活動時代と性質 |
噴出物の分類 | Lava flows and minor pyroclastic flows |
火山体の分類 | LC |
層序 | 0.16-0.09Ma |
年代測定値 | K-Ar (groundmass; peak comparison), IIa, 0.13 ± 0.01 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIa, 0.12 ± 0.03 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIa, 0.16 ± 0.02 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIa, 0.14 ± 0.01 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIb, 0.10 ± 0.01 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIb, 0.09 ± 0.01 Ma [Ban et al. in prep.]K-Ar (groundmass; peak comparison), IIb, 0.10 ± 0.01 Ma [Ban et al. in prep.] |
引用文献 |
1 | 林信太郎 (1984) 鳥海火山の地質. 岩鉱,79,249-265. | Hayashi, S. (1984) Geology of Chokai volcano. Jour. Japan. Assoc. Min. Petr. Econ. Geol., 79, 249-265.(in Japanese with English abstract) | 199 |
2 | | Hayashi, S. (1985) Petrology of Chokai volcano, northeastern Japan. Sci. Rep. Tohoku Univ., Ser. 3, 16, 269-325. ( in English) | 46 |
3 | 林信太郎 (1986) 鳥海火山の岩石学(その3) -微量元素組成および岩石成因論-.岩鉱,81,370-383. | Hayashi, S. (1986)Petrology of Chokai volcano. Part III ムTrace elements and petrogenesisム. Jour. Japan. Assoc. Min. Petr. Econ. Geol., 81, 370-383.(in Japanese with English abstract) | 201 |
4 | 中野 俊・土谷信之 (1992) 鳥海山及び吹浦地域の地質. 地域地質研究報告(5万分の1図幅),地質調査所,138p. | Nakano, S. and Tsuchiya, N. (1992) Geology of the Chokaisan and Fukura district. With geological sheet map at 1:50,000, Geol. Surv. Japan, 138 pp.(in Japanese with English abstract) | 669 |
5 | 池辺穣・大沢・・井上寛生 (1979) 酒田地域の地質.地域地質研究報告(5万分の1図幅),地質調査所,42p. | Ikebe, Y., Ozawa, A., and Inoue, H. (1979) Geology of Sakata district. With geological sheet map at 1:50,000, Geol. Surv. Japan. 42 pp.(in Japanese with English abstract) | 249 |
6 | 宇井忠英 (1972) 鳥海火山中腹の断層崖と山麓に分布する火砕岩の成因. 「鳥海山・飛島」,山形県総合学術調査会, 8-13. | Ui, T. (1972) Fault scarps on the slope of the Chokai volcano and genesis of pyroclastic rocks distributed at the flank. In: Chokai-san Tobishima, 8-13, Yamagata prefecture.(in Japanese with English abstract) | 1050 |
7 | 林 信太郎 (1984) 鳥海火山の岩石学(その1)―岩石記載および主成分化学組成―.岩鉱 ,79,475-483. | Hayashi, H. (1984) Petrology of Chokai volcano. Part 1 - Petrography and major element compositions -. Jour. Japan Assoc. Min. Petr. Econ. Geol., 79, 475-483. | 198 |