Eastern Mediterranean Sea sediments from the Kazan Mud Volcano provide data on methane concentrations and anaerobic oxidation rates. The dataset includes pore-water sulfate profiles, depth distributions of biomarkers, and carbon isotopic compositions used to model methane flux and gas hydrate formation. It was published by the Australian Ocean Data Network and last updated in June 2026.
Use Cases
- Modeling methane flux and anaerobic oxidation rates based on pore-water sulfate profiles.
- Investigating the relationship between ascending methane flux and shallow gas hydrate formation.
- Quantifying the biomass of microbial populations oxidizing methane using isotopic mass balance.
- Studying fluid advection as a transport mechanism in surface sediments.
Strengths
- Depth-dependent methane concentrations and anaerobic oxidation of methane (AOM) rates are constrained by modeling.
- The dataset is consistent with a narrow depth interval of AOM, 14-18 cm below the sediment-water interface.
- Based on an isotopic mass balance, the microbial biomass represents about 20% of the 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 in the Eastern Mediterranean Sea.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Modeling of measured pore-water sulfate profiles and analysis of depth distributions of biomarkers and carbon isotopes.
- Freshness
- Last updated 2026-06-23 03:58:49.408771; freshness should be verified.
- Geography
- Kazan Mud Volcano, Eastern Mediterranean Sea