"長井 雅史,上木 賢太,Akihiko Terada,外西 奈津美,乾 睦子,KENJI NOGAMI","草津白根山二軒屋及び谷沢原火山観測井の岩石コア試料の岩相と層序",,"日本火山学会講演予稿集","特定非営利活動法人 日本火山学会","Vol. 2017","No. 0","pp. 205-205",2017,Sept.