Trace element composition of Tertiary volcanic rocks of northeast Japan

Mitsuru Ebihara, Yuji Nakamura, Hiroshi Wakita, Hajime Kurasawa, Tadashi Konda

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Abundances of trace elements including rare earth elements (REE) were determined by instrumental neutron activation analysis for twenty three Tertiary volcanic rocks of northeast Japan, Posh tive correlations were confirmed in the following couples of elements: HfLa, K-La, Th-La and Fe-Sc. Unlike Quaternary volcanic rocks, Tertiary volcanic rocks show no definite correlation between the inclination of REE patterns and the distance of sampling sites from the estimated volcanic front of the Tertiary, The presence of low alkali tholeiites with relatively flat REE patterns in the Japan Sea side suggests that Tertiary volcanism is qualitatively different from Quaternary one.

本文言語English
ページ(範囲)287-295
ページ数9
ジャーナルGEOCHEMICAL JOURNAL
18
6
DOI
出版ステータスPublished - 1984
外部発表はい

ASJC Scopus subject areas

  • 地球物理学
  • 地球化学および岩石学

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