Abstract The Vestnesa Ridge is a NW-SE trending,~ 100 km-long, 1–2 km-thick contourite
sediment section located in the Arctic Ocean, west of Svalbard, at 79° N. Pockmarks align …

Geological structure changes, including deformations and ruptures, developed in shallow
marine sediments are well recognized but were not systematically reviewed in previous …

Gas hydrates stored in the continental margins of the world's oceans represent the largest
global reservoirs of methane. Determining the source and history of methane from gas …

In 2014, the discovery of seafloor mounds leaking methane gas into the water column in the
northwestern Barents Sea became the first to document the existence of nonpermafrost …

Pockmarks, intriguing seafloor geological and geomorphological features, are commonly
observed in marginal basins with hydrocarbon potential. As a Cenozoic marginal sea, the …

Pockmarks are geohazards that can impact offshore developments, and an understanding of
their formation assists in determination of their physical characteristics and in the prediction …

Mega-pockmarks, which can reach a few kilometers in width and a few hundred meters in
depth, and associated fluid escape features in the Northern Zhongjiannan Basin, South …

The Patras Gulf Pockmark field is located in shallow waters offshore Patras City (Greece)
and is considered one of the most spectacular and best-documented fluid seepage activities …

Seabed methane seepage has gained attention from all over the world in recent years as an
important source of greenhouse gas emission, and gas hydrates are also regarded as a key …

Focused fluid flow through sub-seafloor pipes and chimneys, and their seafloor
manifestations as pockmarks, are ubiquitous. However, the dynamics of flow localization …