Frontiers in Marine Science.
Akam, S.A., Coffin, R.B., Abdulla, H.A., Lyons, T.A.
Our data synthesis and broad interpretation emphasizes the importance of SMTZ as not only a methane sink but also an important diagenetic front for global DIC cycling. We further underscore the need to incorporate a DIC pump in methane-charged shallow marine sediments to models for coastal and geologic carbon cycling. This new understanding will promote more thorough and correct evaluation of methane contributions to coastal carbon budgets.