The transition from the late Oligocene warm period into the early Miocene was marked by a series of rapid and brief episodes of cryospheric expansion and global cooling. We analyzed benthic foraminifers from nannofossil oozes recovered at Ocean Drilling Program Site 1218 to construct a stable isotope stratigraphy for the deep Pacific.

Sediment depth is given in rmcd. Foraminifers were picked from the >150 µm fraction for analyses. Analytical precision was better than 0.08 per mil.

Supplement to: Tripati, Aradhna K; Elderfield, Henry; Booth, Linda; Zachos, James C; Ferretti, Patrizia (2006): Data report: High-resolution benthic foraminiferal stable isotope stratigraphy across the Oligocene/Miocene boundary at Site 1218. In: Wilson, PA; Lyle, M; Firth, JV (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 199, 1-13