四国南西部高月山とその周辺の中新世花こう岩類のＫ‐Ａｒ年代

DOI Web Site 被引用文献5件 参考文献46件

書誌事項

タイトル別名
  • K-Ar ages of the Miocene granites in the Takatsuki-yama and the surrounding areas, southwestern Shikoku.
  • 四国南西部高月山とその周辺の中新世花崗岩類のK-Ar年代
  • シコク ナンセイブ タカツキヤマ ト ソノ シュウヘン ノ チュウシンセイ カコウガンルイ ノ K Ar ネンダイ

この論文をさがす

抄録

Three biotite K-Ar ages were determined for the Miocene Takatsuki-yama and Miuchi plutons, southwestern Shikoku, Japan. These plutons belong to the Outer Zone Acidic Rocks in the Southwest Japan (OZARSWJ). The obtained ages from the two granodioritic samples in the Takatsuki-yama pluton give a good coincidence; 13.9±0.2 Ma and 14.0±0.2 Ma. The granite sample of the Miuchi pluton gives slightly younger age (13.4±0.2 Ma) than those of the Takatsuki-yama pluton. Though these two plutons were considered as the different exposures of a single batholith, the different ages suggest that these two exposures might belong to the different intrusive blocks with short interval. The obtained ages for the both pultons are within the range of 13-15 Ma, which corresponds to the time interval of the other OZARSWJ granitic rocks.

収録刊行物

  • 岩石鉱物科学

    岩石鉱物科学 29 (3), 67-73, 2000

    一般社団法人　日本鉱物科学会

被引用文献 (5)*注記

もっと見る

参考文献 (46)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ