Figure F2. Occurrence of diatom events (>5% diatoms) observed in smear slides compared to the estimated positions of the equator crossing in Leg 199 dill sites (Shipboard Scientific Party, 2002). Site 1219 shows two diatom levels—one in the Middle Eocene and one during the Oligocene—along with the equator crossing of the site ~29 m.y. ago. F.Z. = Fracture Zone. N = nassellarians, S = spumellarians.

Figure F2. Occurrence of diatom events (>5% diatoms) observed in smear slides compared to the estimated positions of the equator crossing in Leg 199 dill sites (Shipboard Scientific Party, 2002). Site 1219 shows two diatom levels—one in the Middle Eocene and one during the Oligocene—along with the equator crossing of the site ~29 m.y. ago. F.Z. = Fracture Zone. N = nassellarians, S = spumellarians.