A single 2D seismic profile from the offshore Canning Basin, Western Australia, images a symmetrical structure interpreted as a possible complex impact crater. The Haines Structure spans approximately 2.5 km and is located within carbonate units of Eocene or Early Oligocene age. The dataset, hosted by the Australian Ocean Data Network, provides seismic character evidence for comparison with other interpreted impact structures on Australia's North West Shelf.
Use Cases
- Identify seismic signatures of impact craters based on the described symmetrical structure and centrally uplifted basal surface.
- Compare crater morphology with other Neogene impact structures on Australia's North West Shelf based on the described key elements.
- Model subsurface deformation in carbonate units based on the described highly deformed intervening package and sagging overlying horizon.
- Assess the absence of alternative formation processes like volcanic pipes based on the described lack of seismic links to deeper structures.
Strengths
- The seismic structure is described with specific dimensions (~2.5 km) and morphological features (centrally uplifted basal surface, depressed upper surface).
- The geological context is defined, placing the feature within carbonate units of Eocene or Early Oligocene age.
- The interpretation is supported by comparison with other known impact structures in the region.
Limitations
- The dataset is based on a single 2D seismic profile, limiting three-dimensional analysis.
- The structure has not been drilled, so distinguishing characteristics like shock metamorphism are unavailable.
- Column-level documentation is absent; field semantics must be inferred after download.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Seismic imaging from a 2D seismic profile, correlated to petroleum exploration wells.
- Time Range
- Eocene or Early Oligocene age.
- Freshness
- Last updated 2026-05-05 03:06:04.890768; freshness should be verified.
- Geography
- Offshore Canning Basin, Western Australia.