ODP Sites 1166 and 1167: Pliocene-Pleistocene Glacial Sediments from Prydz Bay, Antarctica

Lithostratigraphy, grain sizes, and down-hole logs from two Ocean Drilling Program sites on the Antarctic continental shelf and slope are analyzed to reconstruct glacial processes. The data from Sites 1166 and 1167 cover the upper Pliocene to lower Pleistocene, indicating repeated advances and retreats of the Lambert Glacier-Amery Ice Shelf system. The dataset is hosted by the Australian Ocean Data Network and was last updated in June 2026.

Use Cases

• Reconstructing past glacial advance/retreat cycles based on lithofacies and down-hole log fluctuations described in the summary.
• Modeling the development of trough-mouth fans based on the described interbedding of debrites, bottom-current deposits, and hemipelagic muds.
• Correlating Antarctic glacial drainage events with Southern Ocean ice-rafted debris records as suggested in the description.
• Analyzing grain size distributions to infer depositional environments and energy regimes for glaciomarine sediments.

Strengths

• Data originates from the scientifically curated Ocean Drilling Program (ODP).
• Analysis covers a specific and significant climatic transition from the upper Pliocene to lower Pleistocene.
• Includes multiple data types (lithostratigraphy, grain size, down-hole logs) for a multi-proxy approach.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality and completeness require manual inspection after download.

Provenance

Source

Australian Ocean Data Network, likely originating from Ocean Drilling Program (ODP) research.

Collection Method

Data gathered from core samples and down-hole logging at ODP Sites 1166 and 1167.

Time Range

Upper Pliocene to lower Pleistocene, with specific events noted around 0.78 million years ago.

Freshness

Last updated 2026-06-05 06:29:10.797812; freshness should be verified.

Geography

Eastern Prydz Bay, East Antarctica (Site 1166 on continental shelf, Site 1167 on upper slope).