Abstract:

We investigated the microbial mediated carbon and sulfur cycling in cold seep sediments of northern South China Sea. The dataset reports sediment geochemistry and rates of anaerobic oxidation of methane, methanogenesis, and sulfate reduction measured with radiotracers from three study sites.

Suggested Citation:

Samantha B. Joye, Guangchao Zhuang. 2018. Carbon and sulfur cycling rate measurements and geochemistry from three sites in the northern South China Sea. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N74B2ZR9

Purpose:

The purpose of these data is to determine carbon and sulfur geochemistry and microbial process rates in South China Sea cold seep sediments.

Data Parameters and Units:

Depth (cm); Sulfate (mmol/L); Methane (μmol/L); DIC (Dissolved inorganic carbon, mmol/L); δ13C-DIC (‰); H2 (nmol/L); DOC (dissolved organic carbon, μmol/L); Ammonium (μmol/L); Nitrite (μmol/L); Nitrate (μmol/L); Total dissoved phosphate (TDP) (μmol/L); Phosphate (μmol/L); Formate (μmol/L); Acetate (μmol/L); Propionate (μmol/L); Methanol (μmol/L); DIC turnover time (d); DIC methanogenesis rate (pmol cm-3 d-1); Acetate turnover time (d); Acetate methanogenesis rate (pmol cm-3 d-1); Methanol turnover time (d); Methanol methanogenesis rate (pmol cm-3 d-1); Methylamine turnover time (d); AOM rate (anaerobic oxidation of methane rate, pmol cm-3 d-1); Sulfate reduction (SR) rate (nmol cm-3 d-1); ND (not detected); All rate measurements are represented as the mean of triplicate incubations Sites: W22 (Shenhu area) ROV2 (Haima cold seep) ROV3 (Haima cold seep)

Provenance and Historical References:

Samples were collected in collaboration with Chinese researchers, institution including from Shanghai Jiao Tong University. Exact sampling sites are not provided at request of the Chinese government.

Individual Files: