Blue Holes of Pompey Reefs in the Great Barrier Reef with Seismic and Depth Data

Two blue holes at Cockatoo and Molar Reefs, measuring 240-295 meters in diameter and 30-40 meters deep. The dataset from the Australian Ocean Data Network describes their morphology, sediment fans, biological associations, and includes seismic refraction studies showing a pre-Holocene surface 8.5-11 meters beneath the rims. It was last updated on 2026-04-28.

Use Cases

• Modeling doline collapse and sediment infill processes based on described slope angles and depth profiles.
• Analyzing biological zonation in submarine sinkholes based on distinct biological/sedimentary associations mentioned.
• Studying the impact of sea-level change on reef geomorphology based on evidence linking hole formation to low sea-level periods.
• Mapping bathymetric features in lagoonal reefs using the provided diameter and depth measurements.

Strengths

• Provides specific dimensional data: holes are 240-295 m in diameter and 30-40 m deep.
• Includes detailed morphological observations, such as inner slopes of 60-70° at Cockatoo and 45° at Molar.
• Contains results from seismic refraction studies, indicating a pre-Holocene surface at 8.5-11 m depth.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is provided in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains observational field data and results from seismic refraction studies.

Time Range

null

Freshness

Last updated 2026-04-28 13:19:04.220506; freshness should be verified.

Geography

Pompey hard line reefs (Cockatoo and Molar Reefs), Great Barrier Reef