Advanced search
1 file | 569.52 KB

Model of formation of double structure gas hydrates in Lake Baikal based on isotopic data

Author
Organization
Abstract
We measured the isotopic compositions of methane (C1) and ethane (C2) of hydrate-bound gas and of dissolved gas in pore water retrieved from bottom sediments in Lake Baikal. Both structure I (sI:3%C2) and II (sII:14%C2) gas hydrates are observed in the same sediment cores in Kukuy K-2 mud volcano. We found that C2 dD of sI gas hydrate is larger than that of sII, whereas C1 d13C, C1 dD and C2 d13C values are practically the same in both hydrate structures. d13C of C1 and C2 of hydrate-bound gas are several permil smaller than those in pore water, showing that the current pore water is not the source of gas hydrates. These findings lead to a new model where the sII gas hydrates were formed prior to the sI hydrates.
Keywords
METHANE

Downloads

  • Hachikubo et al GRL 2009.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 569.52 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Hachikubo, Akihiro, Oleg Khlystov, Andrey Manakov, Masato Kida, Alexey Krylov, Hirotoshi Sakagami, Hirotsugu Minami, et al. 2009. “Model of Formation of Double Structure Gas Hydrates in Lake Baikal Based on Isotopic Data.” Geophysical Research Letters 36.
APA
Hachikubo, A., Khlystov, O., Manakov, A., Kida, M., Krylov, A., Sakagami, H., Minami, H., et al. (2009). Model of formation of double structure gas hydrates in Lake Baikal based on isotopic data. GEOPHYSICAL RESEARCH LETTERS, 36.
Vancouver
1.
Hachikubo A, Khlystov O, Manakov A, Kida M, Krylov A, Sakagami H, et al. Model of formation of double structure gas hydrates in Lake Baikal based on isotopic data. GEOPHYSICAL RESEARCH LETTERS. 2009;36.
MLA
Hachikubo, Akihiro et al. “Model of Formation of Double Structure Gas Hydrates in Lake Baikal Based on Isotopic Data.” GEOPHYSICAL RESEARCH LETTERS 36 (2009): n. pag. Print.
@article{1082876,
  abstract     = {We measured the isotopic compositions of methane (C1) and ethane (C2) of hydrate-bound gas and of dissolved gas in pore water retrieved from bottom sediments in Lake Baikal. Both structure I (sI:3%C2) and II (sII:14%C2) gas hydrates are observed in the same sediment cores in Kukuy K-2 mud volcano. We found that C2 dD of sI gas hydrate is larger than that of sII, whereas C1 d13C, C1 dD and C2 d13C values are practically the same in both hydrate structures. d13C of C1 and C2 of hydrate-bound gas are several permil smaller than those in pore water, showing that the current pore water is not the source of gas hydrates. These findings lead to a new model where the sII gas hydrates were formed prior to the sI hydrates.},
  articleno    = {L18504},
  author       = {Hachikubo, Akihiro and Khlystov, Oleg and Manakov, Andrey and Kida, Masato and Krylov, Alexey and Sakagami, Hirotoshi and Minami, Hirotsugu and Takahashi, Nobuo and Shoji, Hitoshi and Kalmychkov, Gennadiy and Poort, Jeffrey},
  issn         = {0094-8276},
  journal      = {GEOPHYSICAL RESEARCH LETTERS},
  keywords     = {METHANE},
  language     = {eng},
  pages        = {5},
  title        = {Model of formation of double structure gas hydrates in Lake Baikal based on isotopic data},
  url          = {http://dx.doi.org/10.1029/2009GL039805},
  volume       = {36},
  year         = {2009},
}

Altmetric
View in Altmetric
Web of Science
Times cited: