Geochemistry of Southern Australian Continental Margin Sediments

Bureau of Mineral Resources survey 67 collected gravity cores from offshore South Australia, Victoria, and West Tasmania. The dataset includes porewater metabolites, major and trace element abundances, radiochemical data, and paleoceanographic indicators from eight analyzed cores. These data form part of a larger geochemical database for the Australian continental margin.

Use Cases

• Assessing long-term environmental change from anthropogenic discharges based on geochemical sediment composition.
• Reconstructing Late Quaternary paleoceanography and natural climatic change using radiochemical species like authigenic uranium.
• Investigating geochemical processes for seafloor mineral formation, such as manganese crusts and phosphorites, based on pore water and sedimentary manganese data.
• Modeling organic carbon burial and recycling rates in marine sediments based on pore water metabolite and redox condition data.

Strengths

• Data includes multiple complementary geochemical analyses: porewater metabolites, major/trace elements, and radiochemistry.
• Samples were collected from a defined geographic region covering the outer-shelf, upper-slope, and lower-slope environments.
• Analysis was conducted both at sea and in a laboratory (Canberra), suggesting controlled processing.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is presented in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Bureau of Mineral Resources (BMR) survey 67, via the Australian Ocean Data Network.

Collection Method

Gravity core sampling and subsequent geochemical analysis at sea and in Canberra laboratories.

Freshness

Last updated 2026-06-05 07:35:46.870399; freshness should be verified.

Geography

Southern Australian Continental Margin, including offshore West Tasmania, South Australia, and Victoria.