East Antarctic Ice Sheet Evolution from Seismic Profiles in George V Basin

Late Quaternary data reconstructs ice sheet and ice shelf extent in the George V Basin, East Antarctica. The dataset is based on analyses of Chirp sub-bottom profiles, multi-channel seismic data, and sediment cores, distinguishing four glacial facies and two sediment drift facies. It was published by the Australian Ocean Data Network and last updated on 2026-06-27.

Use Cases

• Reconstructing past ice sheet grounding lines based on described glacial facies.
• Modeling sediment drift deposition and ice-keel turbation patterns based on facies descriptions.
• Correlating seismic stratigraphy with radiocarbon ages from sediment cores to date glacial events.
• Investigating the sensitivity of the East Antarctic fringe to sea-level rise during the Last Glacial Maximum.

Strengths

• Integrates multiple data sources: Chirp sub-bottom profiles, multi-channel seismic data, and sediment cores.
• Distinguishes four specific glacial facies and two sediment drift facies with detailed environmental interpretations.
• Provides ground-truthing via sediment cores with radiocarbon ages linking facies to the Last Glacial Maximum.

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 listed as HTML, which may require extraction or conversion for standard geospatial analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

Analysis of Chirp sub-bottom profiles integrated with multi-channel seismic data and sediment cores.

Time Range

Late Quaternary

Freshness

Last updated 2026-06-27 17:46:31.806352; freshness should be verified.

Geography

George V Basin, East Antarctica