Quaternary Calcarenite Stratigraphy of Lord Howe Island with Chronology

The Quaternary Calcarenite Stratigraphy dataset from the Australian Ocean Data Network describes carbonate rock formations on Lord Howe Island. It contains a record of up to 7 discrete depositional phases, with a chronology constructed using U/Th, TL, AMS 14C, and amino acid racemization dating methods. The data indicate deposition occurred during Middle Pleistocene and Late Pleistocene oxygen isotope stages.

Use Cases

• Modeling past coastal dune formation and sediment transport based on described eolianite and beach calcarenite units.
• Reconstructing Quaternary sea-level and climate history based on the oxygen isotope stage chronology.
• Analyzing diagenetic processes in carbonate rocks based on described cement types like sparite and micrite.
• Studying karst landscape evolution based on described features like dolines, caves, and speleothems.

Strengths

• Chronology constructed from multiple dating methods: U/Th, TL, AMS 14C, and amino acid racemization.
• Stratigraphic record captures up to 7 discrete phases of deposition.
• Data provides temporal context linking formations to specific oxygen isotope stages (e.g., OIS 7, 5e, 5a).

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 the single-island study location.

Provenance

Source

Australian Ocean Data Network

Collection Method

Field stratigraphy and laboratory dating of rock samples.

Time Range

Middle Pleistocene to Late Pleistocene.

Freshness

Last updated 2026-06 27 17:35:07.864182; freshness should be verified.

Geography

Lord Howe Island, southwestern Pacific Ocean.