Glacial-Interglacial Paleoceanography from Australian Margin Sediments

Seven sediment cores from the Exmouth Plateau and Perth Basin and seven from the Ceduna Terrace provide evidence of glacial-interglacial changes. Data includes sediment accumulation rates, biogenic components like CaCO3 and organic carbon, benthic foraminiferal abundances, and stable isotope records since the Last Glacial Maximum (LGM). The dataset, from Geoscience Australia, suggests glacial productivity off Western Australia was 1.5-2 times higher than during the Holocene.

Use Cases

• Reconstructing glacial-interglacial productivity changes based on sediment accumulation rates and biogenic components.
• Analyzing intermediate and deep water chemistry history based on benthic foraminiferal stable isotope data.
• Comparing glacial carbon isotope profiles between ocean basins based on reconstructed LGM δ13C data.

Strengths

• Data from 14 distinct sediment cores across two key Australian margin regions.
• Quantifies specific glacial-Holocene contrasts, with LGM accumulation rates 1.5-2 times higher.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Analysis of sediment cores collected by the Australian Geological Survey Organisation.

Time Range

Since the Last Glacial Maximum (roughly 20,000 years ago) through the Holocene.

Freshness

Last updated 2026-03 25 18:10:32.616332; freshness should be verified.

Geography

Northwest Australian margin (Exmouth Plateau, Perth Basin) and Great Australian Bight (Ceduna Terrace).