence reflections at approximately 13 km depth.
• Study upper mantle composition based on wide-angle reflections from 38-45 km depth indicating heterogeneities.

Strengths

• Includes multiple geophysical data types: wide-angle seismic, gravity, and deep marine reflection profiling.
• Provides specific crustal thickness measurements (35 km, 26 km) and velocity data (7 km/s).
• Defines a transect across a major tectonic boundary between the Australian and SE Asian plates.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific Vulcan transect region.

Provenance

Source

Australian Ocean Data Network

Collection Method

Collected via ocean bottom seismographs, gravity surveys, and marine reflection profiling.

Time Range

null

Freshness

Last updated 2026-04-10 20:08:41.442563; freshness should be verified.

Geography

Transect between Precambrian Australia and the Timor Trough across the Vulcan Sub-basin, northern Australia.