Buried carbonate reefs are favoured hydrocarbon prospecting targets, mainly due to their
high porosity and potential for containing large quantities of petroleum. The question of the …

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 …

Hydrocarbon seeps and hydrothermal vents are now known to be common at continental
margins and oceanic spreading centers worldwide, exuding fluids rich in CH4 and H2S, and …

More than a dozen hydrocarbon seep‐carbonate occurrences in late Jurassic to late
Cretaceous forearc and accretionary prism strata, western California, accumulated in …

The relation of two well-known ancient carbonate deposits to hydrocarbon seepage was
confirmed by this study. Archaea are found to be associated with the formation of Oxfordian …

We propose that organic compounds found in a Miocene limestone from Marmorito
(Northern Italy) are source markers for organic matter present in ancient methane vent …

Groups of seabed mounds, suspected to be modern carbonate knolls or bioherms, have
been located on reflection seismic data in the Porcupine Basin off western Ireland and in the …

ABSTRACT A comprehensive approach using palaeontology, petrography, stable isotope
geochemistry and biomarker analyses was applied to the study of seven small methane …

Unit-pockmarks were recognized as more-or-less insignificant features on the seafloor in the
early 1980s. However, this investigation, at four different regions in Norwegian waters …

Methane-derived carbonate rocks (Lucina limestone and Marmorito limestone) crop out in
Monferrato (NW Italy) and represent one of the first described examples of rocks produced at …