NESP TWQ Project 1.3 - A validation of coral geochemical records to reconstruct suspended

A 2015-2016 project from the Australian Ocean Data Network validates coral geochemical records as proxies for suspended sediment loads. The project compares trace element ratios from 2012 coral cores with measured sediment and nutrient loads from the Burdekin River. This work addresses a lack of replication for records widely cited as evidence of increased sediment delivery since the 1850s.

Use Cases

• Validate coral geochemical proxies for sediment loads based on comparisons with river monitoring data.
• Reconstruct historical suspended sediment delivery to the Great Barrier Reef lagoon based on coral core analysis.
• Assess changes in particulate nutrient loads to reef ecosystems based on trace element ratios in coral skeletons.

Strengths

• Project focuses on validating a widely cited but under-replicated method for historical sediment reconstruction.
• Analysis compares coral cores from 2012 with contemporary measured river load data for a specific validation period.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on the central Great Barrier Reef and Burdekin River.

Provenance

Source

Australian Ocean Data Network

Collection Method

Geochemical analysis of coral cores collected in 2012, compared to measured river load data.

Time Range

Cores collected in 2012; project period 2015-2016; historical comparisons reference periods since the 1850s.

Freshness

Last updated 2026-07-14 09:02:31.951747; freshness should be verified.

Geography

Central Great Barrier Reef, Burdekin River catchment.