Shallow Inter-Reefal Structure of the Capricorn Group, Southern Great Barrier Reef

The Capricorn Reefs region of the southern Great Barrier Reef is covered by 276 km of continuous seismic reflection profiles. The data, provided by Geoscience Australia, identifies five subsurface reflectors, with three being widespread, interpreted as erosional surfaces. The dataset was last updated on 2026-03-25.

Use Cases

• Map subsurface erosional surfaces based on identified seismic reflectors A, C, and D.
• Analyze the spatial distribution of the Holocene transgression surface based on reflector C or the present sea bottom and reflector A.
• Model shallow inter-reefal geology in the area north and west of Heron Island where the deepest reflector D is present.
• Correlate seismic profiles to understand sediment sequences between identified reflectors.

Strengths

• Contains 276 km of continuous seismic reflection profiles.
• Identifies five distinct subsurface reflectors, with three being widespread.
• Spatially specific to the inter-reef areas of the Capricorn Reefs.

Limitations

• Row count and data scale are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The ages of the sediment sequences between reflectors are not known.

Provenance

Source

Geoscience Australia Data

Collection Method

Seismic reflection profiling.

Freshness

Last updated 2026-03-25 17:22:15.066049; freshness should be verified.

Geography

Inter-reef areas of the Capricorn Reefs, southern Great Barrier Reef, Australia.