Ocean Drilling Program data from Prydz Bay indicates a major compositional shift in glacial debris around 1.1 million years ago. The Australian Ocean Data Network hosts this record of the Lambert Glacier-Amery Ice Shelf system's evolution during the late Neogene. Stratigraphy shows most of the trough mouth fan was deposited prior to the Brunhes-Matuyama boundary 780,000 years ago.
Use Cases
- Modeling ice sheet dynamics based on described changes in flow patterns and erosion depth.
- Reconstructing paleoclimate conditions based on the timing of extreme ice advances and retreats.
- Analyzing sediment provenance shifts based on the described change from Lambert Graben-derived to basement-derived material.
- Studying the relationship between 100-ka climate cycles and ice discharge patterns described for the mid-Pleistocene transition.
Strengths
- Description provides specific temporal markers, including a compositional shift at ~1.1 Ma BP and the Brunhes-Matuyama boundary at 780 ka BP.
- Data is associated with the Ocean Drilling Program, a major international scientific endeavor.
- Spatial focus is clearly defined on the Prydz Bay region and the Lambert Glacier-Amery Ice Shelf system.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data format is HTML, which may require parsing to extract structured data.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Likely contains core sample data and analysis from Ocean Drilling Program expeditions.
- Time Range
- Late Neogene, with specific events from the Early Pliocene to mid-Pleistocene (~5.3 Ma to ~780 ka BP).
- Freshness
- Last updated 2026-06-04 07:21:16.517632; freshness should be verified.
- Geography
- Prydz Bay, East Antarctica, focusing on the Lambert Glacier-Amery Ice Shelf drainage system.