別府湾コアからみた由布・鶴見火山群における完新世の噴火活動
Holocene Eruptive Activity of Yufu-Tsurumi Volcano Group Found from Piston Cores in Beppu Bay, Central Kyushu

Koji UMEDA, Megumi KUSANAGI, Akira FURUSAWA, Tadahide UI
1996 Bulletin of the Volcanological Society of Japan  
doi:10.18940/kazan.41.2_61 fatcat:eon3x5tbfjgfrofuau6hgxiqj4