Carbon Geochemistry of Cold Seeps: Methane Fluxes in Kazan Mud Volcano Sediments

Pore-water and solid-phase data from cold seep sediments in the Kazan Mud Volcano, Eastern Mediterranean Sea. The dataset includes depth-dependent methane concentrations, sulfate profiles, and biomarker distributions used to model anaerobic oxidation of methane (AOM) rates and gas hydrate formation. The data was published by Geoscience Australia Data and was last updated on 2026-04-20.

Use Cases

• Modeling methane flux and anaerobic oxidation rates based on pore-water sulfate and methane concentration profiles.
• Estimating gas hydrate formation potential based on predicted asymptotic methane concentrations near saturation.
• Analyzing microbial biomass contribution to total organic carbon using isotopic mass balance calculations.
• Studying the impact of fluid advection on methane transport and transformation in surface sediments.

Strengths

• Data includes depth-specific measurements of pore-water constituents (Na, B) and methane concentrations.
• Model results indicate a narrow, defined depth interval (14-18 cm) for anaerobic oxidation of methane.
• Isotopic mass balance provides a quantitative estimate (about 20%) of microbial biomass contribution to total organic carbon.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the single study site (Kazan Mud Volcano).

Provenance

Source

Geoscience Australia Data

Collection Method

Modeling of measured pore-water profiles from sediment samples.

Freshness

Last updated 2026-04-20 03:32:14.829179; freshness should be verified.

Geography

Kazan Mud Volcano, Eastern Mediterranean Sea