Bivalve shell horizons in seafloor pockmarks of the last glacial-interglacial transition: a thousand years of methane emissions in the Arctic Ocean

We studied discrete bivalve shell horizons in two gravity cores from seafloor pockmarks on the Vestnesa Ridge (∼1200 m water depth) and western Svalbard (79°00′ N, 06°55′ W) to provide insight into the temporal and spatial dynamics of seabed methane seeps. The shell beds, dominated by two genera of...

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Bibliographic Details
Published in:	Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2015-12, Vol.16 (12), p.4108-4129
Main Authors:	Ambrose Jr, William G., Panieri, Giuliana, Schneider, Andrea, Plaza-Faverola, Andreia, Carroll, Michael L., Åström, Emmelie K. L., Locke V, William L., Carroll, JoLynn
Format:	Article
Language:	English
Subjects:	Bacteria Bivalvia Carbon isotopes carbonate geochemistry Carbonates Concretions Cores Deep sea Dynamics Emissions faulting Fluids Foraminifera Fossils Gas seepage Geophysics Gravity Interglacial periods Isotope composition Isotopes Marine Methane Methane emissions methane hydrate Mollusks Nutrition Ocean floor Oceans pockmarks Pyrite Sedimentary structures Sedimentation Sedimentation rates Seepage Seepages shell beds Shellfish Water depth
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