Fig. 6: Section across the edge of the hydrate stability zone.
From: Gas hydrate dissociation linked to contemporary ocean warming in the southern hemisphere
Schematic section across the upper slope of the Rio Grande cone, showing the location of active gas flares, together with estimates of methane diffusive flux (mmol cm−2 yr−1). Blue arrows indicate possible methane migration pathways in the hydrate-free, dissociating hydrate, and stable hydrate zones. Note the diminishing diffusive methane flux and deepening of the sulfate−methane transition (SMT) downslope towards a thickening gas hydrate stability zone (GHSZ) indicated by the bottom simulating reflector (BSR).
