2024-03-28T23:40:07Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:02000532
2022-12-14T04:23:34Z
150:151
第22次野尻湖発掘地の貫ノ木シルト部層と海端砂シルト部層の砂粒組成と化学組成
Grain composition and sediment chemistry of the Kannoki Silt Member and the Umibata Sand and Silt Member at the 22nd Nojiri-ko Excavation site, central Japan.
野尻湖火山灰グループ
長橋, 良隆
斉藤, 尚人
竹下, 欣宏
中川, 知津子
小林, 雅弘
花岡, 邦明
宮下, 忠
小林忠夫
Nojiri-ko Excavation
Nojiri-ko Formation
tephra
volcaniclastic deposits
grain composition
chemical composition
We clarified the grain composition and sediments chemistry of the Kannoki Silt Member and the Umibata Sand and Silt Member at Lake Nojiri-ko, central Japan. The grain composition of 2 phi to 3 phi composed mainly of plagioclase, lithic fragments, orthopyroxene, clinopyroxene and hornblende. This result agree with our previous studies. Major and trace element compositions of sediments finner than pebble size were measured using X-ray fluorescence analysis. The result of major element composition show basaltic andesite to andesite compotions. We are recognized strtigraphic variations of the Enrichment Factor of the MgO, Fe2O3 and TiO2, and the variations correspond to mafic minerals contents.
Article
野尻湖ナウマンゾウ博物館研究報告. 28: 25-33(2020)
野尻湖ナウマンゾウ博物館
2020-02
jpn
journal article
VoR
http://hdl.handle.net/10091/0002000532
https://soar-ir.repo.nii.ac.jp/records/2000532
1882-8825
AA11455278
野尻湖ナウマンゾウ博物館研究報告
28
25
33
https://soar-ir.repo.nii.ac.jp/record/2000532/files/17K00965_9.pdf
application/pdf
2021-12-24