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Resistivity image beneath an area of active methane seeps in the west Svalbard continental slope ArchiMer
Goswami, Bedanta K.; Weitemeyer, Karen A.; Minshull, Timothy A.; Sinha, Martin C.; Westbrook, Graham; Marin-moreno, Hector.
The Arctic continental margin contains large amounts of methane in the form of methane hydrates. The west Svalbard continental slope is an area where active methane seeps have been reported near the landward limit of the hydrate stability zone. The presence of bottom simulating reflectors (BSR) on seismic reflection data in water depths greater than 600 m suggests the presence of free gas beneath gas hydrates in the area. Resistivity obtained from marine controlled source electromagnetic (CSEM) data provides a useful complement to seismic methods for detecting shallow hydrate and gas as they are more resistive than surrounding water saturated sediments. We acquired two CSEM lines in the west Svalbard continental slope, extending from the edge of the...
Tipo: Text Palavras-chave: Electrical properties; Marine electromagnetics; Gas and hydrate systems; Arctic region.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00350/46081/45740.pdf
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