Deep-Sea Sediment Core Analyses from Southwest Victoria and Tasmania

Geoscience Australia Data documents sedimentological analyses from three research cruises conducted between 1985 and 1988 off southwest Victoria and Tasmania. The record includes grain size, calcium carbonate (CaCO3), and total organic carbon (TOC) analyses performed on samples taken from 43 to 54 cores per cruise. The work aimed to model sedimentation on the continental margin and interpret changes in the depositional environment over time.

Use Cases

• Modeling continental margin sedimentation based on grain size and compositional data.
• Analyzing paleoenvironmental changes from calcium carbonate and organic carbon content.
• Correlating sedimentological data with reflection seismic data to interpret older depositional sequences.

Strengths

• Data originates from three dedicated research cruises conducted over four years (1985-1988).
• Analyses include multiple sediment properties: grain size, 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 is available only in PDF and HTML formats, which may complicate direct machine processing.

Provenance

Source

Geoscience Australia Data, originating from the Bureau of Mineral Resources (BMR).

Collection Method

Laboratory analysis of samples taken from deep-sea sediment cores collected on research vessel cruises.

Time Range

Cores collected between 1985 and 1988.

Freshness

Last updated 2026-04-30 15:30:57.148112; freshness should be verified.

Geography

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