論文

査読有り
2016年

Discovery of extremely REY-rich mud in the western North Pacific Ocean

GEOCHEMICAL JOURNAL
  • Koichi Iijima
  • ,
  • Kazutaka Yasukawa
  • ,
  • Koichiro Fujinaga
  • ,
  • Kentaro Nakamura
  • ,
  • Shiki Machida
  • ,
  • Yutaro Takaya
  • ,
  • Junichiro Ohta
  • ,
  • Satoru Haraguchi
  • ,
  • Yoshiro Nishio
  • ,
  • Yoichi Usui
  • ,
  • Tatsuo Nozaki
  • ,
  • Toshitsugu Yamazaki
  • ,
  • Yuji Ichiyama
  • ,
  • Akira Ijiri
  • ,
  • Fumio Inagaki
  • ,
  • Hideaki Machiyama
  • ,
  • Katsuhiko Suzuki
  • ,
  • Yasuhiro Kato

50
6
開始ページ
557
終了ページ
573
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.2343/geochemj.2.0431
出版者・発行元
GEOCHEMICAL SOC JAPAN

We have discovered deep-sea mud that is extremely enriched in rare-earth elements and yttrium (together called REY) in the Japanese Exclusive Economic Zone around Minamitorishima Island, in the western North Pacific Ocean. The maximum total REY concentration reaches approximately 7000 ppm, which is much higher than that reported for conventional REY deposits on land and other known potential REY resources in the ocean. The extremely REY-rich mud is characterized by abundant phillipsite and biogenic calcium phosphate. In addition, the stratigraphic layer with the highest REY concentration occurs just similar to 3 m beneath the seafloor. The shallow burial of these strata together with the high REY content, especially those of heavy rare-earth elements, suggest that the newly discovered extremely REY-rich mud may be a promising REY resource.

Web of Science ® 被引用回数 : 21

リンク情報
DOI
https://doi.org/10.2343/geochemj.2.0431
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000392504000010&DestApp=WOS_CPL

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