Quaternary Aminostratigraphy of Eolianite on Lord Howe Island, Southwest Pacific Ocean

Quaternary Aminostratigraphy of Eolianite on Lord Howe Island, Southwest Pacific Ocean is a dataset from the Australian Ocean Data Network. It contains amino acid racemization (AAR) dating data used to correlate disparate eolianite successions and establish a geochronological framework from the Holocene to the Middle Pleistocene. The data includes D/L ratios for amino acids from land snails and whole-rock samples, defining three aminozones and linking dune deposition to periods of high sea level.

Use Cases

• Correlating disparate eolianite successions based on amino acid racemization (AAR) data.
• Establishing a geochronological framework for coastal deposits based on defined aminozones.
• Assessing the reliability of AAR dating by analyzing stratigraphic order and consistency across multiple amino acids.
• Linking periods of large dune unit deposition to relatively high sea levels based on the AAR chronology.

Strengths

• Data reliability is assessed by analyzing multiple samples per unit and checking stratigraphic order.
• Includes D/L ratio measurements for a suite of seven amino acids, providing multi-proxy consistency checks.
• AAR data is supported by independent lithostratigraphic interpretations and broadly agrees with U/Th and TL ages.

Limitations

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

Provenance

Source

Australian Ocean Data Network

Collection Method

Amino acid racemization (AAR) dating of eolianite and land snail samples.

Time Range

Holocene to Middle Pleistocene

Freshness

Last updated 2026-04-10 17:09:34.031091; freshness should be verified.

Geography

Lord Howe Island, Southwest Pacific Ocean