Figure F9. Plot of Leg 204 acetate ion concentration vs. temperature. The lack of any general relationship such as an increase with depth as observed by Wellsbury et al. (1997) at Blake Ridge, offshore the southeastern Atlantic coast of the United States, suggests that acetogenesis by pyrolysis of organic matter during early diagenesis is not occurring here.

Figure F9. Plot of Leg 204 acetate ion concentration vs. temperature. The lack of any general relationship such as an increase with depth as observed by Wellsbury et al. (1997) at Blake Ridge, offshore the southeastern Atlantic coast of the United States, suggests that acetogenesis by pyrolysis of organic matter during early diagenesis is not occurring here.