Antarctic Sediment Cores and Bathymetry from Prydz Bay and Mac.Robertson Shelf, 1993

Fifteen gravity cores and grab samples were collected from Prydz Bay and the Mac.Robertson Shelf during Voyage 7 of the 1992/93 Antarctic shipping season. The dataset, from Geoscience Australia, aims to elucidate sedimentation processes and study Quaternary environmental change. Bathymetry and 3.5kHz echo sounder data reveal features formed by erosion and deposition beneath the Amery Ice Shelf.

Use Cases

• Modeling past behavior of the Lambert Glacier-Amery Ice Shelf system based on sediment core records.
• Interpreting Late Quaternary environmental change based on sediment accumulations suitable for coring.
• Analyzing post-glaciation iceberg gouging patterns based on bathymetry and echo sounder data.
• Studying modern sediment types in Antarctic shelf environments based on grab sample collections.

Strengths

• Focuses on the Lambert Glacier-Amery Ice Shelf system, described as the largest ice stream draining the East Antarctic Ice Sheet.
• Includes data from two contrasting Antarctic regions: Prydz Bay and the Mac.Robertson Shelf.
• Contains multiple data types: sediment cores, grab samples, bathymetry, and 3.5kHz echo sounder records.

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 and temporal bias inherent to the specific 1993 research cruise.

Provenance

Source

Geoscience Australia Data

Collection Method

Marine sampling program (gravity cores, grab samples) and geophysical surveys (bathymetry, 3.5kHz echo sounder) conducted on R.V. Aurora Australis.

Time Range

January-March 1993

Freshness

Last updated 2026-04-20 03:03:54.884636; freshness should be verified.

Geography

Prydz Bay and Mac.Robertson Shelf, Antarctica; BANZARE Bank, Kerguelen Plateau