Offshore permafrost decay andmassive seabedmethane escape in water depths > 20 m at the South Kara Sea shelf

@inproceedings{Portnov2013OffshorePD,
  title={Offshore permafrost decay andmassive seabedmethane escape in water depths > 20 m at the South Kara Sea shelf},
  author={Alexey Portnov and Andrew J.J. Smith and Juergen Mienert and Georgy Cherkashov and Pavel Rekant and Peter Semenov and Pavel Serov and Boris Vanshtein},
  year={2013}
}
[1] Since the Last Glacial Maximum (~19 ka), coastal inundation from sea-level rise has been thawing thick subsea permafrost across the Arctic. Although subsea permafrost has been mapped on several Arctic continental shelves, permafrost distribution in the South Kara Sea and the extent to which it is acting as an impermeable seal to seabed methane escape remains poorly understood. Here we use >1300 km of high-resolution seismic data to map hydroacoustic anomalies, interpreted to record seabed… CONTINUE READING