Active present-day hydrocarbon seepage has been imaged for the first time in Australia on the tropical carbonate Yampi Shelf. The data includes gas plumes in the water column associated with seabed features like reflective blocks, pockmarks, and mounds, and links them to sub-surface seismic features. It was published by Geoscience Australia Data.
Use Cases
- Correlating gas plume activity with tidal cycles based on the described pressure relationship.
- Mapping hydrocarbon migration pathways based on the described control by reactivated basement fractures and dykes.
- Analyzing seabed feature preservation based on the described influence of bioclastic sediments and high-energy currents.
Strengths
- First documented imaging of active hydrocarbon seepage in Australia.
- Integrates multiple data types: water column gas plumes, seabed features, and sub-surface seismic data.
- Describes seepage activity in specific water depths of 50 and 90 meters.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Geophysical imaging and analysis.
- Freshness
- Last updated 2026-05-14 03:17:41.339286; freshness should be verified.
- Geography
- Yampi Shelf, Northwest Australia