Lord Howe Rise Marine Geophysical Data from 2016 RV Kairei Expedition

A 2016 marine geophysical survey acquired data along the Lord Howe Rise, a 600 km by 1,600 km continental ribbon east of Australia. The dataset includes a 680 km east-west seismic refraction profile, ~600 km of 2D seismic reflection data, and multibeam bathymetry, gravity, and magnetic data. It was collected by JAMSTEC and Geoscience Australia to study the region's crustal structure and breakup from Gondwana.

Use Cases

• Modeling crustal thickness and composition based on wide-angle seismic refraction and Moho reflection data.
• Mapping sedimentary basin geometry for IODP drilling site selection using high-resolution 2D seismic reflection data.
• Analyzing seafloor morphology and tectonic features using multibeam bathymetry data.
• Investigating the transition between oceanic and continental crust using combined seismic interpretation.

Strengths

• Includes a 680 km long seismic profile with data recorded at offsets up to 250 km.
• Combines multiple geophysical data types: seismic, bathymetry, gravity, and magnetics.
• Data supports an active IODP drilling proposal targeting rift basins and basement.

Limitations

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

Provenance

Source

Geoscience Australia Data

Collection Method

Acquired onboard the JAMSTEC vessel R/V Kairei in March–May 2016.

Time Range

2016

Freshness

Last updated 2026-04-30 12:31:05.847446; freshness should be verified.

Geography

Lord Howe Rise, east of Australia, in water depths up to 3,000 m.