2-3-3　北海道日高沖で回収された天然ガスハイドレート結晶および堆積物ガスの特徴

DOI

書誌事項

タイトル別名
  • 2-3-3　Characteristics of Gas Hydrate Crystals and Sediment Gases Retrieved off Hidaka (Hokkaido)

抄録

<p>Natural gas hydrates have been recovered off Hidaka (Hokkaido, the Pacific Ocean) in the framework of practical education of Kitami Institute of Technology. We retrieved hydrate-bound sediment cores from gas seep sites using T/S Oshoro-maru of Hokkaido University. Plate-like gas hydrate crystals were found in the core of C114-GC2104, located around 155 cm beneath the sea floor. Crystallographic structure of the samples belonged to the structure I, and hydration number, cage occupancies of large and small cages were estimated as 6.00, 0.97 ± 0.00, and 0.93 ± 0.01, respectively. Molecular and isotopic composition of hydrate-bound gas suggested microbial origin via CO2 reduction. δ13C of ethane also indicated microbial.</p>

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390011620170694912
  • DOI
    10.20550/jietaikaiyoushi.31.0_28
  • ISSN
    24238325
    24238317
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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