Lord Howe Rise Seismic Reflection and Bathymetry Data from 2016 Survey

Geoscience Australia Data presents multi-channel seismic reflection and bathymetry data from a 2016 marine geophysical survey. The dataset includes processed pre-stack depth-migrated images and interpretations of a regional ~900 km long profile, along with grids of pre-stack time-migrated lines covering two rift basins. The data was used to study the Late Cretaceous rifting of eastern Gondwana and the formation of the Lord Howe Rise continental ribbon.

Use Cases

• Modeling tectonic evolution based on interpreted rift basins and faulting patterns.
• Analyzing sedimentary basin stratigraphy based on described unconformities and sequences.
• Comparing contrasting rift basin evolution based on variations in normal faulting.
• Mapping subsurface geology based on seismic reflection images and bathymetry data.

Strengths

• Includes a regional seismic profile approximately 900 km long.
• Identifies rift basins with depths up to 3 km and a sedimentary basin up to ~3.5 km thick.
• Contains both pre-stack depth-migrated and time-migrated seismic data products.

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 survey line at 27.2°S.

Provenance

Source

Geoscience Australia Data

Collection Method

Collected on a multi-leg marine geophysical survey in 2016, with data processed into pre-stack depth-migrated and time-migrated images.

Time Range

Survey conducted in 2016; data pertains to geological formations from the Late Cretaceous.

Freshness

Last updated 2026-04-30 14:55:57.007230; freshness should be verified.

Geography

Offshore eastern Australia, focusing on the Lord Howe Rise, Dampier Ridge, Tasman Basin, and Middleton Basin along a profile at 27.2°S.