Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal)

Standard

Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal). / Hachikubo, Akihiro; Minami, Hirotsugu; Yamashita, Satoshi; Khabuev, Andrey; Krylov, Alexey; Kalmychkov, Gennadiy; Poort, Jeffrey; De Batist, Marc; Chenskiy, Alexandr; Manakov, Andrey; Khlystov, Oleg.

In: Scientific Reports, Vol. 10, No. 1, 14747, 01.12.2020.

Research output: Contribution to journal › Article › peer-review

Harvard

Hachikubo, A, Minami, H, Yamashita, S, Khabuev, A, Krylov, A, Kalmychkov, G, Poort, J, De Batist, M, Chenskiy, A, Manakov, A & Khlystov, O 2020, 'Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal)', Scientific Reports, vol. 10, no. 1, 14747. https://doi.org/10.1038/s41598-020-71410-2

APA

Hachikubo, A., Minami, H., Yamashita, S., Khabuev, A., Krylov, A., Kalmychkov, G., Poort, J., De Batist, M., Chenskiy, A., Manakov, A., & Khlystov, O. (2020). Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal). Scientific Reports, 10(1), [14747]. https://doi.org/10.1038/s41598-020-71410-2

Vancouver

Hachikubo A, Minami H, Yamashita S, Khabuev A, Krylov A, Kalmychkov G et al. Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal). Scientific Reports. 2020 Dec 1;10(1). 14747. https://doi.org/10.1038/s41598-020-71410-2

Author

Hachikubo, Akihiro ; Minami, Hirotsugu ; Yamashita, Satoshi ; Khabuev, Andrey ; Krylov, Alexey ; Kalmychkov, Gennadiy ; Poort, Jeffrey ; De Batist, Marc ; Chenskiy, Alexandr ; Manakov, Andrey ; Khlystov, Oleg. / Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal). In: Scientific Reports. 2020 ; Vol. 10, No. 1.

BibTeX

@article{2e39e574050d433696a2d0cb049ca092,

title = "Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal)",

abstract = "We reported the characteristics of hydrate-bound hydrocarbons in lake-bottom sediments at the Kedr mud volcano in Lake Baikal. Twenty hydrate-bearing sediment cores were retrieved, and methane-stable isotopes of hydrate-bound gases (δ13C and δ2H of − 47.8‰ to − 44.0‰ V-PDB and − 280.5‰ to − 272.8‰ V-SMOW, respectively) indicated their thermogenic origin accompanied with secondary microbial methane. Powder X-ray diffraction patterns of the crystals and molecular composition of the hydrate-bound gases suggested that structure II crystals showed a high concentration of ethane (around 14% of hydrate-bound hydrocarbons), whereas structure I crystals showed a relatively low concentration of ethane (2–5% of hydrate-bound hydrocarbons). These different crystallographic structures comprised complicated layers in the sub-lacustrine sediment, suggesting that the gas hydrates partly dissociate, concentrate ethane and form structure II crystals. We concluded that a high concentration of thermogenic ethane primarily controls the crystallographic structure of gas hydrates and that propane, iso-butane (2-methylpropane) and neopentane (2,2-dimethylpropane) are encaged into crystals in the re-crystallisation process.",

author = "Akihiro Hachikubo and Hirotsugu Minami and Satoshi Yamashita and Andrey Khabuev and Alexey Krylov and Gennadiy Kalmychkov and Jeffrey Poort and {De Batist}, Marc and Alexandr Chenskiy and Andrey Manakov and Oleg Khlystov",

year = "2020",

month = dec,

day = "1",

doi = "10.1038/s41598-020-71410-2",

language = "English",

volume = "10",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

number = "1",

}

RIS

TY - JOUR

T1 - Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal)

AU - Hachikubo, Akihiro

AU - Minami, Hirotsugu

AU - Yamashita, Satoshi

AU - Khabuev, Andrey

AU - Krylov, Alexey

AU - Kalmychkov, Gennadiy

AU - Poort, Jeffrey

AU - De Batist, Marc

AU - Chenskiy, Alexandr

AU - Manakov, Andrey

AU - Khlystov, Oleg

PY - 2020/12/1

Y1 - 2020/12/1

N2 - We reported the characteristics of hydrate-bound hydrocarbons in lake-bottom sediments at the Kedr mud volcano in Lake Baikal. Twenty hydrate-bearing sediment cores were retrieved, and methane-stable isotopes of hydrate-bound gases (δ13C and δ2H of − 47.8‰ to − 44.0‰ V-PDB and − 280.5‰ to − 272.8‰ V-SMOW, respectively) indicated their thermogenic origin accompanied with secondary microbial methane. Powder X-ray diffraction patterns of the crystals and molecular composition of the hydrate-bound gases suggested that structure II crystals showed a high concentration of ethane (around 14% of hydrate-bound hydrocarbons), whereas structure I crystals showed a relatively low concentration of ethane (2–5% of hydrate-bound hydrocarbons). These different crystallographic structures comprised complicated layers in the sub-lacustrine sediment, suggesting that the gas hydrates partly dissociate, concentrate ethane and form structure II crystals. We concluded that a high concentration of thermogenic ethane primarily controls the crystallographic structure of gas hydrates and that propane, iso-butane (2-methylpropane) and neopentane (2,2-dimethylpropane) are encaged into crystals in the re-crystallisation process.

AB - We reported the characteristics of hydrate-bound hydrocarbons in lake-bottom sediments at the Kedr mud volcano in Lake Baikal. Twenty hydrate-bearing sediment cores were retrieved, and methane-stable isotopes of hydrate-bound gases (δ13C and δ2H of − 47.8‰ to − 44.0‰ V-PDB and − 280.5‰ to − 272.8‰ V-SMOW, respectively) indicated their thermogenic origin accompanied with secondary microbial methane. Powder X-ray diffraction patterns of the crystals and molecular composition of the hydrate-bound gases suggested that structure II crystals showed a high concentration of ethane (around 14% of hydrate-bound hydrocarbons), whereas structure I crystals showed a relatively low concentration of ethane (2–5% of hydrate-bound hydrocarbons). These different crystallographic structures comprised complicated layers in the sub-lacustrine sediment, suggesting that the gas hydrates partly dissociate, concentrate ethane and form structure II crystals. We concluded that a high concentration of thermogenic ethane primarily controls the crystallographic structure of gas hydrates and that propane, iso-butane (2-methylpropane) and neopentane (2,2-dimethylpropane) are encaged into crystals in the re-crystallisation process.

UR - http://www.scopus.com/inward/record.url?scp=85090395736&partnerID=8YFLogxK

U2 - 10.1038/s41598-020-71410-2

DO - 10.1038/s41598-020-71410-2

M3 - Article

C2 - 32901048

AN - SCOPUS:85090395736

VL - 10

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 14747

ER -

ID: 75887184