Zhen Sun (Co-Chief Scientist, South China Sea Institute of Oceanology, China), Joann Stock (Co-Chief Scientist, California Institute of Technology, USA), Li Li (Organic Geochemist, Tongji University, China), and Chao Lei (Petrophysics [Physical Properties] Specialist, China University of Geosciences, China) listen as Xiao-Long Huang (Petrologist, Chinese Academy of Sciences, China) describes basement cores and how they might have formed. (Credit: William Crawford, IODP JRSO) [Photo ID: exp367_180]