BMR Cruise 067: Geological and Heatflow Data from the Otway and Sorell Basins

130 sampling stations were occupied during a 29-day 1987 research cruise aboard the R.V. Rig Seismic. The cruise collected geological, geochemical, and heatflow data over the Otway and Sorell Basins off west Tasmania. Heatflow calculations from 20 stations and headspace gas analyses indicate widespread thermogenic hydrocarbons and mature source rocks.

Use Cases

• Modeling hydrocarbon maturation depths based on heatflow calculations from 20 stations.
• Mapping the distribution of thermogenic hydrocarbons based on headspace gas analyses of sediment cores.
• Developing regional sedimentation models based on a variety of recovered Quaternary sediments.
• Correlating rock sample ages with seismic profiles to understand the geological framework.

Strengths

• Data from 130 distinct sampling stations provides spatial coverage.
• Integrated data types include geological samples, heatflow measurements, and gas analyses.
• Samples were taken along seismic profiles for direct geological framework integration.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a single cruise in 1987; temporal coverage is limited.

Provenance

Source

Geoscience Australia Data

Collection Method

Sampling via dredges, corers, grabs, and a heatflow probe during a research cruise.

Time Range

1987

Freshness

Last updated 2026-04-30 14:18:48.235760; freshness should be verified.

Geography

Otway Basin and Sorell Basin of the west Tasmanian margin.