Contribution of deep sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from ∆14C and δ13C isotopes

Dong Feng, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Jörn Peckmann, Universität Hamburg, Hamburg, Germany, Yongbo Peng, Louisiana State University, Department of Geology & Geophysics, Baton Rouge, LA, United States, Qianyong Liang, Guangzhou Marine Geological Survey, MLR Key Laboratory of Marine Mineral Resources, Guangzhou, China, Harry H Roberts, Louisiana State University, Baton Rouge, LA, United States and Duofu Chen, Shanghai Ocean University, College of Marine Sciences, Shanghai, China