Prydz Bay Glacial History from ODP Site 1167 Core Data

Prydz Channel Fan and the History of Extreme Ice Advances in Prydz Bay is a dataset from the Australian Ocean Data Network. It describes geological evidence from ODP Site 1167 on the continental slope, indicating the depositional history of a trough mouth fan built by the Lambert Glacier-Amery Ice Shelf system. The data suggests extreme ice advances to the shelf edge largely ceased around 780,000 years ago during the mid-Pleistocene.

Use Cases

• Modeling past ice sheet behavior based on debris flow deposit stratigraphy.
• Analyzing the timing of major glacial retreats based on mudstone horizon intervals.
• Investigating links between orbital cycles and ice sheet response based on described climate interactions.
• Reconstructing paleo-ice stream flow paths based on subglacial till deposition patterns.

Strengths

• Data is linked to a specific, well-documented scientific drilling site (ODP Site 1167).
• Provides a clear temporal anchor point with the Brunhes-Matuyama Boundary (780 ka).
• The description outlines a specific geological hypothesis for a major climatic transition.

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/temporal bias inherent to data_gov_au.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely derived from Ocean Drilling Program (ODP) core analysis and geological interpretation.

Time Range

Late Neogene to present, with a key transition identified around 780,000 years ago.

Freshness

Last updated 2026-04-16 09:28:31.761142; freshness should be verified.

Geography

Prydz Bay and the adjacent continental slope, East Antarctica.