{"title":"なつしまNT-06-19航海（直江津沖海鷹海脚および上越海丘）によって採取された堆積物柱状試料の有機地球化学分析","authors":"成騎 荻原, 理 石崎, 良 松本","doi":"10.5026/JGEOGRAPHY.118.128","DOIUrl":null,"url":null,"abstract":"The Umitaka spur and the Joetsu knoll in the eastern margin of the Japan Sea off Naoetsu are characterized by a high methane flux accompanied by the formation of methane hydrates. Several sediment cores were obtained from this region during the “Natsushima” NT-06-19 cruise. Various geochemistry analyses were carried out on these samples. ANME-1 and ANME-2 groups of archaea were distinguished by biomarkers. ANME-1 was found from the sediment sample covered by a bacterial mat with the maximum concentration of dissolved methane in pore water. The samples in which ANME was detected are characterized by a remarkably high sulphur content.","PeriodicalId":356213,"journal":{"name":"Chigaku Zasshi (jounal of Geography)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chigaku Zasshi (jounal of Geography)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5026/JGEOGRAPHY.118.128","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
The Umitaka spur and the Joetsu knoll in the eastern margin of the Japan Sea off Naoetsu are characterized by a high methane flux accompanied by the formation of methane hydrates. Several sediment cores were obtained from this region during the “Natsushima” NT-06-19 cruise. Various geochemistry analyses were carried out on these samples. ANME-1 and ANME-2 groups of archaea were distinguished by biomarkers. ANME-1 was found from the sediment sample covered by a bacterial mat with the maximum concentration of dissolved methane in pore water. The samples in which ANME was detected are characterized by a remarkably high sulphur content.
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