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Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal)
https://kitami-it.repo.nii.ac.jp/records/2000417
https://kitami-it.repo.nii.ac.jp/records/2000417f3e0fb4c-b788-4e96-8e77-e5d033d2cfbe
| 名前 / ファイル | ライセンス | アクション |
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s41598-020-71410-2(1).pdf (8.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||||||||
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| 公開日 | 2023-04-18 | |||||||||||||||||||||||||||
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| タイトル | Characteristics of hydrate-bound gas retrieved at the Kedr mud volcano (southern Lake Baikal) | |||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||||||
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| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||
| タイプ | journal article | |||||||||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||||||||
| 著者 |
Akihiro, Hachikubo
× Akihiro, Hachikubo
× Hirotsugu, Minami
× Satoshi, Yamashita
× Andrey, Khabuev
× Alexey, Krylov
× Gennadiy Kalmychkov
× Jefrey, Poort
× Marc, De Batist
× Alexandr, Chenskiy
× Andrey, Manakov
× Oleg, Khlystov
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| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||
| 内容記述 | 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 methanestable isotopes of hydrate-bound gases (δ13C and δ2 H 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 difraction 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 diferent 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 |
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| 言語 | en | |||||||||||||||||||||||||||
| 書誌情報 |
en : Scientific Reports 巻 10, p. 14747, 発行日 2020-09 |
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| 識別子タイプ | DOI | |||||||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1038/s41598-020-71410-2 | |||||||||||||||||||||||||||
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| 出版者 | nature springer | |||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||||||||
| 値 | publisher | |||||||||||||||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||||||
