Late Neogene Ice Drainage Changes in Prydz Bay, East Antarctica

Late Neogene to mid-Pleistocene data documents ice flow and sediment deposition changes in the Lambert Glacier-Amery Ice Shelf system. The analysis is based on stratigraphy from an Ocean Drilling Program hole and debris flow deposits in a trough mouth fan. It was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Analyzing debris flow composition changes at ~1.1 Ma BP to infer shifts in erosion depth and ice volume.
• Using stratigraphy from Ocean Drilling Program data to correlate extreme ice advance events with the Brunhes-Matuyama Boundary (780 ka BP).
• Interpreting mudstone horizon intervals as indicators of ice retreat episodes from the continental shelf edge.
• Modeling the relationship between ice discharge dominance from Princess Elizabeth Land versus the Lambert Glacier since the mid-Pleistocene.
• Investigating the impact of 100 ka climatic cycles on ice dynamics and glacial-interglacial symmetry from mid-Pleistocene stratigraphy.

Strengths

• Provides age-controlled stratigraphy from an Ocean Drilling Program hole.
• Covers a long temporal sequence from the Late Neogene through the mid-Pleistocene.
• Analyzes specific compositional shifts in debris flows at ~1.1 Ma BP.

Limitations

• Sample data, row counts, and specific column structures are unavailable.
• Data is presented as a scientific publication in HTML format, not as a structured dataset.
• Geographic coverage is limited to the Prydz Bay region of East Antarctica.

Provenance

Source

Australian Ocean Data Network.

Collection Method

Analysis of Ocean Drilling Program stratigraphy and sedimentary deposits.

Time Range

Late Neogene to mid-Pleistocene (focused on Early Pliocene to ~780 ka BP).

Freshness

Last updated in April 2026.

Geography

Prydz Bay, East Antarctica.