Australia Continental Margin Seabed Biogeochemistry from 2007-2014 Surveys

Australia's western, northern, and eastern continental margins were sampled at over 350 locations during federal government surveys from 2007 to 2014. The dataset includes parameters for organic matter source, concentration, and bioavailability, such as δ13C, δ15N, total organic carbon, and sediment oxygen demand. It was published by researchers from Geoscience Australia in 2017 to establish biogeochemical baselines and link seabed sediments to water column characteristics.

Use Cases

• Modeling organic carbon cycling in marine sediments based on total organic carbon and sediment metabolism measurements.
• Investigating sources of marine productivity based on stable isotope (δ13C, δ15N) and C:N ratio data.
• Assessing regional sediment health and nutrient availability based on chlorin indices and oxygen uptake rates.
• Correlating seabed biogeochemistry with satellite-derived water column productivity (MODIS) data mentioned in the description.

Strengths

• Samples from over 350 locations provide broad spatial coverage of Australia's continental margins.
• Analysis includes multiple parameters for organic matter source, concentration, and bioavailability, as detailed in the description.
• Data collection occurred over a defined period (2007-2014) during structured federal government surveys.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific modeling tasks.
• Freshness should be verified; the underlying data is from 2007-2014, though the record was updated in 2026.

Provenance

Source

Geoscience Australia Data

Collection Method

Seabed samples collected during federal government surveys.

Time Range

2007-2014

Freshness

Last updated 2026-04-30 14:41:30.434268; underlying data from 2007-2014.

Geography

Australia's western, northern, and eastern continental margins.