Deep-Sea Sediment Analyses from Southwest Victoria and Tasmania Cores

Three research cruises between 1985 and 1988 collected 135 sediment cores off southwest Victoria and Tasmania. The record documents laboratory analyses including grainsize, calcium carbonate (CaCO3), and total organic carbon (TOC) performed by the Bureau of Mineral Resources (BMR) and AMDEL. The data aim to model sedimentation on the continental margin and interpret changes in the depositional environment over time.

Use Cases

• Modeling sedimentation history based on grainsize and CaCO3 variations down-core.
• Reconstructing paleoenvironmental conditions based on total organic carbon (TOC) content.
• Correlating sedimentological properties with seismic reflection data for stratigraphic interpretation.
• Analyzing regional depositional changes off the Australian continental margin.

Strengths

• Data originates from 135 distinct sediment cores collected on three dedicated research cruises.
• Analyses include multiple complementary measurements: grainsize, CaCO3, and TOC.
• Core lengths are documented, varying from 0.02 meters to 7.78 meters.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified; the last platform update is listed as 2026-04-20, but core collection ended in 1988.

Provenance

Source

Bureau of Mineral Resources (BMR), Division of Marine Geosciences and Petroleum Geology, with analyses also by AMDEL.

Collection Method

Laboratory analysis of sediment core samples taken at 20cm intervals from cores collected on research vessel cruises.

Time Range

Core collection occurred during cruises in 1985, 1987, and 1988.

Freshness

Last platform update 2026-04-20 03:38:27.505444; core data collection ended in 1988.

Geography

Ocean regions off southwest Victoria, western Tasmania, and the South Tasman Rise.