| 引用文献 | 
| 1 |  | Nakagawa, M. (1992)  Spatial variation in chemical cmposition of Pliocene and Quaternary volcanic rocks in southern Hokkaido, northeastern Japan arc.  J.Fac.Sci., Hokkaido Univ., IV, 23, 175-197 | 46 | 
| 2 | 太田良平(1954)5万分の1地質図幅「徳舜瞥」及び同説明書,地質調査所,50p. | Ohta, R. (1954) The geological sheet map ``Tokushunbetsu'', scale 1:50,000 and its explanetary text. Geol.Surv.Japan , 50p. in Japanese with English abstract. | 730 | 
| 3 | 太田良平(1956)5万分の1地質図幅「虻田」及び同説明書,地質調査所,76p. | Ohta, R. (1956) The geological sheet map ``Abuta'', scale 1:50,000 and its explanetary text. Geol.Surv.Japan , 76p. in Japanese with English abstract. | 731 | 
| 4 | 斉藤昌之・小山内熙・酒匂純俊(1953)5万分の1地質図幅「登別温泉」及び同説明書,北海道地下資源調査所,84p. | Saito, M., Osanai, H. and Sako, S. (1953) The geological sheet map ``Noboribetsu onsen'', scale 1:50,000 and its explanetary text. Geol.Surv.Hokkaido , 84p. in Japanese with English abstract. | 804 | 
| 5 | 中川光弘他(未公表) | Nakagawa, M.  et al. (unpublished) | 635 |