Exmouth Gulf Marine Seismic Survey Maps from 1961

Marine reflection seismic survey data was collected in Exmouth Gulf and along the west coast of Western Australia in 1961. The survey was conducted by West Australian Petroleum Pty Limited using a two-boat operation with Lorac radio and sextant positioning. Processed data includes maps for Cretaceous horizons, pre-Cretaceous structure, water depth, and time intervals.

Use Cases

• Map subsurface structure by analyzing horizons 'A' and 'B' within the Cretaceous Korojon Calcarenite.
• Identify pre-Cretaceous fault trends and anticline axes using the constructed pre-Cretaceous structure maps.
• Analyze sediment thickness and depositional patterns from the time interval maps between Horizons 'A' and 'B'.
• Correlate offshore seismic data with onshore geology using established fault trends from the survey.
• Assess bathymetry and its relationship to underlying structure using the water depth maps.

Strengths

• Survey covers a significant coastal area from Frazer Island to Bernier Island along Western Australia.
• Data includes multiple constructed map types for different geological horizons and features.
• Original shot data was recorded on magnetic tapes and processed into variable area record sections.

Limitations

• Data is from a single 1961 survey, making it temporally stale for modern dynamic analysis.
• Specific technical details like row counts, column names, and precise data formats are unknown.
• Positioning methods (sextant, Lorac) are historical and less precise than modern GPS systems.

Provenance

Source

West Australian Petroleum Pty Limited, archived by the Australian Ocean Data Network.

Collection Method

Reconnaissance marine reflection seismic survey using a two-boat operation with magnetic tape recording.

Time Range

1961

Freshness

null

Geography

Exmouth Gulf and coastal waters from Frazer Island to Bernier Island, Western Australia.