Keystone Arctic paleoceanographic proxy association with putative methanotrophic bacteria

Combining the observations of thermal gradients at Vestnesa Ridge from MeBo70 drilling, heat probe deployments, gas compositions of void gas collected at the reference site

The thermogenic gas com- position together with cool water masses (3.3 C) at the Vestnesa Ridge create an abnormally shal- low THSZ, allowing the hydrate- rimmed gas bubbles

However, the impact of oceanic gas hydrate dissociation on the climate system is limited by the atmospheric transfer rate of methane, which is a function of timescales of

2) Where the GHSZ is thinned by a change in P-T conditions, but not removed entirely, and gas released from dissociation of hydrate at the base of the GHSZ migrates up slope

The hypothesis of an abiotic methane source was of interest to the Centre for Arctic Gas Hydrate, Environment and Climate (CAGE). Several studies have crossed the Svyatogor Ridge

The hypothesis of an abiotic methane source was of interest to the Centre for Arctic Gas Hydrate, Environment and Climate (CAGE). Several studies have crossed the Svyatogor Ridge

This observation again rules out warming-induced gas hydrate dissociation as the cause for the methane flux increase at the investigated coring sites, since our simulations show that

However, many such focused fluid flow pathways exist because hydrate efficiently traps gas leading to overpressure beneath the hydrate-bearing sediments and the ensuing formation of