A 1965 marine survey by the Bureau of Mineral Resources tested a spark discharge seismic array and surface gravity meter simultaneously at speeds of 8-9 miles per hour. The survey revealed a large offshore sedimentary basin in the Joseph Bonaparte Gulf and Timor Sea containing over 10,000 feet of post-Permian sediments. Seismic reflections of good quality were recorded to 1.6 seconds.
Use Cases
- Model subsurface basin geometry based on described seismic reflection profiles.
- Correlate gravity anomalies with seismic-defined structures based on the survey's findings.
- Study the performance of historical spark-array seismic sources based on the survey's technical investigation.
- Map the offshore extension of the Bonaparte Gulf Basin based on the identified sedimentary thickness.
Strengths
- Simultaneous collection of gravity and seismic data at 8-9 mph boat speed.
- Seismic reflections recorded to 1.6 seconds with described good quality.
- Identified a sedimentary basin with over 10,000 feet of post-Permian sediments.
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/temporal bias inherent to data_gov_au.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Marine survey using a spark discharge seismic array and surface gravity meter.
- Time Range
- 1965
- Freshness
- Last updated 2026-05-14 09:43:36.564646; freshness should be verified.
- Geography
- Timor Sea and Joseph Bonaparte Gulf, northwest Australia.