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PANGAEA.
Data Publisher for Earth & Environmental Science

Berndt, Christian; Feseker, Tomas; Treude, Tina; Krastel, Sebastian; Liebetrau, Volker; Niemann, Helge; Bertics, Victoria J; Dumke, Ines; Dünnbier, Karolin; Ferre, Benedicte; Graves, Carolyn; Gross, Felix; Hissmann, Karen; Hühnerbach, Veit; Krause, Stefan; Lieser, Kathrin; Schauer, Jürgen; Steinle, Lea (2014): Isotope analysis and heat flow measurements of Maria S. Merian cruise MSM21/4 on the western Svalbard margin. PANGAEA, https://doi.org/10.1594/PANGAEA.824947, Supplement to: Berndt, C et al. (2014): Temporal constraints on hydrate-controlled methane seepage off Svalbard. Published Online January 2 2014, Science, https://doi.org/10.1126/science.1246298

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Abstract:
Methane hydrate is an ice-like substance that is stable at high-pressure and low temperature in continental margin sediments. Since the discovery of a large number of gas flares at the landward termination of the gas hydrate stability zone off Svalbard, there has been concern that warming bottom waters have started to dissociate large amounts of gas hydrate and that the resulting methane release may possibly accelerate global warming. Here, we can corroborate that hydrates play a role in the observed seepage of gas, but we present evidence that seepage off Svalbard has been ongoing for at least three thousand years and that seasonal fluctuations of 1-2°C in the bottom-water temperature cause periodic gas hydrate formation and dissociation, which focus seepage at the observed sites.
Coverage:
Median Latitude: 78.555684 * Median Longitude: 9.465464 * South-bound Latitude: 78.546500 * West-bound Longitude: 9.275670 * North-bound Latitude: 78.612830 * East-bound Longitude: 9.523170
Date/Time Start: 2012-08-18T19:48:00 * Date/Time End: 2012-09-04T04:45:00
Size:
29 datasets

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Datasets listed in this Collection

  1. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_550-2. https://doi.org/10.1594/PANGAEA.824918
  2. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_551-2. https://doi.org/10.1594/PANGAEA.824919
  3. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_552-2. https://doi.org/10.1594/PANGAEA.824920
  4. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_553-2. https://doi.org/10.1594/PANGAEA.824921
  5. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_554-2. https://doi.org/10.1594/PANGAEA.824922
  6. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_555-2. https://doi.org/10.1594/PANGAEA.824923
  7. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_556-2. https://doi.org/10.1594/PANGAEA.824924
  8. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_557-2. https://doi.org/10.1594/PANGAEA.824925
  9. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_558-2. https://doi.org/10.1594/PANGAEA.824926
  10. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_559-2. https://doi.org/10.1594/PANGAEA.824927
  11. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_589-1. https://doi.org/10.1594/PANGAEA.824928
  12. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_590-1. https://doi.org/10.1594/PANGAEA.824929
  13. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_591-1. https://doi.org/10.1594/PANGAEA.824930
  14. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_592-1. https://doi.org/10.1594/PANGAEA.824931
  15. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_593-1. https://doi.org/10.1594/PANGAEA.824932
  16. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_594-1. https://doi.org/10.1594/PANGAEA.824933
  17. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_595-1. https://doi.org/10.1594/PANGAEA.824934
  18. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_633-2. https://doi.org/10.1594/PANGAEA.824935
  19. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_634-2. https://doi.org/10.1594/PANGAEA.824936
  20. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_635-2. https://doi.org/10.1594/PANGAEA.824937
  21. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_636-2. https://doi.org/10.1594/PANGAEA.824938
  22. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_637-2. https://doi.org/10.1594/PANGAEA.824939
  23. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_638-2. https://doi.org/10.1594/PANGAEA.824940
  24. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_639-2. https://doi.org/10.1594/PANGAEA.824941
  25. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_640-2. https://doi.org/10.1594/PANGAEA.824942
  26. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_641-2. https://doi.org/10.1594/PANGAEA.824943
  27. Feseker, T (2014): In situ sediment temperature and sediment thermal conductivity measurements with heat flow probe MSM21/4_642-2. https://doi.org/10.1594/PANGAEA.824944
  28. Liebetrau, V; Krause, S (2014): U-Th isotope systematics and light stable isotope data of carbonate enriched sediments at MASOX and HyBIS sites (methane seepage off Svalbard) from JAGO dives during cruise Maria S. Merian MSM21/4. https://doi.org/10.1594/PANGAEA.825734
  29. Liebetrau, V; Krause, S (2014): U-Th isotope systematics and light stable isotope data of carbonate enriched sediments at MASOX site (methane seepage off Svalbard) at sediment core MSM21/4_657-1. https://doi.org/10.1594/PANGAEA.826110