Changes of Oligocene planktic foraminiferal depth habitat in the eastern equatorial Pacific (IODP Site U1334 and U1333)

Hiroki Matsui1, Hiroshi Nishi1, Reishi Takashima1, Azumi Kuroyanagi1, Minoru Ikehara2, Hideko Takayanagi1 and Yasufumi Iryu1, (1)Tohoku University, Sendai, Japan, (2)Kochi University, Center for Advanced Marine Core Research, Nankoku, Japan