Early Holocene Coral Reef Growth and Submergence in the Gulf of Carpentaria, Australia

Seven newly discovered coral reefs in the Gulf of Carpentaria represent the oldest known reefs in Australia, with growth commencing around 10.5 thousand years ago. Reef growth persisted for approximately 2,000 years but ceased by about 8.0 thousand years BP, as growth rates of 0.95 to 4 meters per millennium failed to keep pace with rapid sea-level rise. This dataset from the Australian Ocean Data Network, last updated in 2026, includes multibeam sonar mapping, drill cores, and underwater video data confirming the reef province.

Use Cases

• Modeling reef growth rates against sea-level rise based on the reported 0.95 to 4 m/kyr measurements.
• Analyzing the timing and duration of reef development during the Early Holocene based on the ~10.5 to ~8.0 kyr BP timeframe.
• Mapping submerged reef features and Pleistocene limestone platforms based on multibeam sonar and core sample data.
• Studying 'give-up' reef growth histories in response to rapid environmental change as described.

Strengths

• Includes data from multiple sources: multibeam sonar mapping, drill cores, and underwater video.
• Provides specific temporal data: reef growth commenced ~10.5 kyr BP and ceased ~8.0 kyr BP.
• Contains quantified growth rate measurements ranging from 0.95 to 4 meters per millennium.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description indicates the reefs are mostly relict features, limiting data on contemporary active growth.

Provenance

Source

Australian Ocean Data Network

Collection Method

Multibeam sonar mapping, drill cores, underwater video data, and Uranium/Thorium (U/Th) dating.

Time Range

Early Holocene, approximately 10.5 to 8.0 thousand years before present.

Freshness

Last updated 2026-04-28 12:53:03.211348; freshness should be verified.

Geography

Gulf of Carpentaria, Australia.