Mud volcanism and diapirism have puzzled geoscientists for∼ 2 centuries. They have been
described onshore and offshore in many places on Earth, and although they occur in various …

This contribution is a synthesis of studies carried out since 2004 in the Makran accretionary
wedge exposed in SE Iran. These studies were intended to improve our understanding of …

Seabed fluid flow involves the flow of gases and liquids through the seabed. Such fluids
have been found to leak through the seabed into the marine environment in seas and …

Deep-sea chemosynthetic communities, including hydrothermal vents and cold seeps,
harbour hundreds of endemic species currently threatened by deep-sea mining and …

The most significant new contributions to the study of natural gas hydrates in the past
decade have come from findings of the Ocean Drilling Program (ODP), notably legs 112 …

Authigenic carbonates forming at an active methane-seep on the Makran accretionary prism
mainly consist of aragonite in the form of microcrystalline, cryptocrystalline, and botryoidal …

Evidence for twelve sites with gas bubble emissions causing hydroacoustic anomalies in 18
kHz echosounder records ('flares') was obtained at the convergent Makran continental …

Shortly after the discovery of chemosynthetic ecosystems at deep-sea hydrothermal vents,
similar ecosystems were found at cold seeps in the Gulf of Mexico. Over the past two …

This review covers the early diagenesis of the various types of deep-sea sediments. It uses
pore-water profiles as a sensitive tool to gain insight in diagenetic processes, to depict the …

Four lake-floor seeps have been studied in the gas-hydrate area in Lake Baikal's South
Basin by using side-scan sonar, detailed bathymetry, measurements of near-bottom water …