Amino acid racemization (AAR) dating data for eolianite deposits on Lord Howe Island in the Southwest Pacific Ocean. The dataset provides a geochronological framework ranging from Holocene to Middle Pleistocene time, correlating disparate successions. It was published by the Australian Ocean Data Network and last updated in 2026.
Use Cases
- Correlating disparate eolianite successions based on amino acid racemization data.
- Establishing a geochronological framework for coastal deposits based on D/L ratios.
- Investigating links between dune deposition and periods of high sea level based on the described Aminozones.
- Cross-checking AAR data with independent lithostratigraphic interpretations and U/Th ages.
Strengths
- Data reliability is assessed by analyzing multiple samples from individual lithostratigraphic units.
- The stratigraphic order of D/L ratios and consistency across a suite of seven amino acids are checked.
- Three Aminozones (A, B, C) are defined with specific mean D/L ratios for land snails and whole-rock samples.
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 2026-05-05 01:42:09.795320; freshness should be verified.
- Geography
- Lord Howe Island, Southwest Pacific Ocean